Jcb 525-60 boom/3rd service

eomachinery

Member
Livestock Farmer
Hi all, we have a 2004 Load-all 525-60, the fuse for the telescoping boom/3rd service keeps blowing, i think i have traced this back to the solenoid which switches the 3rd service from the head-stock to the PUH as the solenoid was really hot even heating the wires going to it. I have unplugged the solenoid and replaced the fuse again, but now nothing is happening, there is power at the fuse, but the boom wont work.
The solenoid unplugged shouldn't affect the boom in my opinion. Can anyone point out a possible cause? im thinking whilst testing something else has burnt out, can anyone possibly provide a diagram for the relays as it could be one of those.

Any help much appreciated.
 
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boom

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