40c neg ground
-
- MC crawler
- Posts: 4
- Joined: Sun May 31, 2009 10:54 am
40c neg ground
my 40 c has a neg grd and the gen. is not hooked up .If I make it a pos grd will that hurt the starter ?I would like to get it charging again also
Tom
- JD440ICD2006
- 350 crawler
- Posts: 1113
- Joined: Tue Aug 22, 2006 3:57 pm
- Location: South Carolina
Check the voltage regulator to see which orientation it is. Only if it is both POS and NEG can you run it the way you want. Otherwise, you must run the way that is stamped on the bottom of the VR.
For average usage, I don't think it will matter to the starter.
Be sure to polarize the generator after everything is hooked up correctly.
For average usage, I don't think it will matter to the starter.
Be sure to polarize the generator after everything is hooked up correctly.
1959 JD 440ICD w/64 Power Angle Tilt Blade
1959 JD 440ICD w/63 Manual Angle Blade
1959 JD 440IC w/602 Manual Angle Blade
1959 JD 730D W SE (many options)
1950 JD M S w/M-20 Mower
1952 JD M W
1955 FORD 640 (burns the most fuel)
1959 JD 440ICD w/63 Manual Angle Blade
1959 JD 440IC w/602 Manual Angle Blade
1959 JD 730D W SE (many options)
1950 JD M S w/M-20 Mower
1952 JD M W
1955 FORD 640 (burns the most fuel)
starter polarity
Several years ago I converted my old 6 volt Furgason tractor and 6 volt John Deere 420C from positive ground to a 12 volt negative ground with no conversion to the original starter. The only difference is they start much better. The reason that works is because they are not permanent magnet motors. When the current flow is reversed it reverses the magnetic field in the armature and the field so the motor still runs the same direction. Do be careful about the regulator and generator connections. I installed an automotive alternator. I know It doesn't look original but my equipment is to use not for show. I kept the old parts in case I ever sell it.
- JD440ICD2006
- 350 crawler
- Posts: 1113
- Joined: Tue Aug 22, 2006 3:57 pm
- Location: South Carolina
There is no contest between a generator/voltage regulator hook up and an alternator. We all know that an alternator charges great even at idle, and has it's own regulator.
With that said, I personally prefer originality. An alternator is an upgrade or more modern way to charge the batteries.
If I wanted to upgrade, I would not only cobble an old ugly alternator on to my tractors, but I would also add digital gauges, Xeon headlights, etc.
I run generators on all of my tractors and do not have charging or starting issues.
It is a personal preference but I never bought the excuse that generators would not do the job. If they are wired and set up properly, along with a good battery, they work.
On my M's, I still have 6 volt positive systems with cut outs. The correct switch is in the dash so I just need to change from high charge to low charge after running a while. To me, it is all about having antiques tractors.
With that said, I personally prefer originality. An alternator is an upgrade or more modern way to charge the batteries.
If I wanted to upgrade, I would not only cobble an old ugly alternator on to my tractors, but I would also add digital gauges, Xeon headlights, etc.
I run generators on all of my tractors and do not have charging or starting issues.
It is a personal preference but I never bought the excuse that generators would not do the job. If they are wired and set up properly, along with a good battery, they work.
On my M's, I still have 6 volt positive systems with cut outs. The correct switch is in the dash so I just need to change from high charge to low charge after running a while. To me, it is all about having antiques tractors.
1959 JD 440ICD w/64 Power Angle Tilt Blade
1959 JD 440ICD w/63 Manual Angle Blade
1959 JD 440IC w/602 Manual Angle Blade
1959 JD 730D W SE (many options)
1950 JD M S w/M-20 Mower
1952 JD M W
1955 FORD 640 (burns the most fuel)
1959 JD 440ICD w/63 Manual Angle Blade
1959 JD 440IC w/602 Manual Angle Blade
1959 JD 730D W SE (many options)
1950 JD M S w/M-20 Mower
1952 JD M W
1955 FORD 640 (burns the most fuel)
Who is online
Users browsing this forum: No registered users and 26 guests