(800) 853-2651
SHOP NOW

59 550 Diesel Voltage Regulator

TractorDad3

TractorDad3

Member
Greetings - I am wiring a 550 Diesel and the Operators Manual shows a different Generator/saddle-mounted Voltage Regulator diagram than the regulator I thought I correctly purchased. Serial number 79469 should have a VR with B F and L, according to the book, but I have a VR with the 3-terminal Batt F and GEN.
Does the GEN replace the L?
Also, does the A on the Generator need to be grounded with the voltage regulator?
How do I properly wire? Thank you very much for your help, I am having a tough time with the original wiring diagram.
 
Your regulator with B (Battery) F (Field) and L (Load or Lights) should also have an ARM or GEN terminal underneath. Battery is your battery connection, F to field on generator, ARM to ARM on generator and L supplies power to light switch. Ignition switch may power from L or Bat line

B F GEN same as above, Gen goes to ARM on generator. No Load terminal so switches would wire to a hot battery source

Unless there are reasons to keep it original, if it were mine I would consider an internal regulated alternator conversion. I'm reading a lot of reports of difficulty finding reliable generator regulators.
 
(quoted from post at 09:25:14 11/24/20) Your regulator with B (Battery) F (Field) and L (Load or Lights) should also have an ARM or GEN terminal underneath. Battery is your battery connection, F to field on generator, ARM to ARM on generator and L supplies power to light switch. Ignition switch may power from L or Bat line

B F GEN same as above, Gen goes to ARM on generator. No Load terminal so switches would wire to a hot battery source

Unless there are reasons to keep it original, if it were mine I would consider an internal regulated alternator conversion. I'm reading a lot of reports of difficulty finding reliable generator regulators.
Click to expand...

Thank you! This has brought me a great deal of relief. GEN terminal on the VR connects to A on the generator.

While I have converted to alternators in the past which makes life so easy, this gem has a power steering pump on the back of the generator. I have seen reports of faulty VRs as well no I am crossing my fingers I received a good one.

Thank you again for your help, this was a good box to check.
 
He stated the reason above- the power steering pump is bolted to (and runs off) the back of the generator.

Stock VR is strapped to the generator, and is in the drip line off the side of the hood. Makes for faster corrosion and failure of the VR if tractor is not in covered storage.
 
You must log in or register to reply here.

Similar threads

F
Voltage regulator question
Replies
12
Views
450
JMOR
J
T
voltage regulator
Replies
5
Views
237
rvirgil_KS
R
W
830 CK Regulator
Replies
1
Views
236
wore out
wore out
waugh621
Voltage regulator?
Replies
13
Views
374
wore out
wore out
D
12 volt Conversion WITH Magneto Farmall A HELP
Replies
17
Views
718
wore out
wore out
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