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WD generator test? |
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KC/WD
Bronze Level Joined: 03 Nov 2009 Location: Kansas City Points: 81 |
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Posted: 02 Mar 2012 at 4:53pm |
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What is an easy way to test my original generator? I've noticed that it will not charge anymore with low or hi charge switch position.
Thanks,
KC
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I've got anal glaucoma, I just can't see my butt going to work today!
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stu(ON)
Orange Level Joined: 12 Sep 2009 Points: 377 |
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From an old post:
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Ted in NE-OH
Orange Level Joined: 12 Nov 2009 Location: Austinburg OH Points: 1703 |
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Don't forget it could be the cutout relay that is the problem. If it is a two terminal cutout, jumper it with the engine running and see if it charges then.
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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914
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Chalmersbob
Orange Level Joined: 11 Sep 2009 Location: Pennsylvania Points: 2122 |
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Just run a wire from the "F" post on the genny to ground. Use tractor frame or go to the battery ground wire. This should make the genny charge at full output. Bob |
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KC/WD
Bronze Level Joined: 03 Nov 2009 Location: Kansas City Points: 81 |
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Ok, y'all probably already know this but just to make sure I'm understanding this. Note, my battery is positive to ground, so easiest test is ground "F" terminal to frame or the ground on the battery, correct? This should peg out my amp metter.
Thanks,
KC
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I've got anal glaucoma, I just can't see my butt going to work today!
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skipwelte
Orange Level Joined: 29 Oct 2009 Location: Anthon, Iowa Points: 723 |
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Thats correct KC. Grounding the F/field terminal will make the generator charge to its maximum. If the cutout is bad it may not allow it to charge and show on the guage, so you should bypass it by using a jumper wire between the termals, but dont do that unless the generator is turning as it will show a large discharge on the amp guage. Good luck
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CTuckerNWIL
Orange Level Joined: 11 Sep 2009 Location: NW Illinois Points: 22816 |
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You might want to check the output at the genny before tearing into it. A bad wire anywhere in the circuit could cause the juice not to get to the amp meter or battery. Just because the gauge doesn't show a charge doesn't mean the genny is not working.
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http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
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KC/WD
Bronze Level Joined: 03 Nov 2009 Location: Kansas City Points: 81 |
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Generator diagnosis:
No charge at ALL with grounding "F" terminal! Looks like a rebuild is in it's near future, front bearing is sounding pretty rough anyway. This is the second time in four years I've rebuilt this genny. Is that normal???
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I've got anal glaucoma, I just can't see my butt going to work today!
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CTuckerNWIL
Orange Level Joined: 11 Sep 2009 Location: NW Illinois Points: 22816 |
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No. a good rebuild should last as long as the original. Where are you checking for a charge? As I mentioned before, you can NOT depend on the meter to tell you what isn't working.
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http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
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KC/WD
Bronze Level Joined: 03 Nov 2009 Location: Kansas City Points: 81 |
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CTucker, I am using the gauge for charge reference. With the tractor running, jumping the F terminal to battery ground, also jumping out the cutout switch.
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I've got anal glaucoma, I just can't see my butt going to work today!
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CTuckerNWIL
Orange Level Joined: 11 Sep 2009 Location: NW Illinois Points: 22816 |
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There could be a broken wire and the gauge won't tell you anything. Check it at the genny or use the motor test (see post above about removing the wires and the belt) to find out if the genny is any good before going any further. |
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http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
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KC/WD
Bronze Level Joined: 03 Nov 2009 Location: Kansas City Points: 81 |
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I see what you're saying and will do that final test. Thanks!
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I've got anal glaucoma, I just can't see my butt going to work today!
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norm[ind]
Orange Level Joined: 29 Oct 2010 Location: bourbon,ind Points: 2992 |
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IS THE GROUNDING SC REW IN THE BAT BOX??????????? COULD BE A BAD GRD.
ALL OLDER TRACORS ARE THAT WAY AC-IH-JD NEED GROUNDED
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Chalmersbob
Orange Level Joined: 11 Sep 2009 Location: Pennsylvania Points: 2122 |
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Remove the band and clean the comuntator with sandpaper, no emerycloth, check the brushes and brush springs. A broken spring will cause problems. The motor test is a good test. I also use a spare amp meter with a wire and alligator clip connected to it, with the tractor running, F terminal grounded, cutout disconnected. I connect the alligator to the A terminal on the genny and touch the other amp meter terminal to the neg post of the battery. This bypasses the tractor wring and just tests the genny. Bob
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stu(ON)
Orange Level Joined: 12 Sep 2009 Points: 377 |
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When you think that you have received all of the help that you can stand, read this old thread for the final word:
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