B - Oil Return (Fig. 22); C - Air Filter (See B Chapter 1) - Chicago Pneumatic CPF 175 Instruction Manual

This Rotair Xtra oil was specially designed for Chicago Pneumatic
Compressors and guarantees to the operator an oil change period
of 2000 hours, with the replacement of the oil separator filter
after 6000 hours.
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 methods.
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 controller manual Chap 1 E ).
Drain the compressor when warm. For this, shut it down taking
care to disconnect the power cable. Release pressure in the tank
by unscrewing the filler plug by a single turn. Open the purge
valve and drain the oil. Do not forget to close the valve after
draining the oil.
After maintenance, reset the time counter which tells you how
long you have before the next oil change is due, refer to electronic
controler manual Chap 1 E.
OIL LEVEL
When shut down, the MAXI level of oil is located at ¾ from the
bottom of the indicator, the MINI level corresponds to the lowest
visible parts of the indicator (rep. 1 Fig. 21).
1
CHECKING THE OIL LEVEL MUST BE CARRIED OUT
JUST AFTER STOPPING THE MACHINE.
DRAINAGE UNDER PRESSURE
So as to carry out a quick and full oil change, your CP Compressor
is equipped with a system that allows low level pressure to be
maintained in the oil circuit. This pressure is shown by the pressure
gauge situated in the tank. (see Notice AIRLOGIC).
Proceed as follows :
• When hot, compressor in load for programming a shutdown under
pressure (refer notice AIRLOGIC § 4.9.3). The machine is
emptied and stops automatically.
• Change the oil by opening the oil change valve very slowly.
• As soon as the oil ceases to flow through the drainage orifice,
close the valve and top up with new oil,
• When there is no longer any residual pressure in the oil tank,
reset pressure drainage and then check the pressure drop at 0 PSI
and change the oil filter cartridges,
• Reinitialise the timers that will warn you when to carry out the
next oil change and the next oil filter change
(see the AIRLOGIC Manual - E chapter 1),
11/2008
Page 22
Fig. 21
• Reseal the filler cap when replacing it and check that all openings
are properly closed.
• The machine can be restarted only after pressing the button C
several times to return to STATE 0.1. Check the clamping of
connections.
• After restarting, check that there are no oil leaks.
NOTE
If the oil is in a bad state ; that is a pungent smell or contains
particles or varnish or other solid matter, the system will have to
be rinsed : pour about 50% or the normal contents of clean oil
and operate the unit for 3 hours and carefully change the oil. When
rinsing, leave the former oil filtering cartridges in place.
If you need to dismount the float-actuated oil level assembly, when
re-assembling make sure that the angle of the hex-head located in
the middle of the green area is directed upwards, in line with the
receiver.

B - Oil return (Fig. 22)

If the oil return pipe between the oil separator and the com-
pressor is blocked, the oil will accumulate at the bottom of the
oil separator and there is a risk of it being expelled from the
unit with the compressed air.
Under normal conditions, you should see the oil flowing though
the transparent tube when the compressor is operating under load.
If the oil doesn't move, stop the machine and check that the cir-
cuit is clean.
Fig. 22
C - Air filter
(see B chapter 1)
The air filter is of the dry, encapsulated type. Change the
cartridge every 2 000 hours. Check the cleanliness of the filter
every week and change it if necessary. (see notice on the
electronic controler for resetting the time).
ATTENTION :
If you do not replace the filtering element when needed, perma-
nent dirt build-up will result. This reduces the air inflow to the
compressor and could damage the oil separator and the
compressor.
Scavenge
tube
Transparent
tube
Chicago Pneumatic Compressors
62 305 799 65