Troubleshooting And Immediate Actions - Chicago Pneumatic HP 20 Use & Maintenance Manual

19.0 TROUBLESHOOTING AND IMMEDIATE ACTIONS

N.B. OPERATIONS MARKED BY ◼ ◼ MUST BE PERFORMED BY PROFESSIONALLY QUALIFIED PERSONNEL, AUTHORISED BY
THE MANUFACTURER.
ALL WORKS MUST BE PERFORMED BY PROFESSIONALLY QUALIFIED PERSONNEL AND THE MACHINE MUST BE
SHUT DOWN AND ISOLATED FROM THE MAINS POWER AND THE COMPRESSED AIR DISTRIBUTION NETWORK
BEFORE ALL SERVICING OPERATIONS.
19.1 TROUBLESHOOTING AND IMMEDIATE ACTIONS FOR SCREW COMPRESSOR (Standard table for fixed speed and variable
speed compressors).
PROBLEM ENCOUNTERED
1) The machine won't start
2) The machine won't start, the tell-tale
(Ref. 8 Fig. 15 – 15a) is flashing.
The intermittent pictogram appears (Ref. 7
Tab. B).
3) The machine won't start, the tell-tale
(Ref. 8 Fig. 15 – 15a) is flashing.
The intermittent pictogram appears (Ref. 5
Tab. B).
4) The compressor doesn't reach the working
pressure
5) Excessive oil consumption
19.2 TROUBLESHOOTING AND IMMEDIATE ACTIONS FOR SCREW COMPRESSOR (Graphic table for fixed speed and variable
speed compressors).
PROBLEM ENCOUNTERED
1) The machine won't start
2) The machine won't start, the tell-tale
(Ref. 5 Fig.16) is flashing.
The intermittent pictogram appears (Fail
stop icon)
3) The machine won't start, the tell-tale
(Ref. 5 Fig.16) is flashing.
The intermittent pictogram appears (Fail
stop icon)
4) The compressor doesn't reach the working
pressure
5) Excessive oil consumption
.
POSSIBLE CAUSES
1A - no electrical supply
1B - the transformer protection has tripped
2A - phases inverted
2B - the main motor thermal relay protection
has tripped
2C – Screw compressor thermostat tripped
3A - the oil temperature protection has
tripped
4A - the compressed air consumption in the
network is too high
4B - the loading/unloading solenoid valve
remains closed.
5A - worn oil separator filter
- oil level too high
POSSIBLE CAUSES
1A - no electrical supply
1B - the transformer protection has tripped
2A - phases inverted
2B - the main motor thermal relay protection
has tripped
2C – Screw compressor thermostat tripped
3A - the oil temperature protection has
tripped
4A - the compressed air consumption is too
high
4B - the loading/unloading solenoid valve
remains closed.
5A - worn oil separator filter
- oil level too high
OBSERVATIONS
- check the electrical supply line Chap.
12.2
- replace the fuses
- check phase sequence
- check for any motor faults
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
◼ ◼ - cooler radiator dirty; clean the radiator
- oil level too low; top up the oil tank
◼ ◼ - check the electrical system
◼ ◼ - replace the oil separator filter
Chap. 23
OBSERVATIONS
- check the electrical supply line Chap.
12.2
- replace the fuses
- check phase sequence
- check for any motor faults
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
◼ ◼ - cooler radiator dirty; clean the radiator
- oil level too low; top up the oil tank
◼ ◼ - check the electrical system
◼ ◼ - replace the oil separator filter
Chap. 23
Cod. 9828093300 00 - Vers. 04/2019 - 57
ENGLISH