Failure Code [B@Hans] Hydr Oil Overheat; Failure Code [Ca111] Emc Critical Internal Failure - Komatsu PC210-8 Shop Manual

UEN00240-01

Failure code [B@HANS] Hydr Oil Overheat

User code Failure code
— B@HANS
Contents of
• While engine was running, signal circuit of hydraulic oil temperature sensor detected overheating of
trouble
hydraulic oil (above about 102°C).
Action of • Displays hydraulic oil temperature monitor with red on machine monitor.
controller
• If cause of failure disappears, system resets itself.
Problem that
appears on
• If machine is operated as it is, engine may be seized.
machine
• Hydraulic oil temperature sensor signal is input to engine controller and then transmitted to machine
monitor.
Related infor-
• Hydraulic oil temperature can be checked with monitoring function
mation
(Code: 04401 Hydraulic oil temperature)
• Method of reproducing failure code: Start engine.
Possible causes Overheating of hydraulic oil
1
and standard (when system is normal)
value in normal
Defective hydraulic oil tem-
state
2
perature gauge system

Failure code [CA111] EMC Critical Internal Failure

User code Failure code
E10
Contents of
• Memory or power supply circuit in engine controller is defective.
trouble
Action of
• None in particular.
controller
Problem that
appears on
• Engine does not start.
machine
Related infor-
mation
Possible causes
and standard
value in normal
1 Defective engine controller
state
22
Trouble
Cause
Trouble
CA111
Cause
Hydraulic oil overheat
(Pump controller system)
Standard value in normal state/Remarks on troubleshooting
Hydraulic oil may be overheating. Check it and remove cause if it is
overheating.
If cause 1 is not detected, hydraulic oil temperature gauge system
may be defective. Carry out troubleshooting for "E-10 Hydraulic oil
temperature gauge does not work normally" in E-mode.
Critical internal failure
(Engine controller system)
Standard value in normal state/Remarks on troubleshooting
Engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
40 Troubleshooting
1
1
PC210, 230, 240-8