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JC-4 Electrical Hookups [message #211175] Sat, 15 June 2013 17:55 Go to previous message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma:
Senior Member

I am currently in the middle of installing a JC-4 vacuum pump on my coach. I have the 'Car Guy' mount and the plug from Jim K, and I have the vacuum line hookup all figured out. I am somewhat electrically challenged and just want to make sure I am reading the diagrams correctly. On the following slides, the terminal marked 'C' has the letters 'NC' next to it. Am I to assume that means 'not connected'? Also, I want to clarify that 'D' hooks up to a fused (always) hot power source, and 'B' hooks up to an accessory hot source. Correct?

http://www.gmcmhphotos.com/photos/vacuum-booster-pump-auxiliary-gmc-jc4/p24283-jc4-pump.html

http://www.gmcmhphotos.com/photos/vacuum-booster-pump-auxiliary-gmc-jc4/p23817-slide5.html

Any clarification would be appreciated. I'm sure to some of you, this is all very simple, but to me it is a challenge. Confused



Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
 
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