Gardner Denver Screw Air Compressor VS55

Warning: Only replace the air intake filter when the screw compressor unit is out of operation, depressurized, and secured from being switched on again!

Important: Never operate the screw compressor unit without the air filter (even a short operating time without this filter can result in considerable damage to the machine)!

Is the red service field of the intake filter monitor visible and remains clicked into position while the screw compressor is out of operation?

Is the air filter cartridge replaced as specified in chapter 8.3.?

Is the air filter checked at least once a week or, if required, daily for the accumulator of dust?

When carrying out maintenance work, is it ensured that no dirt gets to the clean air side of the air filter?

Sign off on the air intake filter check

Changing intervals for air filter cartridge

The operating conditions (e.g. coolant temperatures), the operating modes and the quality of the intake air (e.g. content of dust, content of gaseous foreign matter such as SO2, solvent vapours, etc.) have a strong influence on the service life of the filters (air filters, oil filters, fine separators).

Where such conditions exist the filter element may require changing more frequently.

Change the air filter as follows:

• Pull snap latch outward and remove housing base.

• Detach air filter cartridge while slightly turning it.

• Carefully insert new air filter cartridge in the housing.

• Close air filter with housing base. The snap latches must click into position.;

Perform filter mat change as follows:

a) Filter mat, cooling-air inlet

• Remove fixing screws (- 2 - Fig. 27).

• Remove filter mat (- 1 - Fig. 27) and clean, exchange if damaged.

• Re-insert filter mat in sound insulating panel (- 3 - Fig. 27).

• Secure filter mat by means of fixing screws.

b) Filter mat of optional dryer

• Remove fixing screws (-5- Fig. 27) and remove cover plate (-4- Fig. 27).

• Loosen locknuts and remove filter mat of optional dryer (-6- Fig. 27) and clean or, in the case of damage, replace.

An empty LC unit or a fault on the lubricator is indicated on the compressor control by means of a message [Warning: Mot.lubr. sys] (also refer to the operating instructions for the compressor control GD Pilot TS).

Regularly check the level of grease in the transparent LC unit.

The necessary replacement of the empty LC unit is indicated by the red LED lighting up and the "LC" message being displayed on the lubricator.

This indication will only appear when the screw compressor unitʼs drive motor is running.

The drive system and control plate must be protected from dampness.

Procedure for changing the LC unit

* Unscrew the plug from the lubrication system and remove it.

Warning: Only change the oil when the screw compressor unit is out of operation, depressurized, and secured from being switched on again! Be careful when draining hot oil: Danger of scalding!

Important: Remove oil residues and other deposits from unit parts and from the coolers of compressors, which are exposed to hot compressed air, according to the operating instructions.

Note: Collect the waste oil, do not allow it to seep into the ground! Disposal in accordance with the regulations! Do not spill oil! Check for leakage!

With these compressors, the oil change intervals strongly depend on the degree of contamination of the circulating oil.

When changing the oil, the waste oil is to be drained completely, since used oil reduces the service life of the new oil fill considerably. Do not mix lubricating oils of different makes.

When changing over to a new oil type, the oil in the oil circuit must be drained completely.

For the oil change intervals, see maintenance schedule.

Switch the screw compressor unit off and ensure that it is depressurized, electrically isolate and locked off.

Slowly open the oil filler cap, to depressurize the screw compressor by releasing any residual pressure in the unit