1974 Harley Sequence of operation?
Hello everyone!
Does anyone have a Sequence of operation, or theory of operation for the 5 solenoid 36v 1974 DE Harley?
I have one in my shop that a friend brought me to repair. I ended up checking almost every single wire on this thing with the exception of the delay tube which someone replaced with a two wire electric module.
Its a black cylinder shaped unit with a black and red wire.
I had it running for a bit after I found the brushes stuck in the motor holders. Once freed up the motor would run but only occasionally, there were also bad buss bar connections which helped but I only seem to have 2 speeds.
I suspect intermittent solenoids. All 6 batteries load banked and passed and are now fully charged.
Yesterday I found one open diode between the orange and black wire on the accelerator plate. I replaced it with a temporary diode just to see if that would help but no luck.
I was just hoping a sequence of operation diagram or verbiage would help further diagnose the system.
Thanks all.
Chris
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