Failure Code [B@Hans] Hyd Oil Overheat - Komatsu PC200-8M0 Shop Manual

SEN06133-00

Failure code [B@HANS] Hyd Oil Overheat

Action
Failure code
level
L02 B@HANS
q
Detail of While engine is running, overheating of hydraulic oil (above approx. 102 °C) is detected from signal
failure voltage of hydraulic oil temperature sensor.
q
Action of Displays hydraulic oil temperature monitor red on machine monitor.
q
controller If cause of failure disappears, machine becomes normal by itself.
Problem on
q
If machine is operated as it is, hydraulic components may be damaged.
machine
q
Signal of hydraulic oil temperature sensor is input to pump controller and then the data is transmit-
ted to machine monitor through CAN communication system.
q
Related Hydraulic oil temperature can be checked with monitoring function
information (Code: 04401 Hydraulic oil temperature)
q
See E-mode troubleshooting E-9 in "Hydraulic oil temperature gauge does not indicate properly"
q
Method of reproducing failure code: Start engine.
Cause
Overheating of hydraulic oil
1
(when system works properly)
Defective hydraulic oil tempera-
2
ture gauge system
18
40-301
Hydraulic oil overheat
Failure
(Pump controller system)
Procedure, measuring location, criteria and remarks
Hydraulic oil may overheat. Check it and remove cause if it overheats
If no failure is found by check on cause 1, hydraulic oil temperature monitoring
system may be defective. Perform troubleshooting for failure code [DGH2KB].
301 Troubleshooting by failure code, Part 1

Failure code [B@HANS] Hyd Oil Overheat

PC200, 200LC, 220, 220LC-8M0