Posted by CapayMiller on June 08, 2020 at 22:08:38 from (38.102.44.1):
Hi all,
I acquired a solid JD 4010 last August to replace my beloved 4020 that was incinerated in a fire in June. The 4010 has a 12v alternator and 2 12v batteries, but benefits from a 24v starter which spins it like no one's business. Instant starts. The tractor has a Delco Remy 119845 1500A starter relay, that combines the 2 12v batteries to provide 24v to the starter, but reverts to 12v once running.
When I reassembled the dash after replacing the steering valve my electrics were non-functional. The original wiring was in pitiful shape, so I installed a new harness. All good, except for the one wire that controls the battery combiner relay. I stupidly failed to trace all the connections prior to disassembly, so am not sure where the signal that controls the combiner relay originated.
According to a diagram supplied by Texas Industrial Electric Co., the starter signal should go to Terminal 7 on the relay from BAT-A on the starter switch. When I do that, however, the relay doesn't energize and the 12v going through the starter isn't enough to start things. HOWEVER, when I connect to the ST terminal on the starter (key) switch, it spins and starts right up. However, for some reason the relay doesn't de-energize, so the starter continues to spin after I return the key to the "run" position.
According to the diagram, and helpful Sharpie numbers the P.O. put on the solenoid, everything looks connected appropriately to the terminals indicated in the TX Industrial wiring diagram. When I connect Terminal 7 to anything other than the ST terminal on the starter switch, I only get 12v to the starter. When I connect it to the ST terminal the starter spins with 24v, but doesn't stop spinning.
In the photos: The yellow wire is the signal wire from the starter switch, going to the "live" side of the relay. The red lead on the smaller terminal waist-high *should* be the trigger circuit to close the relay, and *should* go to BAT-A according to the Texas Industrial wiring diagram. However, I only get the relay closing (but not opening) when I connect the red lead to ST on the starter switch. All the leads in the 2nd photo (right side looking at the relay) lead to ground.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 ]
Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
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.
