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Wayne, Journeyman
Category: Construction and Road Equipment
Satisfied Customers: 9452
Experience:  worked on many road graders, Bull dozers , skid steers, Rollers
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Have a wb 140 backhoewill not start, battery and strarter

Customer Question

have a wb 140 backhoewill not start, battery and strarter are good , if you turn key to on and then turn on lights, and then turn key to start the lights go out. ther is a noise coming from the electric box under the hood
JA: What is the complete model and serial number of your machine? Anything else you want the equipment mechanic to know before I connect you?
Customer: komatsu WB140-2T
Submitted: 6 months ago.
Category: Construction and Road Equipment
Expert:  Wayne replied 6 months ago.

Hi I'm Wayne

I will help you with this

What you are describing is the aux solenoid is failing

or there ia a poor ground to the engine frame

I suggest you remove all grounds ,clean and sand them

I hope this helped you

Hi If his helped you

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