jumping out of gear

farmerwithmutt · May 25, 2014

1550 just started jumping out of 3 rd gear . with 10 ft disc all the way in at full throttle if going uphill and really pulling it will pop out how bad is this is it much to fix ? thanks

greg oliver · May 25, 2014

My 1555 did that over 20 plus years ago and I had it all apart. I've forgotten what final result was but gear was replaced. Ihad to pull pto, hydraulic unit,engine and hydrapowerdrive. I sold it in 1994 and bought it back in 2011 in real sad condition. It's repowered with 1650 gas engine and it's only used to get round bales and push snow,I pulled neighbor's disc with it last year real well and I was glad it stayed in gear! Don't get discouraged it can be fixed. Greg

B A Star · May 25, 2014

  Your 1550 has a sliding spur gear transmission.  Does it only jump out of 3rd. gear?  The drive and driven gears must line up so the gears are centered on one another.  Take the transmission cover off and check to see if both gears are centered.  Look at the bottom shaft.  You could have a shifting fork that the bolts that hold it to the shifting rail are loose, or the fork is bent not moving the gear to it's proper position.  Also the bolt holes in the fork are slightly oversize, thus you can move the fork soom.  Also check for shaft bearings that have gained too much bearing clearance causing the gears to not be centered.

bison · May 26, 2014

could be just a worn shifter shaft detent ball or broke ball spring or loose fork hold down bolt.
Take the cover off and have a look see

jumping out of gear

farmerwithmutt

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greg oliver

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B A Star

Member

bison

Well-known Member

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