Chicago Pneumatic HP 20, Руководство по эксплуатации и обслуживанию, Страница: 57 / 67

ENGLISH
.
Cod. 9828093300 00 - Vers. 04/2019 - 57
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 POSSIBLE CAUSES OBSERVATIONS
1) The machine won't start 1A - no electrical supply
1B - the transformer protection has tripped - check the electrical supply line Chap.
12.2
- replace the fuses
2) The machine won't start, the tell-tale
(Ref. 8 Fig. 15 – 15a) is flashing.
The intermittent pictogram appears (Ref. 7
Tab. B).
2A - phases inverted
2B - the main motor thermal relay protection
has tripped
2C – Screw compressor thermostat tripped
- check phase sequence
- check for any motor faults
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
3) The machine won't start, the tell-tale
(Ref. 8 Fig. 15
– 15a) is flashing.
The intermittent pictogram appears (Ref. 5
Tab. B).
3A - the oil temperature protection has
tripped
- 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
4) The compressor doesn’t reach the working
pressure
4A - the compressed air consumption in the
network is too high
4B - the loading/unloading solenoid valve
remains closed.
◼ ◼
- check the electrical system
5) Excessive oil consumption 5A - worn oil separator filter
- oil level too high ◼ ◼ - replace the oil separator filter
Chap. 23
19.2 TROUBLESHOOTING AND IMMEDIATE ACTIONS FOR SCREW COMPRESSOR (Graphic table for fixed speed and variable
speed compressors).
PROBLEM ENCOUNTERED POSSIBLE CAUSES OBSERVATIONS
1) The machine won't start 1A - no electrical supply
1B - the transformer protection has tripped
- check the electrical supply line Chap.
12.2
- replace the fuses
2) The machine won't start, the tell-tale
(Ref. 5 Fig.16) is flashing.
The intermittent pictogram appears (Fail
stop icon)
2A - phases inverted
2B - the main motor thermal relay protection
has tripped
2C – Screw compressor thermostat tripped
- check phase sequence
- check for any motor faults
- ambient temperature too high; improve
ventilation in compressor room Chap.
9.2
3) The machine won't start, the tell-tale
(Ref. 5 Fig.16) is flashing.
The intermittent pictogram appears (Fail
stop icon)
3A - the oil temperature protection has
tripped
- 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
4) The compressor doesn’t reach the working
pressure
4A - the compressed air consumption is too
high
4B - the loading/unloading solenoid valve
remains closed.
◼ ◼
- check the electrical system
5) Excessive oil consumption 5A - worn oil separator filter
- oil level too high ◼ ◼ - replace the oil separator filter
Chap. 23