Chicago Pnematic Compressors
11/2008
62 305 549 65
Page 25
19.0 TROUBLE-SHOOTING
ALL WORK MUST BE CARRIED OUT BY FACTORY AUTHORIZED PERSONNEL. BEFORE CARRYNG OUT ANY
MAINTENANCE IT IS MANDATORY TO STOP THE COMPRESSOR AND DISCONNECT IT FROM THE MAIN
POWER.
OPERATIONS
+
MUST BE CARRIED OUT BY FACTORY AUTHORIZED PERSONNEL
PROBLEM
POSSIBLE CAUSES
SOLUTION
1)
The compressor does not start
1A
- no power
1B
- the transformer protection device
has tripped
- check the power supply line,
Section 12.2
- replace fuses
2)
The compressor does not start
the pilot lamp Ref. 1 (F) flashes
(see Fig. A)
2A
- the main motor protection device
has tripped
- reset the automatic switch that
protects the fan
3)
The compressor does not start
the pilot lamp Ref. 2 (D) flashes
(see Fig. A)
3A
- the oil high temperature
thermostat has tripped
- ambient temperature too high;
improve ventilation in the
+ +
compressor room, Section 9.2
- cooler is dirty, clean the cooler
- oil level too low; top off the oil tank
4)
The compressor does not start
the pilot lamp Ref. 3 (E) flashes
(see Fig. A)
4A
- The fan motor thermal protection
has triggered
- Reset the fan motor thermal
protection.
5)
The compressor does not reach
working pressure
5A
- the compressed air consumption
is too high
5B
- the discharge valve remains
open, Ref. EV/SC wiring diagram
+ +
- check the electric system
6)
Excess oil consumption
6A
- deteriorated oil separating filter
6B
- oil level is too high
+ +
- change the oil separating filter,
Section 23
- drain some oil
FIG. A
1
2
3