PRODUCT MAINTENANCE. EKOM DK50 2V, DK50 Plus Mobile, DK50 2V/M MOBILE, DK50 2V S, DK50 PLUS

PRODUCT MAINTENANCE

PRODUCT MAINTENANCE

16. PRODUCT MAINTENANCE

The operator should carry out device checks regularly in the intervals defined by applicable regulations. Test results must be recorded.

The device has been designed and manufactured to keep its maintenance to a minimum. For correct and reliable operation of the compressor perform the following operations:

Risk of servicing by persons without required qualification.

Repair works beyond standard maintenance (see chapter.16.1) may only be

performed by a qualified technician (organization authorized by the manufacturer) or manufacturer’s customer service.

Standard maintenance works (see chapter 16.1) may only be carried out by

a trained operator.

Only use spare parts and accessories approved by the manufacturer.

Risk of injury and damage to the device.

Before any maintenance work, it is necessary to:

- check, if it is possible to disconnect compressor from the supplied equipment, so that there is no risk of damage to a person using the given appliance or any other material damages

- switch off the compressor

- disconnect it from the mains (pull out the mains plug)

- vent the compressed air from the air tank

Risk of injury when venting the compressed air.

Protect eyesight – wear goggles when venting the compressed air from the compressor pneumatic system (air tank).

Risk of burn.

Pump components (head, cylinder, pressure hose) have high temperature during and shortly after compressor operation

– do not touch these components!

Let the device cool before any product maintenance, service or connection/ disconnection of pressurized air!

The removed grounding conductor during service must be connected back to the original position after completing the service.

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PRODUCT MAINTENANCE

16.1. Maintenance intervals user

Qualified professional

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16.2. Check of product operation



Check pump condition – the pumps must operate evenly without excessive vibrations or noise. If there is any negative result, find the cause of the given condition or call service engineers.



Check fans operation (visually) – the fans must be operating when the fans are running. If there is a negative result, look for the cause of the given condition or call service engineers.



Check if the power cord and pneumatic hoses are not damaged. Replace the damaged parts or call service engineers.



Check ambient temperature – ambient temperature must be below temperature limit (40°C).

Improve cooling in the room if the temperature is higher.



Compressor with air dryer - open the plug on the condensate collecting bottle and drain the condensate,

16.3. Check of pneumatic connections leakage and device inspection

Leakage check



Check pneumatic connections of the compressor when the compressor is operating – pressurizing.



Use a leakage analyser or soapy water to check all connections for leaks. Tighten or release the connection where leaks are found.

Device inspection



Check condition of the compressor pump – even operation, appropriate noise level.



Check fans operation – fans must be running in the defined cycles of the compressor operation.



Check function of the temperature switch (B2) – heat the temperature switch to temperature abov e 40°C (e.g. using a heat gun – Be careful, do not operate with high temperature on plastic components in the surrounding, it can cause deformation of plastic materials). Fan

EV1 (and EV2 for a compressor with dryer) starts up once the temperature reaches 40°C – the compressor must be under voltage.



Check filters condition – filters must be undamaged and sufficiently clean.



Check condition of the pump itself, check if there is no dirt inside the crankcase or clearance in the crankshaft.



Replace any defective parts if there are any failures.

16.4. Check of electrical connections

Risk of electric shock.

Check electrical connections on the device disconnected from the mains.



Check mechanical function of the main switch.



Check if the power cable and conductors are not damaged.



Visually check if cables are connected to the terminal box.



Check all screw connections of the green-yellow PE grounding conductor.

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PRODUCT MAINTENANCE

16.5. Condensate drain

Risk of slipping on a wet floor in case of the collecting vessel overflow.

Compressors without dryers

(Fig. 1 and Fig. 5) During regular operation is condensate automatically drained through automatic

drain (autodrain) which is catched into a condensate collection vessel. Pull the vessel out of the holder and pour out the condensate.

Compressors with air dryer

Condensate from compressors with air dryers is automatically drained into the condensate collection vessel.



Monitor the level in the vessel using the 1 l or

2 l markings (depending on the volume of the vessel), and empty at least once a day

Fig. 5: Check of condensate collection vessel

Before the following checks it is required:

16.6. Check of safety valve

When the compressor is operated for the first time, make sure that the safety valve is working properly.



Turn the screw (2) on the safety valve (1) several rotations to the left until the safety valve releases air.



Let the safety valve vent for only a few seconds.



Turn the screw (2) to the right until it seats, closing the valve.

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Fig. 6: Check of safety valve

Risk of pressure increase when safety valve is damaged.

Safety valve must not be used to depressurize the air tank. It could damage the safety valve function. The valve is set to the maximum allowed pressure, it is tested and marked.

Safety valve setting must not be adjusted.

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Risk of injury when compressed air is vented.

Protect your eyesight when checking the safety valve – wear protective goggles.

16.7. Inlet filter and pre-filter replacement



Pull out the rubber plug (2) by hand.



Remove the dirty inlet filter (1).



Insert a new filter and mount the rubber plug.

Fig. 7: Inlet filter replacement



Pull out the pre-filter by hand (3)



Replace the element and re-insert

Fig. 8: Inlet pre-filter replacement

16.8. Replacement of filter element



Remove the hose (1) from the quick connector.



Use a wrench (2) to release the filter vessel (3) and remove.



Pull down on the filter element (4) to remove.



Insert a new filter element.



Re-install the filter vessel.



Gently tighten the filter vessel with the wrench.



Re-install the hose on the quick connector.

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