Farm Equipment - D17 Wiring?

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D17 Wiring?

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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=14745
Printed Date: 03 Feb 2025 at 8:09am
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Topic: D17 Wiring?

Posted By: BobHnwO
Subject: D17 Wiring?
Date Posted: 05 Jul 2010 at 8:57am

Is there just 2 wires on the amp gauge on a 1958 D17 gas,1 to the voltage reg.and 1 to the starter solenoid?If so why don't it show discharge when you turn the ignition switch and lites on?

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Why do today what you can put off til tomorrow.

Replies:

Posted By: dannyraddatz
Date Posted: 05 Jul 2010 at 9:27am

Could be a bad gauge, is it showing a charge?

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Danny Raddatz

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 10:33am

New gauge,didn't start it,workin on fuel tank.

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Why do today what you can put off til tomorrow.

Posted By: Brian Jasper co. Ia
Date Posted: 05 Jul 2010 at 11:05am

The ammeter must be between the battery and all electrical loads except the starter motor. The ammeter is there to show when current is flowing into and out of the battery. It depends on which polarity is used for ground as to which terminal on the meter goes toward the "hot" side of the battery. One terminal will go to the hot side of the battery and all loads, except for the starter motor, including the generator, are connected to the other side. Make sense?

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 11:09am

Manual shows 1 wire goin to starter solenoid,other wire goin to voltage reg.,wonder if voltage reg.is bad.

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Why do today what you can put off til tomorrow.

Posted By: Brian Jasper co. Ia
Date Posted: 05 Jul 2010 at 11:28am

The only way you will know if the voltage regulator were bad is if it won't charge and all other parts test good.

I'm looking at a schematic of a D17 and it looks like they have the ignition switch on the generator/load side of the ammeter. The lights and ignition switch have to draw current through the meter when the generator is not charging. The meter has one wire coming from the battery side of the starter solenoid. The ignition switch and everything else is connected to the other side.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 11:33am

The late D17 has a wire from starter switch to amp gauge,but early D17 don't show that wire?

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Why do today what you can put off til tomorrow.

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 11:35am

Just started the motor,gauge don't move.

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Why do today what you can put off til tomorrow.

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 11:47am

Does the voltage reg.have to be grounded?

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Why do today what you can put off til tomorrow.

Posted By: BobHnwO
Date Posted: 05 Jul 2010 at 11:56am

Correction,there is another wire supposed to go from amp to fuse then lite switch,this thing has been cobbled somewhat!!

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Why do today what you can put off til tomorrow.