Industrial Screw Compressors: Installation & Maintenance [PDF]

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INDUSTRIAL SCREW COMPRESSORS

DIAMOND SERIES (2.2-22 kW) PLEASE READ THIS MANUAL BEFORE INSTALLATION AND ANY COMPRESSOR OPERATION.

INSTALLATION & MAINTENANCE

DMD DMD VST

USER MANUAL

1 DMD-UM-2013-A Part No: 909002-E-A

CONTENTS CHAPTER 1

SAFETY REGULATIONS

1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10

GENERAL INFORMATION........................................................................................... PERSONAL SAFETY PRECAUTIONS......................................................................... GENERAL WORKING WITH AIR PRESSURE........................................................... FIRE AND EXPLOSIVE DANGER............................................................................... MOVING PARTS............................................................................................................ HOT SURFACES, SHARP EDGES AND SHARP CORNERS..................................... TOXIC AND IRRITABLE SUBSTANCES.................................................................... ELECTRICAL PRECAUTIONS..................................................................................... TRANSPORTATION...................................................................................................... OTHER IMPORTANT PRECAUTIONS ........................................................................

CHAPTER 2 2.1

INSTALLATION

1 1 1 1 1 1 2 2 2 2

2.2 2.3 2.4 2.5 2.6

LOCATION OF THE COMPRESSORS........................................................................ VENTILATION AND COOLING.................................................................................. AIR PRESSURE LINES................................................................................................. LUBRICATION CHECK............................................................................................... ELECTRICAL INSTALLATION................................................................................... CHECKING MOTOR DIRECTION...............................................................................

3 3 3 3 3 4

CHAPTER 3

SPECIFICATIONS

3.1 3.2

TECHNICAL SPECS....................................................................................................... 5 COMPRESSOR ROOM AND SET UP ........................................................................... 6

CHAPTER 4

COMPRESSOR SYSTEM

4.1 4.2 4.3 4.4 4.5 4.6 4.7

INTRODUCTION............................................................................................................ DESCRIPTION OF COMPONENTS.............................................................................. AIR-END, FUNCTIONAL DESCRIPTION .................................................................. PRODUCTION OF AIR PRESSURE.............................................................................. COOLING & LUBRICATION SYSTEM, FUNCTIONAL DESCRIPTION................. AIR INLET SYSTEM, FUNCTIONAL DESCRIPTION ............................................... CONTROL SYSTEM, FUNCTIONAL DESCRIPTION ................................................

CHAPTER 5

MAINTENANCE

5.1 5.2 5.3 5.4 5.5 5.6 5.7 A B C D E F G 5.8.A 5.8.B 5.8.C 5.9

GENERAL INFORMATION......................................................................................... DAILY OPERATION..................................................................................................... PERIODIC MAINTENANCE ……………................................................................... OIL REPLACEMENT................. …………….............................................................. OIL FILTER MAINTENANCE...................................................................................... CHECKING OIL SEPARATOR..................................................................................... PROCEDURE FOR COMPONENT REPLACEMENT AND ADJUSTMENTS......... REPLACING OIL FILTER ELEMENTS...................................................................... REPLACING AIR FILTERS.......................................................................................... CHECKING AIR FILTER ELEMENTS........................................................................ REPLACING THE SEPARATOR ELEMENT.............................................................. OIL RETURN LINE MAINTENANCE ........................................................................ CONTROL SYSTEM ADJUSTMENT…...................................................................... REPLACING AND SETTING THE POLY-V DRIVE BELT.................................... MAINTENANCE INSTRUCTION FOR 3- PHASE ELECTRO MOTORS................ SEALING/LOCKING FLUID – USES & PROPERTIES.............................................. PIPING & EQUIPMENT LAYOUT.............................................................................. INVERTER MAINTENANCE AND INSPECTION FOR VST COMPRESSORS.....

CHAPTER 6

FAULT RESOLVE

6.1 6.2

INTRODUCTION........................................................................................................... 14 TROUBLESHOOTING ................................................................................................. 14

CHAPTER 7

TABLES

7.1 7.2

CABLE, FUSES & CIRCUIT BREAKERS................................................................... 20 MAINTENANCE INTERVALS & SPARES................................................................. 21

CHAPTER 8

ORDERING SPARES................................................................................................ 22

APPENDIX

TABLE FOR MAINTENANCE RECORDS.................................................................. 23

7 7 7 7 7 7 7 8 8 8 8 8 9 9 9 9 9 9 9 10 10 11 11 12 13

FOR SPARES PLEASE ALSO REFER TO THE EXPLODED COMPONENT DRAWINGS AND PARTS LIST.

INTRODUCTION DEAR EKOMAK COMPRESSOR USER Your compressor has been produced with advanced technology and with the latest engineering standards, with years of testing. It is mostly problem-free, efficient and reliable if operated properly. Security and safety must be main consideration. DMD air screw compressors have been made to produce compressed air which is used for air tools, machines and processes. Manufacturer will not be liable for applications outside the scope of the machine and its intended use, and this will void the warranty if this seems to be the case. However, any machine could be a potential source of danger if improperly handled or used, tampered with by unqualified, untrained or careless personnel or if not used within the scope of its intended use. Therefore, be sure to observe all instructions given in this manual and strictly comply with all local safety and accident prevention rules and regulations. DO NOT attempt to handle, locate, mount, maintain and/or carry out any reparation process unless you have read and understand this manual carefully. Your compressor may deviate slightly from the illustrations shown in this manual. This is of no importance for the operation of the machine. Should any questions arise in spite of the instructions in this manual or if you have any inquiries concerning this manual or wish to obtain additional copies, please do not hesitate to contact our Technical Service Department they will glad to help you. Make sure the manual is kept near the compressor and thus always at hand for operating personnel. This compressor should be operated and used only by trained and qualified persons. No person is allowed to operate the compressoreven for a short time-without adequate-training. The owner should clearly establish who is responsible for assembling, disassembling and reassembling the compressor for putting it into operation, set up, operating and servicing the compressor. The owner is obliged to operate the compressor only if it is in a safe condition. Major repairs must only be carried out by the manufacturer or by specially authorised, qualified personnel.

Product safety signs or decals should be periodically inspected and cleaned or replaced when they no longer meet the legibility requirements for safe viewing at a reasonable distance.

Make sure that enclosures removed for maintenance or repairs are refitted before restarting the compressor.

DO NOT remove, alter or deactivate any machine parts such as safety valve, belt guard, fan guard, safety pressure switch, temperature switch, fuses, sensors etc. DO NOT begin any maintenance or adjustment work before the compressor has been switched off, P1 (internal/system) and P2 (line) pressures are –0- and make sure to secure the compressor against accidental restart. DO NOT use any flammable or explosive material for cleaning purposes. DO NOT allow any flammable gas use which may cause explosion or burning in the inlet air. Keep the working area clean and tidy. Only qualified electricians are allowed to do any work on the electrical system. Only use original specified spare parts for your compressor. We assume you keep needed spares in your stock. DO NOT allow any unauthorized companies for part replacement. Only use EKOMAK specified parts for servce or repair work. Ensure that enough stock is available to carry out service work. It is not permitted to have unauthorised personnel working on EKOMAK Compressors. Local rules and regulatons must be adhered to when working on EKOMAK Compressors. Compressors must be grounded. DO NOT attempt to operate the compressor out of stated operating pressures. (Operating pressure is indicated on the serial number plate) READ THE MANUAL Each authorized machine operator must have fully read the manual before working on the compressor. The person who is responsible for plant safety should request all operators to confirm this by their signature. I HAVE READ AND UNDERSTOOD THIS OPERATOR’S MANUAL Signature Owner

.......................................

Date ..............................................

1. SAFETY PROCEDURES 1.1 GENERAL EKOMAK Cooperation and its subsidiaries therein and manufacture all of their products so they can be operated safely. However, the responsibility for safe operation rests with those who use and maintain these products. The following safety precautions are offered as a guide who, if conscientiously followed, will minimize the possibility of accidents throughout the useful life of this equipment. The compressor should be operated only by those who have been trained and delegated to do so, and who have read and understood this manual. Failure to follow the instructions, procedures and safety precautions in this manual can result in accidents and injuries. Read this manual prior to installation, start up and maintenance. NEVER start the compressor unless it is safe to do so. DO NOT attempt to operate the compressor when safety is in doubt. Tag the compressor and render it inoperative by physically disconnecting and locking out all power at source, ensure that a visible sign illustrates the need to keep the machine isolated from the supply so others who may not know of the unsafe condition, cannot attempt to operate it until the condition is corrected. Install, use and operate the compressor only in full compliance with all applicable Federal, State and Local codes, standards and regulations. DO NOT modify the compressor and/or controls in any way except with written factory approval.

1.2 PERSONAL PROTECTIVE EQUIPMENT Before installing or operating the compressor, owners, employers and users should become familiar with, and comply with, all applicable regulations and any applicable Federal, State and Local codes, standards and regulations relating to personal protection and over all safety.

1.3 PRESSURE RELEASE A. Install an appropriate release valve between the service air outlet and shut off valve, either at the compressor or at any other point along the air line, this must be in line with all applicable Federal, State and Local codes, standards and regulations. B. DO NOT use air tools that are rated below the maximum rating of the compressor. Select air tools, air hoses, pipes, valves, filters and other fittings accordingly. DO NOT exceed manufacturer's rated safe operating pressures for these items. C. Secure all hose connections by wire, chain or other suitable retaining devices to prevent tools or hose ends from being accidentally disconnected and expelled. D. Vent all internal pressure prior to opening any line, fitting, hose, valve, drain plug, connection or other component such as filters and oil lines. Open oil filler cap only when compressor is not running and is not pressurized. Shut down the compressor and bleed the separator tank pressure (P1) to zero internal pressure before removing the cap (see the separator tank pressure is 0 from the pressure gauge by toggling the ∆p control button). In order to prevent burns and injuries, wait for oil foam reduction in the separator tank after compressor has shut down. E. Keep personal away from air line openings or discharge opening of hoses or tools or other points of compressed air discharge. F. DO NOT engage in horseplay with air hoses as death or serious injury may result. G. DO NOT modify the safety valves, pressure sensors and pressure switches.

1.4 FIRE AND EXPLOSION A. Clean up spills of lubricant or other combustible substances immediately, if such spills occur. B. Shut off the compressor and allow it to cool. Then keep sparks, flames or other sources of ignition away and DO NOT permit smoking in the vicinity when checking or adding lubricant. C. DO NOT permit oils or oil film to accumulate on, under or around acoustical material, or on any external surfaces of the air compressor or on internal surfaces of the enclosure. Wipe down using a water based cleaner or steam-clean as required. If necessary remove acoustical material, clean all surfaces and replace acoustical material. Any acoustical material with a protective covering that has been torn or punctured should be replaced immediately to prevent accumulation DO NOT use flammable solvents for cleaning purposes. D. Disconnect and isolate all power at source prior to attempting any repairs or cleaning of the compressor or of the inside of the enclosure if any.

E. Keep electrical wiring, including all terminals and pressure connectors in a good condition. Replace any wiring that has cracked, cut abraded or otherwise degraded insulation, or terminals that are worn, discoloured or corroded. Keep all terminals and pressure connectors clean and tight. F. Keep grounded and/or conductive objects such as tools away from exposed live electrical parts such as terminals to avoid arching which might serve as a source of ignition. G. Remove any acoustical material or other material that may be damaged by heat or that may support combustion and is in close proximity, prior to attempting weld repairs. H. Keep suitable fully charged fire extinguisher or extinguishers nearby when servicing and operating the compressor. I. Keep oil rags, trash, leaves, litter or other combustibles out of and away from the compressor. J. DO NOT operate the compressor without adequate cooling air with degraded and or inadequate flow of lubricant. K. DO NOT attempt to operate the compressor in any classification of hazardous environment unless the compressor has been specially designed and manufactured for that duty. L. Using of not suitable cable diameter and wrong current protection can cause fire danger during normal operation period and fault position (overload or short-circuit). When making electrical connection, select the recommended cable diameter, grounding and circuit breakers (7th section, 1st tabelle) 1.5 MOVING PARTS A. Keep hands, arms or other parts of the body and also clothes away from pulleys and belts, fans and other moving parts. B. DO NOT attempt to operate the compressor with the fan, belt or other guards removed. C. Wear snug-fitting clothing and restrict long hair when working around this compressor, especially when exposed to hot or moving parts. D. Keep access doors, if any, closed except when making repairs and adjustments. E. Make sure all personal are out of and/or clear of the compressor prior to attempting to start or operate it. F. Disconnect and isolate all power at source and verify at the compressor that all circuits are de-energized to minimize the possibility of accidental start up or operation, prior to attempting repairs or adjustments. This is especially important when compressor are remotely controlled and remote control must be highlighted by signs that are visible from each point of compressor G. Keep hands, feet, floors, controls and walking surfaces clean and free from fluid, water or other liquids to minimize the possibility of slips and falls or other related accidents. H. Maximum light source is required in and around the area.

1.6 HOT SURFACES, SHARP EDGES AND SHARP CORNERS A. Avoid body contact with hot oil, hot surfaces and sharp

edges and corners. B. Keep all parts of the body away from all points of air discharge. C. Wear personal protective equipment including gloves and head covering when working in, on or around of the compressor. D. Keep a first aid kit handy. Seek medical assistance promptly in case of injury. Treat small cuts and burns as untreated may lead to infection.

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1. SAFETY PROCEDURES 1.7 – TOXIC AND IRRITATING SUBSTANCES

1.9 LIFTING AND HANDLING

A. DO NOT use air produced by this compressor for human

A. Please lift the compressor using a forklift (truck), see

respiration purposes. DANGER !

Death or serious injury can result from inhaling compressed air without using proper safety equipment. B. DO NOT use compressed air in air lines supplying respirators

or other breathing air utilization equipment and DO NOT discharge air from these systems in unventilated or other confined areas. C. Operate the compressor only adequately ventilated areas. D. Locate the compressor or provide a separate air inlet so that it is not likely to ingest exhaust fumes or other toxic, noxious or corrosive fumes or substances. From expelled gases, air environments are formed with high levels of acidic content. This air is sucked into the compressor and can lead to compressor component damage, especially where the aluminium cooler and Air end is concerned. Apart from this the properties of the compressor oil can be detrimentally affected. E. Coolants and lubricants used in this compressor are typical to the industry. Care should be taken to avoid accidental ingestion and/or skin contact. (If needed use a protective glove and protective glasses) In the event of ingestion, seek medical treatment promptly. Wash with soap and water and in the event of skin contact. Consult the compressor operator's manual lubrication section for information regarding compressor oil replenishment.

1.8 – ELECTRIC SHOCK PREVENTION

B. C.

D. E.

Figure 1.1. Lift the compressor considering the fork entry points and centre of gravity. Prior to lifting the machine, ensure that the forks are correctly configured, spaced and secure. Ensure during the lifting operation that the machine is not damaged in any way or subjected to situations which could lead to damage. Keep all personal out from under and away from the compressor whenever it is suspended. DO NOT attempt to lift in high winds and never higher than the recommended height.

Figure 1.1: DELIVERY AND TRANSPORTATION

A This compressor should be installed and maintained additional

B.

C. D.

E.

F.

G. H.

to this manual in full compliance with all applicable Federal, State and Local codes, standards and regulations, including those of the National Electrical Code and also including those relative to equipment grounding conductors and only by personal that are trained, qualified and delegated to do so. Keep all parts of the body and any hand-held tools or other conductive objects away from exposed live connections. Maintain a dry footing, stand on insulated surfaces and DO NOT contact any other portion of the compressor when making adjustments or repair to exposed live parts of the electrical system. Make all adjustments and repairs with one hand only -if possible (keeping one hand in your pocket) with the right hand-, so as to minimize the possibility of creating a current path to the heart. Attempt repairs in clean, dry, well lit and ventilated areas only. DO NOT leave the compressor unattended with open electrical enclosures. If necessary to do so, then disconnect, isolate and tag all power at source so others will not inadvertently restore power. Disconnect, isolate and tag all power at source prior to attempting repairs or adjustments to rotating parts and prior to handling any ungrounded conductors. Where VST machines are concerned, a period of 5 minutes should be observed before working on Electrical connections. This allows for capacitive discharge. After installation and prior to the operation check all connections and installations. EKOMAK strongly recommends an independent over current protection relay in the main Electrical consumer unit.

1.10 OTHER IMPORTANT PRECAUTIONS A. Ensure after maintenance that any tools or any other components that do not need to be in the Compressor housing are removed prior to closure. B. Prior to Electrical connection ensure that the cable

Insulation has not been damaged in any way and that the crimped ends are properly connected, insulated and do not pose any danger. C. Ensure that the 3 Phase mains cable and earth are terminated correctly and into the correct terminals (Airend rotation MUST be correct to prevent serious damage) There is a sticker inside the electrical babinet which you can see the running voltage and frequency of the compressor. In 7th section of this manual, there is a tabelle showing the suitable cable diameters and circuit breakers. All the connections must be done according to the electrical wiring diagram inside the electrical cabinet.) D. Ensure that all panels have been placed back onto the Compressor after maintenance. E. Ensure that all moving parts are free and unnobstructed. F. Ekomak compressors can be seated onto most foundations, ensure that the platform can take the weight and that any leaks cannot leads to fire hazards or corrosion. G. Compressor cabinet and connections are not suitable to carry a person weight. Do not press on the compressor and connections. H. There is a spring in the MPV, thermostatic valve and safety valve of the compressor. Be careful when disconnecting these parts. The spring can bound to your body (The safety valve is stamped with a seal, do not try to open safety valve and do not change the settings.) I. The electrical cabinet is protected against dust. It is also protected agains rain but electrical equipments can be affected by water spray and high humidity. Therefore it is recommended to put the compressor in a closed room to protect against water and humidity.

2

2. INSTALLATION 2.1 COMPRESSOR LOCATION A correct Compressor room can be seen by referring to in Pic. 2.1. If a DMD Compressoris seated onto a tank refer to Pic.3.2. To connect the Compressor to an air system flexible pipes should be used, please refer to the pipe manufacturer’s instructions.

2.4 OIL LEVEL CHECK Before starting the Compressor or 10 minutes after shutdown unscrew the oil fill screw and check the oil level. If need be, fill the the oil to the required level. Running the compressor with too little oil can result in over heating. Read oil maintenance for further details.

2.5 ELECTRICAL PREPARATION The electrical installation must be selected and connected according to rated current values of the compressor which are documented in the manuals. Connections must be performed by the qualified electricians. There is a sticker inside the electrical babinet which you can see the running voltage and frequency of the compressor. In 7th section of this manual, there is a tabelle showing the suitable cable diameters and circuit breakers. All the connections must be done according to the electrical wiring diagram inside the electrical cabinet. NOTE : Check that all electrical connections are correctly connected and tightened iaw local regulations. Be sure that all the connections must be done accorrding to the electrical wiring diagram inside the electrical cabinet. WARNING ! 2- Flexible tubing 3- Air pipe 4- Stop tap 5- Blow down circuit

A: Compressor B: Pressure tank C: Dryer D: Filter E: Stop tap.

Lethal shock hazard inside. Disconnect and isolate all power at source before opening and servicing.

Figure 2.1: INSTALLATION

The compressor is suitable to work in a closed, well-ventilated and on a flat surface. If you want to run the compressor outdoor, please contact to Ekomak services. Ekomak compressors can be placed on almost every level foundation, which can hold the compressors weight. The foundation must be designed to hold each particular compressor.

2.2 VENTILATION AND COOLING Select a location to permit sufficient unobstructed air flow in and out of the compressor to keep the operating temperature stable. The minimum distance that the compressor should be from surrounding walls and ceiling should be sufficient to enable good air circulation and ease when servicing. When necessary incorporate an extra fan into the ducting to draw warm away from the compresor unit, especially for units DMD 200 and smaller, the air should be drawn away and expelled into a separated area. Th ducting system must be the same physical sie of the cooler itself and should not be hindered in any way. To prevent excessive ambient temperature rising, it is imperative to provide adequate ventilation. DO NOT install an air cooled after cooler where it will be exposed to temperature less than 0 °C

2.3 SERVICE AIR PIPING Service air piping should be installed as shown in Figure 2.1. A shut off valve should be installed (E) to isolate the compressor from the service line. Also notice that the service line should be equipped with the condensate drains throughout the system.

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2. INSTALLATION 2.6 MOTOR ROTATION DIRECTION CHECK FOR MACHINES WITHOUT PHASE SEQUENCE RELAY

2.6 MOTOR ROTATION DIRECTION CHECK FOR MACHINES WITH PHASE SEQUENCE RELAY

It is a definite requirement to check the direction of rotation during the initial start up. Please read and follow the instructions below: 1. For DMD machines with a Frequency Inverter (VST); • Open the outer panels of the Compressor so that the moving parts are visible. • Initially switch on the machine and immediately select the emergency stop button. Check the rotation of the main fan against the arrow illustrated on the tin panel. • If the main fan is turning in the opposite direction swap (Phase L1, L2) . • Add the outer panels back onto the Compressor. Any tampering of main Electrical feed necessitates this rotation check.

Please check the direction of the Motor pulley. It is important that the direction is in accordance with the directions. If this is not the case serious damage can be the result. NOTE! Motor rotation check must be performed at compressor start up. As needed, remove compressor panel to view motor rotation.

2. For DMD machines without a Frequency Inverter • Open the outer panels of the Compressor so that the moving parts are visible. • Initially switch on the machine and immediately select the emergency stop button. Incorrect Airend rotation can lead to sever damage if left for longer than approx’ 2 seconds. • The rotation of the Airend is illustrated in red on the pulley belt protective plate. For each particular airend type a chart has been created below (Table 1). • By incorrect airend rotation direction, swap (Phases L1, L2). • Add the outer panels back onto the Compressor. Any tampering of main Electrical feed necessitates this rotation check.

After the electrical wiring has been completed, it is necessary to check the direction of the motor rotation. First, see the POWER-On light is on. This light indicates that there is power at the starter. Then, checking can be done by pressing "I" (START) button. When looking at the motor from the pulley side, the shaft should be turning counterclockwise. But if the air-end model is FS26, the motor should turn clockwise. (Check the sticker on the motor) If the motor turns on the wrong direction, disconnect the power to starter and exchange any two of the three power input leads then recheck rotation. A "Direction of Rotation" sticker is located on the motor to show correct motor/compressor rotation. (See Figure 2.2) CHECKING ROTATION DIRECTION - COMPRESSORS WITH ELECTRO MECHANICAL CONTROL Press the start button and check whether the phase relay coil lamp is illuminated, if when the button is released the lamp remains illuminated the Compressor is ready for use. If the lamp is not illuminated this means that the phases (R; S; T/ U; W; V) .are switched. (To be sure check the light on the motor protecton relay. If there is no light, change the phase sequence.) In this case, disconnect the unit from the Electrical network and switch the two phases. When certain that the Electrical connection is safe, try this one more time. If the lamp is illuminated, start the unit and check the direction of rotation.

Figure 2.2: DIRECTION OF ROTATION

CHECKING ROTATION DIRECTION - COMPRESSORS WITH ELEKTRONIC CONTROL Press start on the display. When there is no sign of error code: 0050 the Compressor is ready for service. If the display is not working or the code:0050 is visible, this means that the phases (R; S; T/ U; W; V) are switched. In this case, disconnect the unit from the Electrical network and switch the two phases. When certain that the Electrical connection is safe, try this one more time. If no code is visible and the display works, start the unit and check the direction of rotation.

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3. SPECIFICATIONS

3.1 TECHNICAL SPECIFICATIONS

DIAMOND SERIES TYPE DMD 30C DMD 30CR DMD 30CRD DMD 40C DMD 40CR DMD 40CRD DMD 55C DMD 55CR DMD 55CRD DMD 75C DMD 75CR DMD 75CRD DMD 100C DMD 100CR DMD 100CRD DMD 150C DMD 150CR DMD 150CRD DMD 200C DMD 200CR DMD 200CRD DMD 250C DMD 250CR DMD 250CRD DMD 300C DMD 300CR DMD 300CRD

CAPACITY (m3/min)

OIL QUANTITY (l)

7 bar

8 bar

10 bar

13 bar

NA

0.37

0.32

NA

2.2

NA

0.42

0.38

NA

2.2

0.62

0.57

0.5

NA

2.2

0.8

0.78

0.69

NA

2.2

1.18

1.1

0.95

0.75

3

1.75

1.65

1.4

1.15

3

2.7

2.5

2.05

1.7

6

3.2

3

2.6

2.1

6

3.9

3.55

3

2.6

6

5

3. SPECIFICATIONS 3.2 COMPRESSOR ROOM AND SET UP:

Figure 3.1 : DMD SAT ON A TANK (CR & CRD) COMPRESSOR ROOM AND SET UP

Figure 3.1 : DMD SINGLE (C) & DMD ON A TANK (CR & CRD) COMPRESSOR DIMENSIONS DMD COMPRESSOR ROOM AND CONNECTIONS Model (Main motor HP x 10) Motor rating (**) Dimensions, Length (U) x Width (G) x Height (Y) (**)Dimensions, (Tank, with Drier) U x G x Y Tank volume (Horizontal Tank for DMD) (**) Weight C (**) Weight CR (**)Weight CRD Air outlet connection dimension Compressor room Fresh air opening Air cooling Heat expulsion at full load Cooled air canal, minimum Exhausted air channel, loss of pressure Max’ Compressor roomvolume, minimum Electrical connection (380V, 3 phase, 50 Hz) TMS

PS*10 kW mm mm lt kg kg G m2 m3/h kcal/h m2 Pa m3 A

DMD Series (*) 30 2,2

40 55 75 3 4 5,5 753 x 506 x 725 1310 x 753 x 1365 270 120 125 138 145 237 242 255 262 262 267 281 290 1/2” 0,04 0,05 0,07 0,09 350 477 636 875 1610 2195 2925 4020 0,04 0,06 35 30 25 20 3 4 5,5 7,5 16 16 16 25

100 150 7,5 11 888 x 686 x 894 1840 x 686 x 1610 214 438 470

239 463 497 3/4”

0,12 1193 5485

0,18 1749 8040 0,13

25 10 25

20 15 32

200 250 300 15 18,5 22 940 x 790 x 1140 1840 x 790 x 1780 500 413 414 460 637 638 684 678 682 736 1” 0,25 0,30 0,35 2770 3023 3654 11300 13900 16800 0,24 40 30 20 20 25 30 40 40 63

* For DMD und DMD VST models, capacity,Operational pressure, Weight and other parameters which are not supllied in this manual can be found on the Type plate, please refer to 3.1 Technical Specifications. *These are Standard DMD dimensions and gross weight (mit ±5% Tolerance). These details were current when drawing uop this document, EKOMAK reserve the right to change details befiore communicating them. (TMS = Thermal-magnetic Switch)

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4. COMPRESSOR SYSTEMS 4.1 INTRODUCTION Your DMD oil injected rotary screw air compressor will provide you with improved reliability and greatly reduced maintenance.

4.2 DESCRIPTION OF COMPONENTS The complete compressor consists of an compressor unit, electric motor, starter, air inlet system, compressed air discharge system, oil/air separation system, compressor lubrication and cooling system, instrument panel, all mounted in a rigid cabinet. Where DMD VST compressors are concerned an Inverter has been built into the circuitry which manages the speed of the compressor. The main motor drives the Air end using a belt and the Air end compresses air sucked in through a suction valve, (together with a fine film of oil). This compressed air is forced through to the Separator tank, where the oil is separated from the air; the oil is fed through the cooler and back into the system. The air is forced through the minimum pressure valve and is also fed through the air side of the cooler and eventually into the network. A Fan draws air over the motor and forces warm air out through the oil/air cooler thereby removing the compression heat from the compressed air and the oil. The compact design of the DMD Series air compressor provides easy access to all serviceable components such as the fluid filters and control valves. The inlet air filter is also easily accessible for servicing.

4.3 COMPRESSOR UNIT, FUNCTIONAL DESCRIPTION Screw air compressors feature the compressor unit, a single stage, positive displacement, oil-injected-type air end. This unit provide continuous pulse-free compression to meet your needs. NOTE ! Due to Guarantee terms, the Air-end cannot be disassembled and serviced.

4.4 PRODUCTION OF COMPRESSED AIR The compressed air/oil mixture enters the receiver and is directed toward the bottom of separator element as the compressed air flows through the separator. The velocity of the mixture is reduced and the direction is changed. This allows oil to settle and to flow through to the bottom of the compressor. In this phase, the oil rate in the oil/air mixture is reduced. This mixture is directed to the separator filter. Separator, with its special form, holds the oil particles moving with the air separating the two. Some of the residue oil is returned to the compressor unit transported by the oil return (scavenge) line. A return (or scavenge) line leads from the bottom of the separator element to the inlet region of the compressor unit. Oil collecting at the bottom of the separator is returned to the compressor by a pressure differential between the receiver and the compressor inlet. A transparent tube shows oil flow in the return line. THIS FLOW MUST BE CHECKED PERIODICALLY. The life expectancy of the Seperator tank can be prolonged by regular inspections and regular internal pressure checks between P1 and P2. When the Compressor is running at full load the difference can not be less than 1,5 bar, if the difference is equal to or more the seperator tank must then be inspected. If the Compressor is often impacted by regular problems related to over pressure, safety pressure problems or problems with the Thermal Relay trip, the pressure loss must be checked in the Seperator tank. The Min pressure valve (MPV) is housed on the Separator Block and is responsible for keeping 4-4,5 bar operational pressure in the oil tank, when the Compressor is running at full load. This pressure is needed to separate the oil and to a good oil circulation. Min’ pressure valve prevents the return of pressurised air into the Oil tank. As the Compressor switches off or is run in idle mode. During the start sequence the Min’ pressure valve remains at an internal pressure value between (3,5 -4,5 bar ) stays closed and prevents air passage to the external air piping. The safety valve on the Oil tank relieves high pressure in the tank when the internal pressure becomes too high (exceeds set values)

If during operation the Air-end reaches or exceeds a temperature of 115 ºC the Compressor will stop automatically.

WARNING !

DO NOT remove caps, plugs or other components when the compressor is running or pressurized. Stop compressor and release all internal pressure before removing a part.

4.5 COOLING AND LUBRICATION SYSTEM, FUNCTIONAL DESCRIPTION The cooling system consists of a fan, an oil/air cooler, fluid filter, thermal valve, interconnecting piping and tubing and separator tank. The pressure in the separator tank causes oil flow by forcing the oil from the high pressure area of the tank to a lower pressure area in the compressor unit. Oil flows from the bottom of the separator tank to the thermostatic valve. The thermostatic valve is fully open when the temperature is below 72 °C. Then the oil passes through the thermostatic valve, the oil filter and directly to the compressor unit when it lubricates cools and seals the rotors and the compressor chamber. As the discharge temperature rises above 72 °C, due to the heat of compression, the thermostatic valve begins to close and a portion of the oil then flows through the cooler. Oil flows from the cooler to main filter and then on to the compressor unit. A portion of the oil flowing to the compressor is routed to the anti-friction bearings which support the rotors in the compressor unit. Prior to entering the compressor unit, this oil is taken through oil filter, thus assuring properly filtered lubricant for bearing supply. The oil flow has three basic functions: 1. As coolant, it controls the rise of air temperature normally associated with the heat of compression. 2. Seals the leakage paths between the rotors and the stator and also between the rotors themselves. 3. Acts as a lubricating film between the rotors allowing one rotor to directly drive the other, which is an idler. After the air/oil mixture is discharged from the compressor unit, the oil is separated from the air. At this time, the air flows through the cooler, then to your service line while the oil is being cooled in preparation for reinjection. The oil separator tank has three basic functions: 1. Acts as a primary oil separator. 2. Serves as the compressor oil sump. 3. Houses the final oil separator. (See illustration 5.6 at the end of the Maintenance Chapter.)

4.6 AIR INLET SYSTEM, FUNCTIONAL DESCRIPTION The compressor inlet system consists of a dry type air filter and an air inlet valve as shown on Figure 4.1. The air inlet valve directly controls the amount of air intake to the compressor in response to the operation of the control solenoid valve. The inlet valve also acts as a check valve, thus preventing reverse rotation when the compressor is shut down.

AIR FILTER

INLET VALVE AIR END

Figure 4.1: AIR INLET SYSTEM

4.7. CONTROL SYSTEM, FUNCTIONAL DESCRIPTION. The functionality of the control system is explained in the operations manual. Please refer to the Operations Manual No 2.

7

5. MAINTENANCE 5.1 GENERAL INFORMATION WARNING! Before performing compressor maintenance, disconnect compressor from power source and isolate. Isolate compressor from line pressure by closing recommended discharge. shut off valve and be sure internal pressure has blown down to zero. When you make a service in the compressor and when a part is disconnected from the compressor, locked the emergency button. As you proceed in reading this section, it will be easy to see that the Maintenance program for the air compressor is quite minimal. Periodical checks and the service indicators will alert you when service maintenance is required. Read carefully before the maintenance and take care that the maintenance should be performed by the authorized person. This will increase the lifetime of your compressor. MAINTENANCE BY THE UNAUTHORIZED, NON-TRAINED PERSONS AND/OR WORKSHOPS WITHOUT PROPER ENVIRONMENT WILL VOID THE WARRANTY AND MAY CAUSE INJURIES AND ACCIDENTS.

5.2 DAILY OPERATION Prior to starting the compressor, it is necessary to check the oil level in the separator tank. If the level is low, simply add the necessary amount. (To run the compressor absent and insufficient oil, can increase the oil temperature and damage the air-end.) If the addition of the oil becomes too frequent, a simple problem has developed which is causing this excessive loss. See the Troubleshooting Section under Excessive Oil Consumption for a probable cause and remedy. During start up, observe controller display for working pressure and be sure it monitors the correct reading for this particular phase of operation. After the compressor has warmed up, it is recommended that a general check on the overall compressor and controller be made to assure that the compressor is running properly. WARNING ! DO NOT remove caps, plugs or other components when compressor is running or pressurized. Stop the compressor and relieve all internal pressure before removing a part. NOTE ! If there is oil near the compressor, clean it to avoid glide on the surface. Also keep inside the compressor always clean. Do not use harmful cleaning materials.

5.3. PERIODIC MAINTENANCE 1. MAINTENANCE AFTER INITIAL 50 HOURS OF OPERATION CHECK THE BELT TENSION USING A BELT FREQUENCY TESTER:

(The initial tension must be checked by an authorised service technician.) EVERY 50 HOURS OR (WEEKLY) 1. 2. 3. 4. 5. 6.

CHECK THE OIL LEVEL WHEN NEEDED FILL EMPTY THE CONDENSED WATER: CLEAN THE FILTER VAINS WITH LIGHT AIR: CLEAN THE SUCTION FILTER MATS. CLEAN THE AIR FILTER * CHECK FOR ANY SIGNS OF LEAKAGE AROUND THE INTERNAL COMPONENTS 7. CHECK THE WAY THE BELT IS SECURED IF THERE ARE SIGNS OF DAMAGE AND OR TOO TIGHT TOO LOOSE; CORRECT THE PROBLEM OR CALL THE SERVICE TEAM. (**)

EVERY 1000 OPERATIONAL HOURS 1. CHECK THE CONTROL AIR PIPING WHEN NEEDED REPLACE: 2. CHECK THE CONTACTORS CONTACT AND OPERATION WHEN NEEDED REPLACE: 3. REPLACE THE DUST FILTERS (FILTER MATS). 4. CLEAN THE FILTER VAINS NOT WITH FLAMMABLE MATERILAS 5. CHECK THE PRESSURE TOLERANCE; IF THE AIR/OIL ELEMENT IS BLOCKED REPLACE. 6. CLEAN OR REPLACE SUCTION AIR FILTER & SUCTION FILTER MATS: 7. CHECK ALL OIL DELIVERY PIPES AND CONNECTIONS; 8check for leaks).

EVERY 2000 OPERATIONAL HOURS 1. 2. 3. 4.

CLEAN THE RETURN LINE STRAINER. REPLACE OIL FILTER ELEMENT AND GASKET: REPLACE THE O-RING OF THE OIL FILL SCREW. CHECK ALL OIL DELIVERY PIPES AND CONNECTIONS WHEN NEEDED TIGHTEN: 5. CHECK ALL ELECTRICAL CONNECTIONS; WHEN NEEDED REPAIR & TIGHTEN . 6. CHECK ALL SCREWS WHEN NEEDED TIGHTEN 7. CHECK THE WAY THE BELT IS SECURED IF THERE ARE SIGNS OF DAMAGE AND OR TOO TIGHT TOO LOOSE; CORRECT THE PROBLEM OR CALL THE SERVICE TEAM:

5.4. REPLACING COMPRESSOR OIL If the oil gets dirty and lose its specification, the oil circulation is affected. Insufficient oil circulation and absent oil could increase the oil temperature which can damage the air-end block. Please change the oil according to the section 7, tabelle 2. In dirty ambient conditions, change the oil earlier than recommended. 1. Shut the Compressor down. And wait at least 3 minutes before you disconnect from oil receiver. 2. Open the Oil cap on the Oil drain tap, close the tap and direct the waste oil pipe into an old Oil container. Drain the oil. 3. Remove the old Filter. 4. Pour what is left of the oil into the container. 5. Add the new Oil filter . 6. Close the oil tap and tighten the Oil cap. 7. Open the oil fill point and pour in the correct volume of Oil. (Refer to point .3.1 Technical Specifications – Oil volume) NOT: The special discharge hole on the oil fill plug avoids bounding of the plug. Remove the plug slowly after the pressure inside the oil receiver is discharged completely. 8 Now close all taps and screws and start the Compressor, check for any leaks.. 9. Do not touch the Oil this can be hot.

WARNING ! During oil change and airend unit change, you have to add oil to the airend through air inlet valve. The oil quantity is mentioned in section 3 (page 4) technical details page.

5.5. OIL FILTER MAINTENANCE

(*) Air filters can be cleaned using pressurised air (max.2 bar & dry air). Direct the air from inside direction outside so as not to damage the filter, keep a distance of 10 -30 cm

Replace your oil filter element and the gasket under any of the following conditions, whichever occurs first: 1. Every 2000 hours (This could be shorter in dusty environments) 2. Every 6 months 4. Every fluid change.

(**) If there is oil on the belt, it should be cleaned. Otherwise the belt could be hot and damaged due to slip. Additionally this could cause a fire danger.

To not replacing the oil filter on time cause high oil temperature which can damage the air-end block.

WARNING !

8

5. MAINTENANCE 5.6 CHECKING OIL SEPARATOR 1. Replace the seperator element at the end of 6 months or 2000 running hours, whichever occurs first. 2. If the pressure differential value before oil seperator and after is more than 1.5 bar replace the element. Due to its design, it is not possible to clean the element. When this is blocked the differential pressure (between Operational and internal pressure) rises, which will lead to a Compressor stop triggered by the Safety pressure valve. NOTE: If Original parts are not used, this can lead to damage and irregular service requirements.

5.7 PARTS REPLACEMENT AND ADJUSTMENT PROCEDURES There is a spring in the MPV, thermostatic valve and safety valve of the compressor. Be careful when disconnecting these parts. The spring can bound to your body (The safety valve is stamped with a seal, do not try to open safety valve and do not change the settings.)

A - OIL FILTER ELEMENT REPLACEMENT (Figure 5.1) 1. 2. 3. 4. 5. 6.

Stop the Compressor and ensure that the pressure has been released. Using a strap wrench, remove the old element and gasket. Clean gasket sealing surface. Clean the connecting surface of the Oil filter. Apply a light film of oil onto the new gasket. Add oil through the upper surface of the filter element. Hand tighten new element until new gasket is seated in the gasket groove. Avoid any nicks, cuts or pinches to the gasket. Restart compressor and check for the leaks. WARNING !

To minimize the possibility of filter element rupture, it is important to use original replacement elements ONLY and appropriate part number. If original replacement elements will not be used, it may cause inadequate or questionable working pressure ratings.

SEPARATOR

OIL FILTER

Figure 5.2: AIR FILTER

C - AIR FILTER ELEMENT INSPECTION 1. Place a bright light inside the element to inspect for damage or leak holes. Concentrated light will shine through the element and disclose any holes. 2. Replace the filter when damage is found. 3. Inspect all gaskets and gasket contact surfaces of the housing. Should faulty gaskets be evident, correct the condition immediately. 4. If the clean element is to be stored for later use, it must be stored in a clean container. 5. After the element has been installed, inspect and tighten all air inlet connections prior to resuming operation

D - SEPARATOR ELEMENT REPLACEMENT (Refer to Figure 5.1 and 5.3.)

Follow the procedure explained below for separator element replacement: 1. Relieve all pressure from the separator tank and all compressor lines. 2. Use a strap wrench; remove the old element and gasket. Clean the gasket groove. 3. Add a film of oil to the new element gasket. 4. Hand tighten new element until new gasket is seated in the gasket groove. Avoid over tightening as this can damage the gasket and any nicks, cuts or pinches to the gasket. 5. Clean the valve block opening, oil return lines and non return valve 4. Restart compressor and check for the leaks.

SEPARATOR & THERMOVALVE BLOCK MIN PRESSURE VALVE

Figure 5.1 : OIL FILTER AND SEPARATOR

B - AIR FILTER REPLACEMENT Air filter element replacement should be performed every 6 months or every 2000 hours. If the filter element needs to be replaced, order the this element. Replace the air filter element as described below. 1. Stop the compressor. 2. Clean exterior of air filter housing. 3. Release the screw on the Jubilee clip.. 4. Remove element and clean interior of housing using a damp cloth. DO NOT blow dirt out with compressed air. 5. At this time replaced the element. 6. Reassemble in the reverse order of the disassembly.

Figure 5.3 : OIL TANK & ELEMENT

E- SERVICING THE OIL RETURN LINE: (Figure 5.3) During Oil/Air separation a small amount of Oil is collected in the Oil separator. This is then returned in the return circuit. When the Compressor is running full load this Oil should be visible when looking at the Transparent return tube. If, due to blockage or corrosion the return line is blocked, this will lead to a steady continuous reduction of Oil in the Oil tank. If Oil residue is visible around the Air filter or the Oil volume seems to be dropping immediate action should be taken to ensure that the return line and all associated components are clean and when needed replaced.

9

5. MAINTENANCE

F - CONTROL SYSTEM ADJUSTMENT (Refer to Figure 5.4) Prior to adjusting the control system, it is necessary to determine the desired operation pressure range and also the maximum pressure at which your compressor is to operate. The pressure must not exceed the maximum operation pressure which is stamped on the compressor serial number plate. Start the compressor with the shut off valve nearly closed (or slightly cranked open). Compressor will change running condition from on load to off load (unload). Provide reducing alternations between these two running conditions by slightly opening the shut off valve. Observe pressure value on the controller display. When the line pressure reaches the set pressure, the controller must unload the compressor. If unloading pressure value (max. working pressure) is not the desired pressure value, working pressure upper (unloading pressure, max. working pressure) and lower (loading pressure) limits must be adjusted as it is described on controller manual. A PRESSURE SWITCH IS A SENSITIVE COMPONENT; INCORRECT ADJUSTEMENT CAN LEAD TO DAMAGE. FOR PRESSURE RANGE (MAX. WORKING PRESSURE) ADJUSTMENT 1. There are two adjustment screws on the pressure switch for high and differential values of the working pressure ranges. The screw on the right hand side-when looking from the front of the switch is the high pressure setting screw. Turn the screws gently during adjustment. 2. If the compressor runs unloaded under required pressure, turn screw counterclockwise slightly up to reach desired pressure. NOTE: COMPRESSORS WITH ELECTRONIC CONTROL ARE REGULATED USING SENSORS AND DO NOT HAVE A SWITCH; ADJUSTMENTS MUST BE MADE USING THE CONTROL PANEL.

Please refer to the User Manual 2 for DMD und DMD VST model Ekomak compressors with electronic control

G- BELT REPLACEMENT AND ADJUSTMENT 1. 2. 3.

4. 5. 6.

7. 8.

9. 10.

11. 12. 13.

To replace the belt please perform the following. Stop the compressor and disconnect and isolate all power at source. Unscrew the belt guard. Release tension of the belt by loosening belt tensioning studs/bolts on the base frame which move the separator tank by its mounting legs. (After slightly slacking bottom mounting bolts of the separator tank.) Slowly turn the belt and remove it. Be careful to not trap your fingers between belt and pulley. Check the pulleys alignment with each other using a sufficient approved laser measuring device. Put in place a new belt of the same model as the original. Both the belt and the pulley have grooves equally. Ensure that these grooves correspond. Give some tension by tightening tensioning bolts. Adjust the belt tension and measure belt tensioning (natural frequency of belt tension) frequency by Contitech VSM-1 or equivalent device. Ensure the frequency value is equal to the reference value which is given on Section 3, “Specifications” page of this manual. If measured frequency value is the bigger than reference value, readjust the belt tension by slacking; otherwise, readjust the belt tension by stretching. Tighten the bolts of the separator tank for fixing it to the base frame. After the adjustment with the proper measuring tools, it is necessary to check surfaces of both pulleys for alignment. In order to adjust pulley alignment, mounting bolts of the separator tank must be slacked and the tank must be moved/turn to required position then mounting bolt must be tighten. Tighten counter nuts of belt tensioning bolts on the base frame. Mount the belt guard. Reenergize the compressor and start it. Check the alignment, if necessary.

Belt tension checking (and adjusting if it is necessary) is important to prevent early wear and break out of the belt. The belt should be re-tensioned after the first 50 running hours and the tension should be checked for every 500 hours.

Differential is the difference between the high and low pressure settings. Here, ‘high’ means unload or maximum working pressure value while ‘low’ means load or minimum working pressure value. Differential is set to run compressor on-load at desired pressure. After setting the maximum working (unloading) pressure of the compressor, using the ‘Range’ adjustment screw, the diffential pressure is set by using ‘Differential’ adjustment screw. If the compressor loads before desired pressure, the differential adjustment screw should be turned on clockwise gently to widen the differential. The screw should be turned on counter clockwise to reduce the differential value.

DANGER !

Oil Separator Tank

It is not permitted to touch cables or contacts with metallic objects. Do not leave the pressure switches internal components exposed, cover the components with the plastic casing at all times

Tensioning Bolts Fixing Bolts

Figure 5.5 : BELT REPLACEMENT AND TENSIONING POINTS

Figure 5.4: Working & safety pressure switches

MEASURING OF THE BELT TENSIONING FREQUENCY BY USING MEASURING DEVICE: 1. While the compressor is not running, locate the probe at about 2 cm distance from middle top surface of the belt. 2. Direct the light of the probe onto the belt surface while vibrating middle of the belt by using finger or a proper tool. 3. Device displays the tensioning frequency as Hertz (Hz) unit. That is „Natural Frequency of Beltspan“ value and it must be equal to the reference value. If the measured frequency value is bigger than the reference value, the belt tension is more than required, if the measured frequency value is smaller than the reference valuıe, it is less than required (slack).

10

5. MAINTENANCE 5.8.A SERVICE INSTRUCTIONS FOR THREE- PHASE MOTORS 1.

When the motor has not been used for a prolonged period of time, the following work must be performed before start up Inspect the bearings and renew the grease, if necessary

2.

When operating the motor at rated voltage and rated output, the motor temperature rise at a maximum ambient temperature of 40 ºC must not exceed

3.

Check data on the rating plate. The voltage marked on the rating plate must be in agreement with the main voltages.

4.

Specifications VDE 0580 and VDE 0100 require that all motors to be earthed properly. Please use the special terminal in the terminal box for this purpose.

5.8.B

SEALANT–USAGE PROPERTIES ( LOCTITE)*

NO

COLOUR

243

BLUE

: For connections that can be undone.

542

RED

: To seal connections with 3/4” Diameter .

577

YELLOW : To seal connections with OVER 3/4” Diameter.

(*) Ekomak uses Loctite and equivalent product of the same quality can be used for servicing needs.

5. MAINTENANCE

11

AIR FILTER

ANSAUGREGLER INLET VALVE ÖLFILTER OIL FILTER ELEMENT

SEPARATOR ELEMENT

VERDICHTER STUFE

THERMOVENTIL THERMOVALVE

AIR END

ÖLRÜCKLEITUNG ÖFFNUNG

T1 BELT

P2 ÖLBEHÄLTER SEPARATOR

M1

HAUPTMOTOR KÜHLER

MAIN MOTOR

COOLER

T1: Screw Air-end external temperature P2: System pressure (Demand)

Figure 5.6 : PIPING & EQUIPMENT LAYOUT

5. MAINTENANCE

12

5.9 INVERTER MAINTENANCE AND INSPECTION FOR ALL VST COMPRESSORS Daily inspection: Check the following items with the system fully operational. 1.

2. 3. 4. 5.

The motor should not be vibrating or making unusual noises. There should be no abnormal heat generation. The ambient temperature should not be too high. The output current value shown on the monitor display should not be higher than normal. The cooling fans on the inverter should be operating normally.

Periodic inspection: Check the following items during periodic maintenance. 1. 2.

Always ISOLATE the power supply before beginning the inspection. Confirm that the LED indicators on the front cover have all EXTINGUISHED, and then wait until the time stated on the yellow label has elapsed before beginning the inspection. Be sure not to touch terminals directly after the power has been turned off. Doing so can result in electric shock, due to capacitive charge.

Parts External terminals, mounting bolts/screws, connectors Cooling fins PCB’s

Cooling fans Power elements

DC Capacitors

Checks Are all screws, nuts and bolts tight? Are connectors tight?

Remedies Tigthen loose fittings firmly. Reconnect/tighten the loose connectors.

Are the cooling fins dirty or dusty?

Clean off any dirt or dust using an air gun with dry air, max. 6 bar. Clean off any dirt or dust using an air gun with dry air, max. 6 bar.

Is there any conductive dirt or oil residue on the the PCB’s? Prevent ESD (Electro Static Discharge) when working with Electronic equipment. Is there any abnormal noise or vibration? Or, has the total operating time exceeded 20000 hours? Is there any conductive dirt or oil residue on the the PCB’s? Prevent ESD (Electro Static Discharge) when working with Electronic equipment. Are there any irregularities, such as discoloration or odor?

Replace the cooling fans. Clean off any dirt or dust with an air gun using dry air, max. 6 bar. Replace the DC capacitors of the inverter.

Periodic maintenance of parts: For the inverter to optimally perform its function all of its associated components must be fully functional. Apart from electrical/electronic components, there are components which also require maintenance depending on conditions. To sustain normal inverter operation, it is necessary to perform periodical inspections and when necessary replace parts according to their service life. Periodic inspection requirements vary depending the inverter’s installation, environment and use. The inverter’s maintenance periods are listed below. Keep them as reference Part Cooling fans DC capacitors Fuse (charging resistor) Aluminium capacitor on PCB

Replacement Interval 3 years 5 years 5 years

Replacement Method Replace with new parts. Replace with new parts. Check during maintenance. Replace with new board. Decide during inspection.

NOTE:

•

•

Inverter maintenance is valid only for EKO VST, EKO DVST and EKO GDVST series screw air compressors. Inverters (Frequency converters) are not used in other type EKO compressors .

Please check terminals of the components, which are located on the circuit. (Frequency, main motor, choke, HF-Filter)

. TROUBLESHOOTING 6.1 INTRODUCTION

The information contained in the troubleshooting chart is based upon both the reports about actual field applications and extensive testing

13

done at the factory. It contains symptoms and usual causes for the described problems. However, DO NOT assume that these are the only problems that may occur. All available data concerning the trouble should be systematically analyzed before undertaking any repairs or component replacement procedures. A detailed visual inspection is worth performing for almost all problems. Doing so can prevent unnecessary damages always remember to :

3. Check for parts damaged by heat or an electrical short circuit, usually apparent by discoloration or a burnt odor.

WARNING ! Only trained qualified personnel should work on Ekomak Compressors. Ensure that the compressor is electrically disconnected and isolated from compressed air network. Release all internal pressure!

1. Check for loose wiring. 2. Check for damage piping.

6.2 TROUBLESHOOTING SYMPTOM

POSSIBLE CAUSE A Voltage problem. B Line CB tripped. Phases incorrectly connected C (ONLY WHERE PHASE RELAYS

HELP Check the supply . Check the breaker

Where Electronic control is concerned, error code 0050 should be displayed on the display and the orange light on the phase relay will not be illuminated. The Motor protection relay breaks the supply. Check whether the orange light is illuminated. Could be a result of Phase sequence failure, low voltage. It is often the Low incoming line voltage or case that the problem dissappears. Check the relay as the Compressor switches to incorrect Star/Delta, if the light goes off and the machine stops, low voltage or defective relay could be the root cause. Frequency regulator (VST) or Control Look at the display, and record any fault codes. Refer to the VST manual or report to Ekomak service teams. system could be defective Record the fault code and refer to the Controller handbook where all fault codes Compressor has stopped due to fault can be found. Earth and or Neutral are incorrect or Neutral must be connected to "MP" in the Control panel and the Earth point to the earth connection ( ) not connected at all. Ensure by referring to the table below that the cable size is large enough for the Cable diameter too small. required voltage and current ARE USED )

1

Compressor does not start

D

E F G A

B Low incoming line voltage

To be certain measure the voltage before starting and measure as you start. If the voltage is lower than 360 the problem could be with the Energy external.

When surrounding temp’ is (under +5ºC or less) the Oil can become thick, which leads to sluggishness. Ensure that the area is above +5ºC. The Compressor starts before Internal When the Compressor stops a hiss of Air is heard, wait until the hiss has stopped D or look at the display screen and watch the air dissipate. pressure is released. The Inlet valve remains open during 1st start and closes during Star/Delta. Wenn the Inlet valve does not close a Mechanical Problem is suspected. (The Control systems air could not close the valve.) E The Inlet valve could be defective.

C Ambient temperature low.

2

The Compressor starts with difficulty

Release all pressure and see whether the valve can be moved easily. When not call for a service team. When the Min pressure valve (MPV) is defective and air is allowed to return the Compressor tries to start with opposing pressure and is then over capacity Try starting the Compressor without demand and check the internal pressure The Min. pressure valve could be on the display. If internal does not rise or remains very low this means that the F defective. MPV cannot handle the Air. Stop the Compressor , wait until the air has been released from the machine. Dismatle the MDV and check the seal and Orings. If they are damaged replace them Mechanical Problem with Motor or Disconnect from the supply: Check whether you can easily turn the pulleys, if G Airend not call Ekomak- Service.

6. TROUBLESHOOTING

14

SYMPTOM

3

The Compressor does not build pressure does not run on load

POSSIBLE CAUSE

HELP

The Compressor does not switch to A Star/Delta (Star/Delta Motor start Fault)

When the Compressor is fitted with a Standard control panel Star-Delta Relay could be at fault or icorrectly set(ZR1). Check that the setting are set at (ca. 6 Seconds). Switch the Compressor on and check the LED on the timer relay. When the 2nd LED, does not lilluminate at the end of Star time the relay could be defective.

B The Inlet valve could be defective

The valve could be obstructed

C The MPV might be defective

Read HELP 2-F

D Solenoid valve might be defective

Check to see whether a signal is being received at the Solenoid valve. If this is possitve, does the valve make a strange noise, if so the membrane may be defective. If there is no starnge noise the coil might be burned out.

E

The Control –Pressure switch might be defective elektro mechanical Bethenpanel Compressors Electronic Control system might be defective

A

THE COMPRESSOR CAN NOT 4 REACH THE MAXIMUM OPERATION PRESSURE.

When the Compressor does not load and the Load Lamp does not display Pressure switch or cable could be damaged. Check and replace Check that Contactor K2 allows current flow Check that current flow is achieved through associated relays. Does SV1 have a signal, when not the Control system needs replacing.

Close the external connection tap and take the Compressor to max’ load, System Air demand is higher than the when max’ is reached does it switch to unload. If this happens, the system Compressors max’ demand is too high for the Compressor..

B There are leaks in the pipes

Check for leaks when you are sure that demand has not changed.

C Air filter element is dirty or blocked..

The Operating temperature of the Compressor has risen over normal limits. Stop the Compressor check the suction filter when it is dirty replace the filter.

D The Inlet valve might be defective.

The Inlet valve does not open fully, stop the compressor and try to move the valve. If there is resistance contact Ekomak-Service.

E

Mechanical problem with the Airend.

Call Ekomak-Service

Where elektro mechanic controlled Compressor are concerned the Check the settings of the Pressure switch, when the set pressure has been Pressure switch might be defective or reached the Pressure switch should change contact position. If the contact the settings are incorrect. positions do not change the Pressure switch could be defective . A Check Compressors with Electronic control , the settings are visible in the For Electronic Control systems the display window. Max’ pressure setting might be incorrect.

5

The Compressor exceeds set Pressure (does not unload) B The Inlet valve might be defective. (read 9 symptom)

Usually when the Inlet valve does not open fully, stop the compressor and try to move the valve. If there is resistance contact Ekomak-Service.

C Solenoid valve might be defective

Read HELP 3-D

D Leakage in the Pneumatic system

Check all connections and tighten when necessary

6. TROUBLESHOOTING

15

SYMPTOM

The Compressor is 6 using too much oil or is losing oil.

Overload relay stops the Main 7 Motor .

POSSIBLE CAUSE

A Oil return is blocked.

During load check that Oil is flowing through the oil return. When this is not the case clean the lines with wire and check again. You should see after 10 – 15 Seconds oil flowing and after 15 Seconds foaming oil in the pipes. Check agin in 15-20 Minutens.

B Oil seperator is damged

If the Oil return line is working correctly it is possible tha Seperator element is damaged. You should see oil mist or oil in the expelled air.

C Possible Oil leaks

Check all connections and tighten when necessary and call Ekomak-Service.

A

Motor problem or Einspeisungsfehler incorrect operational pressure

B

Settings Overload relay are incorrect or relay is defective.

8

Read HELP 2-B

D The Compressor exceeds set pressure

Read HELP 5.

E Seperator element might be blocked.

If the internal pressure (P1) and demand (P2) is not 1,5 the Seperator element is blocked and must be replaced.

F The Airend might be damaged..

Excessive noise from the Airend. Call Ekomak- Service.

Overload relay settings are incorrect or Relay is defective.

Filter mat , cooler is blocked or air B channel is closed. (Problem with the Warm air)

Overload relay of the fan motor stops Compressor. C Air motor might be damaged.

Compressor stops due to over 9 pressure (Read Article 5)

Do you have error code (E.OC or E.OL) . Incorrect Operational pressure or unnecessary mechanical stress on the Motor. This could be due to bearing problems or very tight belt. Check the Overload relay and the Main Motor at Nominal power and that the Main Motor and current are correct. Check the ciurrent at full load that the relays have the correct current ratings. If the Overload relay opens too early it is defective. If the Compressor has Electronic Control system (or VST ) , Refer to the manual the Control systems . (2. Manual operation”)

C Low incoming line voltage

A (Compressors with Fan motor…)

HELP

Where electro mechanical units are concerned the Pressure switch might be defective or the settings are A incorrect. Where Electronic Control systems are concerned the Max‘ pressure might be incorrect Where electro mechanical units are B concerned the settings of the safety Pressure switchs might be incorrect.

Check the current of the Overload relay and compare with the settings if the settings are in line with the values, replace the relay. Check that the Compressor is ventillated sufficiently change the Filter matts and clean all matting and cool elements. Remove all panels and let the Compressor vcool. After a period check to see whether the fan works if not the bearings might be damaged or the fan might be burnt out. Call the Ekomak-Service.

Read HELP 5-A.

Check the settings of the Pressure switchs . When the set pressure has been reached the contacts of the Pressure switch should change. If the contact does not change the switch is defective

C Min pressure valve does not open

Check seals and O-Ringe of the the Min pressure valves – Replace when necessary

D Seperator element might be blocked.

Read HELP 7-E

E

The external air tap might be closed.(external to compressor )

Open this.

6. TROUBLESHOOTING SYMPTOM 10

HIGH

POSSIBLE CAUSE The settings in the contact A thermometer or sensor migh be incorrect

HELP Check settings on both components and amend if necessary. Replace components when necessary

16

TEMPERATURE FAULT STOPS THE COMPRESSOR.

B Ambient temperature is high C

Air flow and cooled air flow is not sufficient

D Oil level too low E Öil filter is dirty F Oils qualities have deteriorated

EXCEEDED WORKING PRESSURE. SAFETY 11 PRESSURE SWITCH (P1) STOPS THE COMPRESSOR.

G Suction filter is dirty . H Dust filter is blocked.(Fite rmat) The cooler veins or air rills are I blocked or dirty The air expulsion channel is too long J or obstructed K Thermostatic valve defective. With elektro mechanical controlled Compressoren the Pressure switch might be defective or the Settings A might be incorrect.

Check the enough ventilation so that the compressor does not increase the temperature of the room The suction canal might be smaller than the Compressors of the cooling infrastructure might not be sufficient for the Compressor. Is sun shining on the room or unit. Take measures to cool the room. Check and fill Check and replace Check the colour of the Oil . (Dark in colour or thin in texture.) When the Oil has been changed when detailed, check environmental factors such as temperature, damp etc. Replace when necessary Replace or clean when necessary Check and clean, when this does not help Call the service team. This cannot be smaller than the exhaust duct of the Compressor when this is the case or reducing factors are apparent, take action.

Change the repair kit of the thermostatic valve.

Read HELP 5-A ve 9-B..

With Electronic Control system the pressure settings could be incorrect B C D E

Seperator element is blocked.. The Inlet valve might be defective. Solenoid valve might be defective

Read HELP 7-E. Read HELP 5-B. Read HELP 3-D.

When the Safety valve opens below the set value it must be replaced. Safety valve is defective The set value of the Overload relay Check the value of the Overload relay. A (Main motor) is too low.

The Compressor stops when it 12 nears max. pressure.

IT IS UNABLE 13 TO STOP THE

COMPRESSOR

B The Compressor over demand

The Set value of the Contact thermometers or max.Temperature C Set value of the Electronic Control system is too low The Temperature of the D Compressors is extremely high.

Check the feed of Main Motor and Differential pressure at full load. If the feed is too high check the supply. Check as in Article 2-G details, if there is a Mechanical Problem with the Motor or the Airend. If the Differential pressure of the seperator is too high, replace the Oil air element. Check the Set value.

Check the working temperature at full load and follow Article 10

With electro mechanical controlled Compressors Timer relays for idle is Timer relay (ZR2) is defective or the Set value is incorrect try the set value defective or settings are incorrect. for 4 Minutes. Does the Compressor go to idle, Switch to auto mode and check the LED on the timer relay if the LED does not blink or change colour A when the time has been reached the relay is defective. Change the control With Electronic Control system system. Electronic Control system is

defective or incorrectly set The Compressor switches to load B before the set time.

If the unload is shorter than the set value of the ZR2 the settings are incorrect call Ekomak Service .

6. TROUBLESHOOTING SYMPTOM The Compressor runs at a higher 14 temperature as normal

POSSIBLE CAUSE HELP A There is not enough Oil in the system. Check and fill when necessary Check the temp around the Compressors. (Prevent high temperature in the B The room temperature is too high intallation area if it is possible.) Read HELP 10-C. C Heat exhausiont is not sufficient.

17

D The Cooler is dirty. E Suction filter is dirty or blocked. F The belt is loose or damaged. There are mechanical problems with the Airend. H Thermostatic valve is defective. I Temperature display is defective. G

The Temperatur 15 increases during idle run..

Blockage in Oil return line (pipe A ,opening , tubes ,etc) and oilf ilter .

A The connections are loose.

Compressor 16 is noisier than

B

normal.

The belt tension and/or belt setting is incorrect

Check and clean. Check, clean or replace. Check the tension. During the running of the Compressor loose belt and damage can be checked. (Refer to “MAINTENANCE , Point 5.7/G”) Does the Airend sound louder than normal. Call Ekomak-Service. Replace or call Ekomak-Service. Replace or call Ekomak-Service. During routine maintenance cleaning cloths etc are sometimes left within the machine. Fine particles of cloth etc can block the piping. Make sure all equipment is cleared once finished. When non original filters are used the construction can differ and lead to problems. If fine dust and or other fine particles are in the atmosphere this can clog the system.

During routine maintenance check all mechanical connections for security. Pay particular to parts that could be detrimental to safety (human and material) , like motor and air-end connections Read HELP 14-F. Shut down the Compressor and check the alignment of the pulleys with laser measuring equipment. The must be aligned . If this is not the case, align the pulleys. Check the bearings are replace if necessary.

C The Motor bearings are worn There could be a Mechanical Problem D Read HELP 2-G. with the Airend A The belt is loose or damaged The Compressor runs at full load B A Motor bearing problem is starting. 17 louder than normal situation C There could be a Mechanical Problem with the Airend. The Compressor A The Inlet valve ist defective. runs at idle louder 18 than in a normal B Blocked oil filter or return line situation Although the Compressor is at 19 idle the internal pressure does not sink.

Oil looses its 20 lubricating properties very quickly.

A Min pressure valve is defective. B The Inlet valve is defective.

The Solenoid valve is blocked or defective. D The Solenoid valve block is blocked The Compressor is running at too A high a temperature Incorrect oil has been used during B maintenance. C

C

Read HELP 14-F. Also check the belt teeth and replace if necessary Check the Motor bearing, Replace when necessary. Read HELP 2-G . The suction regulator which should bypass towards the airend is not working correctly. Call Ekomak-Service Read HELP 15. The Min’ pressure valve is allowing the network air back into the compressor. Replace the O-Ring seal and the Min’ pressure valve seal. The Inlet valve kann sich nicht vollständig schließen. Read HELP 5-B.

There may be an obstruction around the solenoid valve membrane. Clean around this component. Clean the the Pneumatic lines Read HELP 10. Check the oil. If another oil has been used, drain the system and re fill using the recommended oil. If the sympton persists cal Service

The Compressor is not run efficiently. Extend the idle running of the Compressors or call Service Is stopped to frequently.

6. TROUBLESHOOTING SYMPTOM The seperator 21 element is blocked frequently

POSSIBLE CAUSE Recommended Oil and original A Separator element has not been used The environmental humidity is too B high

HELP Please use correct parts. Lower the humidity in the immediate area.

18

C

The environment is impacting the Oil properties

D

The Compressor works at a higher Temperature than normal.

When the Compressors is to be used in an area where sand, dust etc is an occupational hazard, try to place the Compressor room in an area where the damage will be minimal If the Compressor is to be used in an area where the temperature will be higher than normal, take the life expectancy of the seperator into consideration.

E The Compressor is not run efficiently. Extend the running time of the Compressors or call Service. A The voltage is too low. Quick wear where the Contactor 22 contacts are concerned.

23

The belt damages very easily.

Read HELP 2-B.

If the time Delta starts is not as directed the RPM of the motor will not be The time between Star and Delta is too optimised. The result will be waer to the Contactor contacts, whic in turn B small. leads to chattering of the contacts and pitting. The Stern-Delta is 6 Seconds. Do not reduce this time. Only use original Contacts and parts The Compressor is started and stopped The recommended start and stops is set at 6. More leads to mechanical C too often problems and higher energy for more Informationen, ask the Service team. D The contacts are not original parts

Parts which are not original Ekomak Service .

A The setting of the belt is not correct

Call Ekomak - Service

B Belt tension is too tight or too loose

Read HELP 14-F und 17 . Call Ekomak - Service

C

The Compressor is running in high Call Ekomak - Service temperature and wearing environment

7. TABLES 7.1 TABLES FOR CABLE, FUSES AND CIRCUIT BREAKERS

CABLE AND THERMAL CIRCUIT BREAKERS (TMS)

19

* TYPE

KW / HP

CABEL DIMS

CIRCUIT BREAKER

DMD 30 C, CR DMD 30 CRD DMD 40 C, CR DMD 40 CRD DMD 55 C, CR DMD 55 CRD DMD 75 C, CR DMD 75 CRD DMD 100 C, CR DMD 100 CRD DMD 150 C, CR DMD 150 CRD DMD 200 C, CR DMD 200 CRD DMD 250 C, CR DMD 250 CRD DMD 300 C, CR DMD 300 CRD

2.2 / 3 2.2 / 3 3/4 3/4 4 / 5.5 4 / 5.5 5.5 / 7.5 5.5 / 7.5 7.5 / 10 7.5 / 10 11 / 15 11 / 15 15 / 20 15 / 20 18.5 / 25 18.5 / 25 22 / 30 22 / 30

4 x 4 mm2 4x4 mm +1.5 mm2 (N) 4 x 4 mm2 4 x 4 mm2 +1.5 mm2 (N) 4 x 4 mm2 4 x 4 mm2 +1.5 mm2(N) 4 x 4 mm2 4 x 4 mm2+1.5 mm2 (N) 4 x 4 mm2 4 x 4 mm2 +1.5 mm2 (N) 4 x 4 mm2 4 x 4 mm2 +1.5 mm2 (N) 4 x 6 mm2 4 x 6 mm2+1.5 mm2 (N) 4 x 6 mm2 4 x 6 mm2+1.5 mm2 (N) 4 x 10 mm2 4 x 10 mm2+1.5 mm2 (N)

16 A 16 A 16 A 16 A 16 A 16 A 25 A 25 A 25 A 25 A 32 A 32 A 40 A 40 A 40 A 40 A 63 A 63 A

2

C = Compressor, CR = Compressor and receiver, CRD = Compressor, receiver and drier

(*) Involves all DMD and DMD VST Series Compressors.

NOTE : 1 – ENERGY REQUIREMENTS SHOULD BE 380 V AC 2 – WHEN THE CABLE LENGTH IS LONGER THAN 50 METRES THE CABLE SIZE WILL NEED TO INCREASE DUE TO VOLTS DROP: 3 – THE CABLE MUST NOT BE DAMAGED WHAT SO EVER: 4 – DO NOT LINK OTHER COMPRESSORS FROM COTROL PANEL TO CONTROL PANEL

7. TABLES 7.2 MAINTENANCE INTERVAL AND SPARE PARTS EKOMAK COMPRESSORS – DMD SERIES

20

Synthetic Oil (AIRMAX 46) Mineral Oil (AIRMAX 2000) Air filter element Oil filter element Oil separator Element Hydraulic-Tubing Pneumatic-Tubing Kit Inlet valve Solenoid valve Kit, Contactors Kit , Min pressure valve Thermo valve - Element Oil fill screw O-Ring or Copper Washer Belt (teeth) Main motor bearings Repair kit Air-end Pressure sensor Temperature sensor Contact thermometer (*) Pressure switch adjustable (*) Safety Pressure switch

1000 Hours 2000 Hours or 6 Months 3000 Hours 4000 Hours 5000 Hours 6000 Hours 7000 Hours 8000 Hours or 1 Year 9000 Hours 10000 Hours 110000 Hours 12000 Hours or 18 Months 13000 Hours 14000 Hours 15000 Hours 16000 Hours or 2 Years 17000 Hours 18000 19000 20000 Hours or 30 Months 21000 Hours 22000 Hours 23000 Hours 24000 Hours or 3 Years 25000 Hours 26000 Hours 27000 Hours 28000 Hours or 42 Months 29000 Hours 30000 Hours 31000 Hours 32000 Hours or 4 Years

MAINTENANCE INTERVAL & SPARES

X X X X

X X X X

X X X X

X X X X X

X X X X

X X X X

X X X X

X

X

SERVICE OPERATIONS Check – Oil level Check & clean air filter-Element Check operational status Load/Unload Check for air & oil leakage Check oil return line Check screws & all electrical connections Check the belt and teeth

Clean the cooler Check screws & all connections Oil leaks check the sealing rings of the Air-end Check if the safety valve is working properly (*)

X

X

X X X

X

X X

X

X X X X X X X X X X X X X

X X X X

X X X X

X X X X

X X X X X

X X X X

X X X X

X X X X

X

X

X

X

X

X

X

X X X X

X

X X X X X X X X X X X X X X

X X X

X X X

X

X X

PRIOR TO EVERY NEW START EVERY 1000 OPERATIONAL HOURS EVERY 1000 OPERATIONAL HOURS EVERY 1000 OPERATIONAL HOURS EVERY 1000 OPERATIONAL HOURS EVERY 1000 OPERATIONAL HOURS EVERY 2000 OPERATIONAL HOURS EVERY 4000 OPERATIONAL HOURS EVERY 4000 OPERATIONAL HOURS EVERY 8000 OPERATIONAL HOURS EVERY 16000 OPERATIONAL HOURS OR 2 YEARS

RECOMMENDED SPARE PART LIST FOR STOCK

Solenoid valves Contact thermometer (**) Temperature sensor Pressure sensor Pressure switch adjustable (**) Kit , Inlet valve Kit, Contactors Kit , Min pressure valve Belt (teeth)

The service could differ depending on environment and use of the Compressor.

(*) Should be checked by authorised people. If needed it should be changed with an original, CE certified safety valve. (**) These parts ,only for electro mechanical Control system

Lifespan of the Compressors: The lifespan of the Compressors is according to Industrial Goods’s Aftersales Service Legislation 10 Years. “Ekomak commit to deliver spares for their Compressors for at least 10 Years after Invoice date. “

8. PROCEDURE FOR ORDERING PARTS

21

Only order spares through EKOMAK stockists and dealers where the Compressor was purchased and delivered. The parts contained within the EKOMAK parts list are designed to prolong the life of the Compressors. The use of components which are not recognised by EKOMAK can present operational risks, which is not the responsibility of EKOMAK. Using such components can lead to a garantee void. When ordering spares always give the model and serial number. These can be found either on the Type plate or on the delivery note.

PLEASE READ THE PARTS LIST FOR ILLUSTRATIONS & SPARE PARTS LIST FOR YOUR EKO COMPRESSOR

The information in this manual is general information. Please revert back to EKOMAK A.S. or your authorised EKOMAK dealer for detailed information when it is required. ………………………………………………………………………………………………..………….

TURKEY EKOMAK A.Ş. ŞERİFALİ MAH. KUZEY YAN YOL SÖYLEŞİ SK. NO:41 ÜMRANİYE 34775 İSTANBUL/TÜRKİYE TEL : +90 216 540 11 33 (10 Hat) Fax: +90 216 415 41 39 E-Mail: [email protected] Web Sitesi : www.ekomak.com.

GERMANY

EKOMAK GmbH Eurotec-Ring 15 D-47445 MOERS-GERMANY TEL : +49 (0) 2841 16954 25 : +49 (0) 2841 16954 26 Fax : +49 (0) 2841 16954 30

RUSSIA

EKOMAK Moskow OOO “EKOMAK” Olimpiyskiy Prospekt, D.46, Korpus 3 g.Mytishi, Moskovskiy Region 141006, MOSKOW-RUSSIA

MAINTENANCE RECORDS 22

MAINTENANCE - DOCUMENTATION DATE

OPERATIONHOURS

TYPE OF MAINTENANCE

WORK CARRIED OUT BY

CHECKED BY

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