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MQ 70kva DCA-70SSIU kill circuit issues

Angry Mike

Well-Known Member
Joined
Sep 29, 2022
Messages
57
Location
Wyoming
Hey everyone,
Working on a genset listed in post. Isuzu 4B1T engine. I have found several wiring schematics but none show the fuel cutoff actuator circuit. Does anyone have them?
 

Birken Vogt

Charter Member
Joined
Nov 30, 2003
Messages
5,305
Location
Grass Valley, Ca
I'm not exactly sure what you mean by the fuel cutoff actuator circuit. What arrangement does it actually have? Can you post a picture? How does it compare to the schematic in the manuals that are freely available?

What exactly is the problem?
 

Angry Mike

Well-Known Member
Joined
Sep 29, 2022
Messages
57
Location
Wyoming
Has a idle control actuator, which also functions as the fuel cutoff. The avaible schematic from MQ doesn't show this circuit at all. Showed all other circuits ie. Oil pressure, fuel temp, etc.. i can get a pic Tuesday when i go back out for it.. the actuator isn't killing the engine when the auto-off- manual switch is turned to the off position
 
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