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timbernt

Posted 3/26/2015 08:59 (#4477950)
Subject: 3-point problems Challenger MT535B

West central missouri

In December I purchased an 04 Challenger MT535B with 6000 hours. The 3-point did not respond to the cab controls. Tech support recommended replacing the position sensor on the right side of the rockshaft. We did that and it worked one time. But when it came back up (using the fender controls) the flange the sensor rides on went too far and allowed the sensor tip to go past the flange and when we went back down it bent the sensor to the tune of $327. Service tech came out, pulled the rockshaft cover , recovered the sensor tip and re-assembled. Installed new sensor. Identified the problem, but is stumped as to how to fix it. Any suggestions?

Lefty11

Posted 3/26/2015 09:39 (#4478030 - in reply to #4477950)
Subject: RE: 3-point problems Challenger MT535B

Coaldale, Alberta, Canada

We have a similar set up on a White 6710, smaller tractor and a little older, but similar 3pt hitch I think. We had grief with ours, and ended up replacing the computer. I would check all electrical connections in the system, and get the tech to check the programming on the brain. I think it's an auto 5 box. The brain is not that expensive, but would need to be reprogrammed for that tractor and that function. EquipmentUser on this forum would know more.

H

ClassyMassey

Posted 3/26/2015 18:59 (#4478906 - in reply to #4477950)
Subject: RE: 3-point problems Challenger MT535B

It's fairly common for the rockshaft arms to strip the splines on those tractors, I'd check that and if they are both stripped and the rockshaft got turned the stepped flange that the sensor rides on will be out of position and can easily break or bend the position sensor. Also there's a spec that the position sensor needs to be adjusted to.

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