PEM
II/11
GB
2.6.1 Before each maintenance
task
1. Switch off the petrol engine (see petrol
engine instruction manual) and allow the
compressor to cool.
2. Depressurise the compressor: using the
blow gun, blow out all pressure from the
vessel.
3. Detach the ignition cable from the spark
plug.
2.6.2 Cleaning the compressor
• Clean the cooling fins on the cylinder, cyl-
inder head and aftercooler using com-
pressed air.
• Clean the fan impeller cover on the motor.
2.6.3 Clean the filter pressure re-
ducer insert
1. Depressurise the vessel of the filter pres-
sure reducer.
2. Hold a suitable vessel under the conden-
sate drain. Drain condensate.
3. Remove the vessel of the filter pressure
reducer. Unscrew the mounting screw of
the filter insert by screwing anticlockwise
(Figure 4a).
4. Remove the filter insert, clean in soapy
water (max. 50 °C).
5. Installation is in reverse order.
2.6.4 Draining condensate from
filter pressure reducer
Draining semi-automatically:
Rotate the
condensate drain valve 1/4 turn anticlock-
wise. Under 1 bar: condensate drains. (Fig-
ure 4a)
Draining manually:
Rotate the condensate
drain valve clockwise and push it up. Con-
densate drains.
2.6.5 Draining condensate from
pressure vessel
L
Condensate is a water pollutant. Dispose
of it according to applicable regulations!
1. Place a suitable vessel under the conden-
sate drain.
2. To drain condensate, the pressure may
be no more than 2 bar.
3. Open the condensate drain valve
(item 09): rotate 1 1/2 turns anticlock-
wise.
4. Rotate the condensate drain valve clock-
wise to block it.
2.6.6 Checking the oil level
For compressors with an oil dipstick, pull the
dipstick out.
1. The oil level must be between the top
and bottom marks (oil dipstick/oil in-
spection glass) (Figure 7a).
2. Correct if necessary.
In very unfavourable conditions, condensate
may find its way into the oil. This can be
identified by milky oil. In this case, the oil
must be changed immediately.
2.6.7 Changing/adding oil
1. Allow the compressor to warm up, switch
it off, disconnect the power supply.
2. Pull out the oil filler plug or oil dipstick
(item 03), hold the used oil container un-
der the oil filler plug (item 04), screw
open the oil drain screw, drain used oil
completely.
3. Screw the oil drain screw closed.
4. Add the prescribed quantity of oil.
5. Check the oil level, correct if necessary.
Insert the oil filler plug or oil dipstick.
6. Dispose of used oil according to applica-
ble regulations.
L
As the mineral oil, we recommend Art. No.
B111002, synthetic oil Art. No. B111006.
Using incorrect oils shall void the warran-
ty.
Mixing synthetic and mineral oil can dam-
age the compressor!
1,000 h
After 2 years
Change oil (synthetic oil)
2.6.7
Change V-belts (where applicable)
2.6.10
2,500 h
After 5 years
Change safety valve
2.6.11
Interval
No later than
Tasks
See
chap-
ter
Summary of Contents for PEM 500-15-50 B
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