Jensen A530 feed roller problem

[conkers]

Hi,

Has anybody experienced problems with feed rollers stopping.

There are no blockages, hydraulics have been tested with no probs.

We replaced the solinoid dump but have no or intermitant power feeding the solinoid.

Is this a common problem?

We are clueless about the electrics.

 

Anybody else had same issues?

[WoodED]

Hi,

Has anybody experienced problems with feed rollers stopping.

There are no blockages, hydraulics have been tested with no probs.

We replaced the solinoid dump but have no or intermitant power feeding the solinoid.

Is this a common problem?

We are clueless about the electrics.

 

Anybody else had same issues?

 

checked roler bearings?

[Big 'Ammer]

Throttle cable hasn't slipped a bit?

 

Not quite full revs and the rollers won't turn.

[garth mc garth]

Speed sensor on the flywheel?? does the light come on / go off when you turn the flywheel past it??

[Mike Hill]

Does your machine have a Box inside the Engine Bay?Mounted down low the Dip Stick Side?

There is a Printed Circuit Board in there and one of the Circuits can blow giving you no Feed Roller Function.You can remove the Board and Bridgewire the Burned out Circuit.

 

Save yourself £160

[Ben Moss]

I had a prob with the speed sensor. Moved it to 2 mm of the flywheel and it sorted it.

[Nick Waring]

Dont know what model we used at college, but we had a similar issue with the Jensen there, and it turned out to be the vibration loosened the fixing on the throttle, and then the throttle started to creep down. possibly?

[conkers]

Thanks for your replies.

I had not thought of the throttle slipping.

Failing that must be circuit board.

The sensor id fine and bearings are fine cheers.

 

Can any electrical engineer sort circuit board problems?

[Mike Hill]

Have a look at the Switch that is operated by the stop bar.Sometimes the plunger sticks down.

[Paul Smith]

You can check that it is the board by bypassing it and powering up the solenoid. If you open the box you will see a bridged blu wire with a blue wire next to it. Remove the blue wire from the far side and place it in with the bridge.

 

The feed rollers should turn.

 

You could also re set the board. At full revs,Hold the top and bottom button until the red light flashes, drop the revs to just over half and repeat the procedure holding the middle and bottom button.