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We reserve the right to make any alterations which may be due to any technical improvements
Printed in the USA
106R Cabinet Systems User Guide
6190759 (Rev B)
Disassemble the non-return valve and remove the O-ring (1) part
no . 6243000 from the piston .
Clean the non-return valve .
Mount a new O-ring and re-assemble the non-return valve .
Re-install the non-return valve .
h) Check the fans
Check that the fans at the back of the cabinet work . They
will start when the temperature exceeds 30°C and will run
continuously until the temperature falls below 30°C .
i) Check dryer
If a dryer is installed refer to the operating manual for the dryer .
Please note that all service must be carried out by a qualified
person .
Adjustment of pressure switch
The working presure has ben preset from the factory, and it is
normally not necessary to change this .
However, if it is necessary to change the preset settings, the
instructions mentioned below should be followed carefully .
Warning
The compressor is constructed and approved for a max.
pressure as stated under Technical Specifications - do not
adjust to a higher pressure.
Higher working pressure will reduce the lifetime of the
compressor.
The compressor will stop at max . pressure (stop pressure) and
start again at min . pressure (start pressure) . The difference
between max . and min . pressure is the differens pressure .
Unscrew the lid of the pressure switch . Adjust max . pressure
adjusting the two springs marked A (clockwise: higher pressure) .
Adjust the two springs identically .
Adjust the differens pressure adjusting the spring marked B
(clockwise: higher differens pressure, start pressure maintained) .
Test of pumping time
The pumping time indicates the condition of the compressor .
1 . Check that there are no leaks in the system .
2 . Empty the air receiver of compressed air so that the
pressure gauge shows 0 bar .
3 . Close the filter regulator and check that the drain valve is
closed .
4 . Start the compressor and note the time it takes until it is
turned off again by the pressure switch . Check that the
pumping time agrees with the technical specifications for
the actual compressor system .
Please note that the pumping time in this manual is given for 0 to
max pressure . Deviations from this result in deviating results .
Important
Always test the pumping time when cold. If the compressor is
warm, the pumping time will be considerably longer.
FAULT FINDING AND REPAIR
Important
Switch off and isolate from electrical supply before removing
any parts from the pump. Empty air receiver of air before
performing any operation on the compressors’ pressure
system.
1. Compressor does not start
a . The air receiver is pressurized . The motor will start when
the pressure has dropped to the preset start pressure .
Empty the receiver .
b . Check that the mains supply agrees with the motor
label .
c . No power from mains . Check fuses and plug .
d . Bad connection or broken cable .
e . The motor is overheated and the thermal protection
has switched it off . When cooled the motor will turn on
automatically . Go to section 5 .
f . The compressor has not been unloaded and there
is back pressure on the piston . Ensure that the
compressor is unloaded each time it stops .
g . The motor is blocked .
h . Defective capacitor .
2. The compressor makes a buzzing sound but does not start
a . Leaky non-return valve . Dismount the pressure pipe and
check if air leaks from the non-return valve . Clean and
replace .
b . The motor is blocked .
