Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum
:

H generator re-wired!!

Welcome Guest, Log in or Register
Author 
ryanfisher

03-27-2007 08:14:00




Report to Moderator

hey guys i got all the wiring replaced to my H and it is a magneto with optional battery start, so i followed diagrams and got new wiring everywhere, but my ammeter still isn't working. how much do one of these cost, and can it be the reason my lights arent working. i replaced all wiring to generator and everything else, so whats the problem? thanks for help




[Log in to Reply]   [No Email]
John T

03-27-2007 09:15:50




Report to Moderator
 Re: H generator re-wired!! in reply to ryanfisher, 03-27-2007 08:14:00  
Ryan, Did you wire her up per Bob M"s Wiring Diagrams?????

For an ammeter to work, in addition to it being good, it MUST be wired with its input SUPPLY TERMINAL leading to ONLY one location, that being the hot ungrounded battery post, often via a wire to where the big ungrounded battery cable atatches to the starter switch/solenoid. Then for it to properly register amps into it (charging) or amps out of it (discharging) its other LOAD TERMINAL wires to BOTH the BAT terminal on a Cutout Relay or Voltage Regulator PLUS any BAT input terminal on lights or ignition switch feeds.

An ammeter is like a dead short with extreme low resistance continuity between its Supply and Load terminal if its working and MUST be wired as described above so the battery power can get to and feed hot battery voltage to lights or ignition and the gennys output (via the BAT terminal on a Cutout Relay or VR) can get to n charge the battery. The lights cant work nor can the ammeter register correct UNLESS the light switch has a hot battery voltage feed from the ammeters load terminal (or the LOAD terminal on a 4 terminal VR) and the ammeters other Supply terminal gets to the hot ungrounded battery post voltage (usually at the starter switch).

If the lights BAT input terminal were wired to the ammeters supply terminal they can still work, but the ammeter wont be registering that current flow.

You gotta get hot voltage to the light switches BAT input terminal (from ammeter or BAT on a 4 terminal VR) and the switch to be closed and good to feed that voltage to the lights. Use a simple test lamp to trace down where youre gettign or loosing hot voltage.

John T

[Log in to Reply]  [No Email]
glennster

03-27-2007 08:55:40




Report to Moderator
 Re: H generator re-wired!! in reply to ryanfisher, 03-27-2007 08:14:00  
could be a bad light switch. the h's with the cutout relay have a l-h-d-b postion on the switch. l goes thru a resistor in the switch housing for low charge rate, high grounds the field directly for full charge. you may have bad grounds from the switch box to the tractor too. get a test light and start tracking down your power wires. try running a jumper wire from the battery to either of the lights and see if they light up. if not run a jumper ground wire from the lights directly to the battery. assuming you are positive ground, clip the + battery termional to the body of the lamp housing, then run a jumper wire from the - on the battery and touch it to the lamp where the power wire hooks up. if it lights, you have a ground problem

[Log in to Reply]  [No Email]
glennster

03-27-2007 08:54:03




Report to Moderator
 Re: H generator re-wired!! in reply to ryanfisher, 03-27-2007 08:14:00  
could be a bad light switch. the h's with the cutout relay have a l-h-d-b postion on the switch. l goes thru a resistor in the switch housing for low charge rate, high grounds the field directly for full charge. you may have bad grounds from the switch box to the tractor too. get a test light and start tracking down your power wires. try running a jumper wire from the battery to either of the lights and see if they light up. if not run a jumper ground wire from the lights directly to the battery. assuming you are positive ground, clip the + battery termional to the body of the lamp housing, the run a jumper wire from the - on the battery and touch it to the lamp where the power wire hooks up. if it lights, you have a ground problem

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy