Re: More on the Komatsu excavator

Posted by old on October 18, 2015 at 18:58:36 from (209.86.226.56):

In Reply to: Re: More on the Komatsu excavator posted by wijim on October 18, 2015 at 17:33:42:

The way this machine is it can not get only 12 volts since the batteries are hooked up in series.
This solenoid is a lot like an old Chev solenoid that had 2 big posts and one small post. When voltage is hooked to the small post it should pull the solenoid in and that in turn causes the starter to spin up.
But in this case it sort of spins up but the solenoid seems to make and break so the starter never gets up to full speed so in turn the engine does not start up.
Then when I jumped the small terminal to the starter motor side it started up when he held the ignition switch in the start position.

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