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Chassis battery ground

92 U280 chassis battery has a resistance ground.  Does anyone know where the battery ground is terminated?

Re: Chassis battery ground

Reply #1 –
On my wiring schematic B-2126 it shows the chassis batteries ground at two points.  One cable (labeled B2) goes to the starter.  The other cable (labeled B6) goes to one of the coach battery negative posts.

The coach batteries have one ground cable (labeled B8) that goes to a central grounding lug.  I don't know where it is located.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Chassis battery ground

Reply #2 –
Near the starter, on the frame, is a bolt containing several ground cables. I believe one of those is what you're looking for.
1994 U280, Build 4490
Deming, NM.

Re: Chassis battery ground

Reply #3 –
Nobody has ever complained about too many or good grounds. Many electrical faults can be attributed to bad grounds. First thing I check.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake
 

Re: Chassis battery ground

Reply #4 –
I have found over the years that people only think a wire has only one end. Everyone needs to check both end of a wire/cable and both wires-"hot" and ground. Any time the cable/wire goes from copper wire to a crimp fitting or a molded battery clamp you have a potential bad spot to check out.
 
1992 U225 36'
Build #4134
1987 Rockwood 32'
Ham radio/Motorcycles and old cars
Both of us are Retired
Married 32 years
Other half is "Old Toolmaker"
Dog named Duke.