Komatsu WA250-6 Shop Manual

Komatsu WA250-6 Shop Manual

Wheel loader
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WHEEL LOADER
WA250
WA250PZ
SERIAL NUMBERS
SEN03813-03
-6
-6
WA250-
75001
WA250PZ- 75001
and up

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Questions and answers

richard colbath
March 22, 2025

shift lever will not indicate nuetral, will not start

1 comments:
Mr. Anderson
March 22, 2025

The shift lever on a Komatsu WA250-6 may not indicate neutral and allow the machine to start due to the following reasons:

1. Directional switch is not in Neutral (N) – The system requires the FNR (directional) lever to be set in Neutral before resetting and allowing the machine to start.
2. KOMTRAX function prohibits engine start – The engine may be prevented from starting due to a restriction set by the KOMTRAX system.
3. Battery cable is not disconnected – If the battery cable is improperly connected, it may interfere with proper system operation.
4. Starting motor system or terminal C signal issue – The engine may not start because the starting motor does not run due to a fault in the starting motor system or the starting switch terminal C signal.
5. Blown fuse or grounding fault – If a fuse is blown, check the related wiring harness for grounding faults.
6. Defective battery or low voltage – The battery should have a minimum voltage of 25V and a specific gravity of at least 1.26.
7. Faulty battery relay – If the battery relay is defective, the machine may not start. A clicking sound from the relay when operating the starting switch indicates it is functioning.

These issues should be checked and resolved to ensure the shift lever indicates Neutral and allows the machine to start.

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This manual is also suitable for:

Wa250pz-675001

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