jensen 530 roller problem

[carlos]

hi the jensen 530 tracked chipper at work has developed a problem with the feed rollers, basicly they are stopping dead on bits of wood that they wouldnt normally and when you go to reverse the feed rollers nothing happens until you wrench and tug the branch then they reverse????

we have changed the hydraulic oil and filter recently.

any help appreciated .

thanks carl

[Mike Hill]

Check that you have two green lights visable on the circuit board when the machine is running at full rpm

 

As well as one steady orange light.

 

Check that you have 12v constant at the solinoid on the valve block

Check that the screw in limiter on the end of the valve block is screwed right out

[carlos]

thanks mike will take a look at those parts.

thanks carl

[Mike Hill]

There are another few things,but most of the time the rollers stop working because the solinoid is faulty or not getting 12 volts it needs to open and let the oil to the roller motor.

 

 

[carlos]

used the chipper today but didnt get time to poke about with a multimeter, but when it was acting up the three lights on the control board where flickering on and off.

then  a while later lost all movement in the feed rollers and all the lights on the board had gone out.?

thanks carl

[carlos]

it seemed to be the interlock switch under the hopper playing up, the actual switch worked but the plate needed to be bent in very slightly, so hopefully that will sort it.

thanks for your help with it Mike appreciate it.

carl

[Mike Hill]

Your welcome,glad you got it sorted.