Gardner Denver L Series, Original User And Service Manual, Page: 48 / 60

13-25-639 v00 Page 47
DANGER
10.6 Changing the fine oil separator
Fig. 17
1 Oil filter cartridge
The changing intervals can be found in the
maintenance schedule.
Replace the oil filter cartridge as follows:

Switch off the screw compressor unit, secure it
against an accidental restart and ensure that it is
depressurized.

Wait at least 5 minutes until the oil has settled, i.e.
until the air has bubbled out.

Unscrew the oil filter cartridge (- 1 - Fig. 17) with a
suitable tool

Dispose of the oil filter cartridge properly

Lightly oil the seal of the new oil filter cartridge

Screw on the new oil filter cartridge and tighten by
hand (see the notes on the oil filter cartridge)

Let the screw compressor unit run for approx.
2 minutes

Check for leaks

Check the oil level (see Section 7.5)

If necessary, top up the oil.
Changing times for oil filter cartridges
Operating conditions (e.g., coolant temperatures), the
type of operation and the quality of the intake air (e.g.,
dust content, ratio of gaseous foreign substances such
as SO
2
and solvent vapors) have a strong influence on
the filter lifespan (air filter, oil filter, fine separator).
In these cases the intervals between changes may be
shorter
Fig. 18
1 Fine oil separator
2 Plastic oil extraction line
3 Plastic control air line
4 Oil extraction
5 Victaulic connection to the cooler
6 Victaulic connection to the pressure holding valve
7 Hexagon screw
8 Cheese-heads screw to raise the reservoir cover
9 Reservoir cover
CAUTION
Air/oil under pressure will cause severe
personal injury or death.

Shut down the compressor, relieve the
system of all pressure, disconnect,
lockout and tagout the power supply to
the compressor package before
removing valves, caps, plugs, fittings,
bolts and filters.
Fire hazard and slip hazard!

Do not spill any oil!

Look for leaks! Immediately take care of
any spilled oil!
NOTICE
Dispose of the fine separator properly - it is
hazardous waste! Look for leaks!