I have a JLG 60H with an LSG-423 engine (Zenith Mdl 33 Carb with electric choke) with an E301C Rev.1 Precision Governor Controller. Engine run well and ground functions work without issue.
My problem is when I switch over to platform. For a long time now, I'd step on the foot switch and the engine would die. If I would keep tapping the switch eventually I could get the engine to ramp up.
When the engine is cold, it sometimes works normal but starts to act up more and more after several minutes.
Thinking it was with the PGC, I completely disconnected the controller and set the throttle manually. Upon stepping on the foot switch I would hear the engine labor ever so slightly and all functions worked. To my surprise when everything started to warm up and I would depress the foot switch, the engine would want to die. Even tapping the switch killed the engine. I'm hoping its a relay but I have no idea which one. I also thought it might be a hyd valve sticking but the relief valve should keep the engine from dying. I'm having a terrible time with the schematics and am at my wits end.
Please, I would appreciate any help that anyone could give me in this matter. I am totally dumb founded!
My problem is when I switch over to platform. For a long time now, I'd step on the foot switch and the engine would die. If I would keep tapping the switch eventually I could get the engine to ramp up.
When the engine is cold, it sometimes works normal but starts to act up more and more after several minutes.
Thinking it was with the PGC, I completely disconnected the controller and set the throttle manually. Upon stepping on the foot switch I would hear the engine labor ever so slightly and all functions worked. To my surprise when everything started to warm up and I would depress the foot switch, the engine would want to die. Even tapping the switch killed the engine. I'm hoping its a relay but I have no idea which one. I also thought it might be a hyd valve sticking but the relief valve should keep the engine from dying. I'm having a terrible time with the schematics and am at my wits end.
Please, I would appreciate any help that anyone could give me in this matter. I am totally dumb founded!
JLG60H Engine stops when Foot Switch is pressed
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