Jcb 535 engine fuses blowing

[RLSPlant]

Hello all,

So my 2002 535 produced a weird fault today, well yesterday I was working it between my place and a friends (9miles each way), now this has done this once before and a change of fuse fixed it instantly however this time I made said 9 mile journey to where I'm keeping my machine, parked her up, got out and I thought to move it closer to the wall of the shed, climbed in and turned the key, heard starter spring to life and then pop......40 amp Pal fuse in battery box blows, bwaring in mind its started and stopped all day, anyway a few sweary words later and I've a new fuse in and try again, this time nothing other than the same new fuse popping instantly, so I'm down to my last fuse (tried and popped 6 as they are cheap fuses so questionable quality), I left and cleared my local auto shop out of the fuses as I like spares and returned today to diagnose, new fuse in, turned the key and away she went as normal which left me miffed and got me to thinking the solenoid when warm must be drawing too much and popping the fuse as I hadn't disturbed any wires because I checked what I could see of the loom after she started fine

Anyone any other theories before I swap the starter as a precaution so I'm not left stuck somewhere?

Thanks all

 

[Stock]

Insulation breaking down in the starter when it gets hot.......................................

 

[Speedstar]

Hello all,

So my 2002 535 produced a weird fault today, well yesterday I was working it between my place and a friends (9miles each way), now this has done this once before and a change of fuse fixed it instantly however this time I made said 9 mile journey to where I'm keeping my machine, parked her up, got out and I thought to move it closer to the wall of the shed, climbed in and turned the key, heard starter spring to life and then pop......40 amp Pal fuse in battery box blows, bwaring in mind its started and stopped all day, anyway a few sweary words later and I've a new fuse in and try again, this time nothing other than the same new fuse popping instantly, so I'm down to my last fuse (tried and popped 6 as they are cheap fuses so questionable quality), I left and cleared my local auto shop out of the fuses as I like spares and returned today to diagnose, new fuse in, turned the key and away she went as normal which left me miffed and got me to thinking the solenoid when warm must be drawing too much and popping the fuse as I hadn't disturbed any wires because I checked what I could see of the loom after she started fine

Anyone any other theories before I swap the starter as a precaution so I'm not left stuck somewhere?

Thanks all

we had a problem like that on a 02 plate 530 & it was a earth in the loom that was the problem it took some finding