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Farmall & IHC Tractors Discussion Board |
Re: Farmall A No Start!
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Posted by Janicholson on February 26, 2007 at 09:31:21 from (199.17.6.122):
In Reply to: Re: Farmall A No Start! posted by plh_in on February 26, 2007 at 05:58:17:
The test is as follows.
With the solenoid in hand, connect the body of the solenoid (mount tabs) to the negative battery terminal with a jumper wire, or battery jumper cable. Connect the side of the solenoid that was connected to the battery + to the battery + with a wire, or jumper cable. Do not connect the starter end of the solenoid to anything. Get an ohm meter setup so it can be used between the two big terminals of the solenoid. Use a thin wire to energize the solenoid by connecting the bat + to the small S terminal of the solenoid. This will cause it to click loudly. Now measure between the two big terminals, There should be no resistance. The ohm meter should read zero, or less than .1 ohms. If it reads tens of ohms, it is bad. You can also test the resistance (momentarily) while actually trying to start it. The resistance should also be very low.
A starter draw gauge that is held against the heavy battery cables (cheap at the NAPA store) is a sure indicator of current to the starter.
What did they do to the starter? If they replaced the drive gear, and bushings, and brushes, then it should be OK. If it is jambed (Possible) put the tractor in High gear with the key off, and rock it back and forth violently. If the fan twitches, The starter is not jambed. If it was jambed, there will be a deep clicking as it comes out of being jambed. Good luck, JimN
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