Failure Code [B@Crns] Hst: High Oil Temperature - Komatsu WA250-6 Shop Manual

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310 Troubleshooting by failure code (Display of code), Part 1

Failure code [B@CRNS] HST: High oil temperature

Failure code

• HST oil temperature higher than 105°C was detected for 10 seconds continuously.

• Turns central warning lamp and caution buzzer ON.

machine monitor

• Turns HST oil temperature caution lamp ON.

Problem that

• If machine is used as it is, hydraulic system equipments may be damaged.

• HST oil temperature can be checked with monitoring function.

(Monitoring code: MONITO PANEL – 04408 – HST OIL TEMP (°C))

(Monitoring code: MONITO PANEL – 04409 – HST OIL TEMP (V))

1 HST high oil temperature

Possible causes

and standard

Defective HST oil tempera-

value in normal

3 Defective machine monitor

WA250, 250PZ-6

HST: High oil temperature

(Machine monitor system)

System is normal.

a HST oil may be overheated. Remove cause of overheat.

If cause 1 is not detected, HST oil temperature sensor system may

be defective. Carry out troubleshooting for failure code [DGH1KX].

If causes 1 and 2 are not detected, machine monitor may be defec-

tive. Carry out troubleshooting for failure code [DGH1KX].

Standard value in normal state/Remarks on troubleshooting

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Wa250pz-6 75001