Komatsu PC5500-6 Operation & Maintenance Manual page 184

Hydraulic mining shovel
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3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
Fault No. 1142:
(1145)
Help:
Fault No. 1148:
(1151)
Help:
Fault No. 1154:
(1157)
Help:
Fault No. 1160:
(1163)
Help:
Fault No. 1166:
(1169)
Help:
Fault No. 1172:
(1175)
Help:
Fault No. 1178:
(1181)
Help:
Fault No. 1184:
(1187)
Help:
184
$h:
Lubrication system failure of PTO gear 2
Oil pressure for lubrication of PTO gear 2 insufficient.
- Check lubrication oil pump and connected lines.
$h:
Pump back-up pressure X4-1 failure
Back-up pressure for pumps on engine 1 insufficient
- Check valve Y102-1.
$h:
Pump back-up pressure X4-2 failure
Back-up pressure for pumps on engine 2 insufficient.
- Check valve Y102-2.
$h:
Faulty pressure switch for pump
back-up pressure X4
One of the pressure switches B97 for X4 back-up pressure
is open with switched off engine.
- Check pressure switches B97-1 & B97-2.
$h:
Air cleaner of engine 1 restricted
- Clean or replace filter elements.
$h:
Air cleaner of engine 2 restricted
- Clean or replace filter elements
$h:
Faulty pressure switch for air cleaner of
engine 1
The pressure switch is closed with the engine switched off.
- Check pressure switches B18-1 & B19-1
$h:
Faulty pressure switch for air cleaner of
engine 2
The pressure switch is closed with switched off
engine.
- Check pressure switches B18-2 & B19-2
OPERATION

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