Kuhn folding power harrow splitter gearbox repair

[snarling bee]

Has anybody else taken one apart and changed the bearings and seals. It looks fairly simple, but IME there is always something that tests the skills and equipment in a farm workshop with this sort of job.
Any tips gratefully received.

Edit: Please nobody say tidy the bench first. We did that last year!!
Edit 2 Looks like one of the gear teeth is not perfect on the photo - better take a closer look.

 

[Bobthebuilder]

The gears will be matched pairs so don’t be tempted to just replace 1 as you’ll be back into it before long

 

[Hjwise]

I did a maschio box a couple of years ago - they have various sized shims to get the right amount of backlash in the gears. I didn’t have enough backlash and it lasted about 2 hours before it overheated.

not a Kuhn, but may be of some relevance.

 

[dec]

Make sure you get the preload on the bearings set right too or it will only last 5 mins

 

[vinnie123]

Are the bearings gone ?

 

[Phil P]

Does Andrew Guest not do an exchange unit? Could work out quicker and cheaper.

Ps he would know the setup procedure and torque settings so would be worth a phone call if nothing else.