(800) 853-2651
SHOP NOW

Reversed battery

H

hanspelmo

New User
I have inadvertely reversed my battery poles (in oter words STUPID error !!!) Both wire are black !

Anyways, I cranked it a bit before realising, then put them back in correct position. Tracktor will not start no more. It turn's but no start.

It is a 4 cyl Diesel David Brown tractor. There is no electronic on tractor.

Any idea ? Did I inject air in injectors or pump ? Would bleeding fix the problem ?

Please help !
 
if it didn't have a genny/reg, or an alternator, then you are likely ok.

pull start it if the battery won't do it.

soundguy
 
Might have fried the fuel shut off solenoid in the injection pump if it has one.
Listen/feel if it still works when ye turn the key
 
On a diesel hooking up a battery should not matter as for starting. On a gas it should not either unless you have electronic ignition. Now as for the charging system well that can be another story. If you have an alternator you stand a good chance that you let the smoke out of it. If a generator you have a 50/50 chance you smoked something there all depends on the set up some will and some will not take that
 
since the solenoid is a simply coil of wirte just liek the start relay.. it should be fine.. IF something like an old DB even has one.

soundguy
 
Check your fuses, if your fuel solenoid has a diode in it you would have had a direct path to ground with battery reversed. Fuses, switch, or wiring could have problems.

Frank
 
Your DB dealer or tractor mechanic have all seen this many times before and should be able to tell you what's most likely wrong over the phone.

Hopefully there is a big fusable link, fuse or circuit breaker that blows before the whole wiring harness completely melts. Follow the smoke, smell or look for melted insulation to find it. It should be close to the battery. Check if there is a wiring diagram in your operator's manual, it should show it too.

If it has an alternator you may have also fried the diodes in the alternator, but it would still start if that was all that was wrong.
 
Starter motors only go in one direction no matter what the polarity of the battery. Thus it didn't start because of some other reason (like fuel shutoff, or lack of fuel, lack of glow plug operation, or what ever.) Ask yourself why you needed to replace the battery. Was it because it ran the battery down trying to start it, or was it near dead from no charging system. Best of luck, Jim
 
I'd pull start it once you are sure the wires are correct. These tractors have notoriously temperamental electrical systems. I'd guess if the diode pack wasnt already blown it was by the wire reversal. Thats why you cant ever find a grill for one, everyone leaves them out so you can jump them easier. Lucas electronics, from the man who invented darkness......
 
OK, there's no way you cranked it backwards. Since it's a diesel, the problem must be fuel-related, unless the tractor has glow plugs (which I assume you would have already checked). The only common point between the electrical system and fuel system should be the fuel cutoff solenoid, so that's where I'd look. Like Offandgone said, there might be a diode in parallel with the solenoid. If so that diode is probably blown along with the switch or relay that activates the fuel solenoid.
 
Actualy,

There is not even a generator on this machine.
So I use a "fresh" charged battery when I want to run, which usually gets me around 10 decents crank starts.

It stalled because running in low rpm, bush hogger has hit a large chunk.

Battery was to weak to restart so I changed it.

I will investigate the gas option.

Thanks.
 
You must log in or register to reply here.

Similar threads

S
Old tractors with wrong dip sticks warning
Replies
5
Views
424
Papaw8
P
A
john deere 750 electrical
Replies
15
Views
2K
arbtmn
A
C
Ignitor Electronic Ignition
2
Replies
22
Views
2K
Indiana Ken
I
F
Reversed Battery Polarity
2 3
Replies
56
Views
5K
Dune Country
D
D
david brown 1200
Replies
1
Views
469
01gentdc
0
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.

Copyright © 1997-2024 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

Back
Top