Jcb steering problem

[Northeastfarmer]

hi all, I've got a jcb 530-70 and the steering between the front wheels and the back wheels has somehow come out of line slightly....(it's done this before once but I just straightened back wheels then put it in front wheel steer and lined front wheels back up)
Trouble is for some reason I can only get 4 wheel steer selection...anyone know if there's a fuse (and which number) I've checked all fuses and none blown but a few missing....thanks for any advice

 

[mx110]

more likely to be the sensor on rear axle make sure its clean for a start

 

[ACEngineering]

hi all, I've got a jcb 530-70 and the steering between the front wheels and the back wheels has somehow come out of line slightly....(it's done this before once but I just straightened back wheels then put it in front wheel steer and lined front wheels back up)
Trouble is for some reason I can only get 4 wheel steer selection...anyone know if there's a fuse (and which number) I've checked all fuses and none blown but a few missing....thanks for any advice

Yes there is a fuse but you will have to look in the manual or on the fuse plate to ID it the picture of it is a steering wheel.

Take it out and you should have 2 wheel steer only I think? line them back up and put fuse back in, check LED lights on both front and rear sensors are lit when wheels are straight. Sensors quite common to fail or need adjusting.

To be honest its a way over complicated set up just to get 4 wheel steering, glad I don't have to fudge about like that with the manitous they have the best steering mode selection of just about any handler, a 3 way manual diverter lever what could be simpler?

 

[Northeastfarmer]

Yes there is a fuse but you will have to look in the manual or on the fuse plate to ID it the picture of it is a steering wheel.

Take it out and you should have 2 wheel steer only I think? line them back up and put fuse back in, check LED lights on both front and rear sensors are lit when wheels are straight. Sensors quite common to fail or need adjusting.

To be honest its a way over complicated set up just to get 4 wheel steering, glad I don't have to fudge about like that with the manitous they have the best steering mode selection of just about any handler, a 3 way manual diverter lever what could be simpler?

I've tried the fuse trick but still would only stay in 4 wheel steer, I've also cleaned the sensor on back axle and nothing happened....think the only way I'll get them lined back up will be to jack the back end up....undo the hydraulic steering ram pipe shove the rear wheels in line then reconnect the pipe...

 

[RWG Contracts]

Just put your penknife between the sensor and complete the circuit? That's what I did on mine until I had time to adjust the sensor bracket

 

[Northeastfarmer]

Just put your penknife between the sensor and complete the circuit? That's what I did on mine until I had time to adjust the sensor bracket

Tried that too but to no avail

 

[RWG Contracts]

Tried that too but to no avail

You have to wiggle your knife?

Other than that I'm clueless

 

[Northeastfarmer]

You have to wiggle your knife?

Other than that I'm clueless

I'll give it another go tomorrow....failing that I'll drain the ram and force the wheels back in line, not sure how they've become out of line as I never take it out of 4 wheel steer as I can't!

 

[RWG Contracts]

I'll give it another go tomorrow....failing that I'll drain the ram and force the wheels back in line, not sure how they've become out of line as I never take it out of 4 wheel steer as I can't!

Driving on rough hardcore or in sticky fields knocks mine out

 

[Northeastfarmer]

Driving on rough hardcore or in sticky fields knocks mine out

If I could just get 'front wheel steer only' working I'd line it up in a second but it'll be an electrical gremlin and they usually cost a small fortune to rectify!

 

[RWG Contracts]

If I could just get 'front wheel steer only' working I'd line it up in a second but it'll be an electrical gremlin and they usually cost a small fortune to rectify!

Is there no young mechanics at local JCB dealer who'll sort it for cash?

 

[Northeastfarmer]

Is there no young mechanics at local JCB dealer who'll sort it for cash?

Probably but between me and my dad we are fairly mechanically savvy but not so much electrical! If disconnecting the ram doesn't work then We'll regrettably have to get a fitter to it

 

[jd6820]

Take it out and you should have 2 wheel steer only I think? line them back up and put fuse back in, check LED lights on both front and rear sensors are lit when wheels are straight. Sensors quite common to fail or need adjusting.

Had quite a few do's with these JCB's and steering alignment, check the sensors are lit, judging by the fact it won't change mode nearly guarantees sensors are responding. Both front and rear need to work for steering mode to change, adjustment is a fine balance. Sensors fail too, a small knock is often all it takes to finish them off.

I would say @ACEngineering is on the money

 

[Northeastfarmer]

Had quite a few do's with these JCB's and steering alignment, check the sensors are lit, judging by the fact it won't change mode nearly guarantees sensors are responding. Both front and rear need to work for steering mode to change, adjustment is a fine balance. Sensors fail too, a small knock is often all it takes to finish them off.

I would say @ACEngineering is on the money

Trouble is, in the cab, the little red light which tells you which steering mode you're in stays in 4 wheel steer mode even when you turn the dial to either steering mode selection...it won't select any other mode

 

[RWG Contracts]

Trouble is, in the cab, the little red light which tells you which steering mode you're in stays in 4 wheel steer mode even when you turn the dial to either steering mode selection...it won't select any other mode

Have you moved it to 2wheel steer so the light flashes and then put your knife in?

 

[Blue.]

Trouble is, in the cab, the little red light which tells you which steering mode you're in stays in 4 wheel steer mode even when you turn the dial to either steering mode selection...it won't select any other mode

One of mine did this last month,after about half an hr it started working fine again.

 

[RWG Contracts]

One of mine did this last month,after about half an hr it started working fine again.

Have you altered it now so it's Bluetooth controlled

 

[Northeastfarmer]

Have you moved it to 2wheel steer so the light flashes and then put your knife in?

Nothing happens when you try and select two wheel steer the little red light just stays on 4 wheel steer

 

[Northeastfarmer]

One of mine did this last month,after about half an hr it started working fine again.

Mine hasn't worked for over a year!

 

[RWG Contracts]

Nothing happens when you try and select two wheel steer the little red light just stays on 4 wheel steer

Ah so it probably isn't anything to do with sensor