Komatsu PC5500-6 Operation & Maintenance Manual page 182

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3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
Fault No. 1052:
(1055)
Help:
Fault No. 1058:
(1061)
Help:
Fault No. 1064:
(1067)
Help:
Fault No. 1070:
(1073)
Help:
Fault No. 1076:
(1079)
Help:
Fault No. 1082:
(1085)
Help:
Fault No. 1088:
(1091)
Help:
182
$h:
Swing ring gear lube system failure
Lube cycle is not performed at the given time.
- Check lube system for defects.
- Check lube times.
$h:
Swing ring gear lube system failure
The lube lines are not relieved at the given time.
- Check valve Y9 and pressure switch B46.
- Check lube times and injectors.
$h:
Faulty pressure switch of gear oil filter for
PTO gear 2
Closed contact of pressure switch B27-2 for PTO-gear
lubrication filter 2 with switched OFF engine.
- Check pressure switch and connected cables.
$h:
Faulty pressure switch of fan drive oil filter for oil
cooler 2
Closed contact of pressure switch B28-2 for cooler fan
drive filter with switched OFF engine.
- Check pressure switch and connected cables.
$h:
Faulty pressure switch of fan drive oil filter for cool-
ant radiator 1
Closed contact of pressure switch B21-1 for radiator fan
drive filter with switched OFF engine.
- Check pressure switch and connected cables.
$h:
Faulty pressure switch of fan drive oil filter for cool-
ant radiator 2
Closed contact of pressure switch B21-2 for radiator fan
drive filter with switched OFF engine.
- Check pressure switch and connected cables.
$h:
The ECS is by-passed
- Reset by-pass switch S27.
- Remove bridge wires.
OPERATION

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