Komatsu PC5500-6 Operation & Maintenance Manual page 180

Hydraulic mining shovel
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3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
Fault No. 962:
(965)
Help:
Fault No. 968:
(971)
Help:
Fault No. 974:
(977)
Help:
Fault No. 980:
(983)
Help:
Fault No. 986
(989)
Help:
Fault No. 992:
(995)
Help:
Fault No. 998:
(1001)
Help:
Fault No. 1004:
(1007)
Help:
180
$h:
Control pressure X1-1 for the main pumps too high
- Check / adjust electronic pump regulation.
- Check / adjust pressure reduction valve.
$h:
Pilot pressure X2 too low.
- Check / adjust pressure relief valve.
$h:
Pilot pressure X2 too high
- Check / adjust pressure relief valve.
$h:
Swing gear house brake OFF
- Check solenoid valve Y5.
- Check pressure switch B16.
$h:
Travel gear house brake OFF
- Check solenoid valve Y16.
- Check pressure switch B48.
$h:
Travel gear house brake ON
- Check solenoid valve Y16.
- Check pressure switch B48.
$h:
Faulty monitor channel for onboard mains tension
The mains tension is beyond the permissible limits.
- Check monitor channel.
$h:
Board net voltage too high
- Check generator and regulator.
OPERATION

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