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A - Oil level and change (see fig. 19)
(see B Section 1)
The recommended oil used for the first compressor fill up is a
mineral oil with the following properties :
- viscosity: 40 cSt at 104 °F
- viscosity index: 90 minimum
- antioxidant additives
- anti-rust additives
- anti-foam additives
THE FIRST OIL CHANGE MUST BE CARRIED OUT
AFTER THE FIRST 500 HOURS OPERATION.
Using a synthetic oil for compressors is also acceptable and means
less frequent oil changes: please speak to us about the compatibility
and oil change methodes.
The oil change and the replacement of oil filter must be carried
out when the indication is seen on the electronic controller and
when the corresponding time counter reaches "0" (refer to
electronic plate manual Section 1 E ).
Drain the compressor when warm. In order to do this, stop it and
make sure you disconnect the electric supply and close the
compressor outlet valve. Loose the filling plug by one turn to
depressurise the receiver in case of component failure. Open the
bleeding valve and drain it. Do not forget to close the valve after it
has been drained.
After maintenance, a reset has to be done on the counter which
indicates the number of remaining hours before the next oil change
see the specific notice on the electronic controller.
OIL LEVEL (Fig. 10)
When stopped, the MAX level of oil is ¾ of the way up from the
bottom of the indicator; the MINI level is at the lowest visible
part of the indicator.
Fig. 10 - Oil level
Oil level
Drainage
Chicago Pneumatic Compressors
62 305 454 65
THE OIL LEVEL HAS TO BE CHECKED AFTER STOP
AND WHILE THE COMPRESSOR IS STILL WARM
(THERMOSTATIC VALVE OPEN).
NOTE
If the oil is in poor condition: i.e. it gives off an acrid smell or
contains particles of varnish or other solids, the system will have
to be rinsed out: pour in around 50% of the normal clean oil con-
tents, run the set for 3 hours and carefully drain. During rinsing,
leave the former oil filter cartridge in place.
B - Air filter (see Fig. 11,
The air filter is a dry, encapsulated type. In standard conditions of
use, change the cartridge every 2 000hrs. This can be done through
an easy access from the front panel. Check the cleanliness of the
filter every week and change it if necessary.
IMPORTANT
If you do not replace the filtering element when needed, per-
manent dirt build-up will result. This reduces the air inflow to the
compressor and could damage the oil separator and the
compressor.
C - Turbine
Replacement of the complete fan is recommended if one or more
blades are deformed or broken If replaced, check the fan rotation
direction reversal of the rotation direction will reduce machine
cooling.
D - Oil and air cooler
The aluminium oil and air cooler is a vital part in the CP
Compressors system. Please take care of this element. To prevent
the nest of tubes from being deformed or damaged, when
assembling or disassembling the cooler unions and hoses, the
cooler sleeves' must be kept rotating by means of a wrench. The
outer surface of the nest of tubes must always be kept clean in
Filler plug
order to enable proper heat transfer. In the event of a leak, the
source of the leak must be detected. In order to do this:
- Stop the CP Compressors.
- Clean the greasy areas.
- Look for leaks using conventional means (soap solution, ...).
see B Section 1)
Fig. 11 - Air filter
01/2008
Page 21
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