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Cletrac Tractor Discussion => HG, OC-3, OC-4 & General => Topic started by: W Roger Parry on September 10, 2009, 09:42:46 PM

Title: OC4 Electrical System
Post by: W Roger Parry on September 10, 2009, 09:42:46 PM
Which electrical grounding system does a late model OC4 have Positive or Negative?  It has a 6 Volt electrical system.

W. Roger Parry
Title: Re: OC4 Electrical System
Post by: John Schwiebert on September 11, 2009, 12:58:53 AM
By late model I would guess 3 cylinder model? Double check but it should have a Delco regulator and you should find the letters POS  stamped on the attaching band. This indicates Positive ground. More generator equipped tractors were positive ground than negative ground. More questions?
Title: Re: OC4 Electrical System
Post by: W Roger Parry on September 11, 2009, 07:42:38 PM
John, I changed the ground to positive and everything is OK.  Thanks for your help.

Roger
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