3 pt rh leveling arm

[la-lafayette]

My leveling arm crank will not budge..Attempted to add grease but no go..took off the grease fitting and it seemed ok...soaked the crank with some penetrating oil a couple of times over a few days. tapped with a hammer back and forth but still no love.
Time to scrap or can it be brought back to life?
Thanks everybody

 

[Jake Collie]

Heat is your friend.

 

[Ultradog MN]

It's pretty easy to take those apart.
Drive out the roll pin #46.
Now the top hat gear #43 can be pulled out one side and the crank #45 from the other.
Now take and tap the threaded end of #42 on the workbench or floor and that will drive the cap #47 out.
Once disassembled you can clean and inspect for problems.

 

[la-lafayette]

Thx Ultradog...that's some good info

 

[Billy NY]

The one on my 850 was seized but good, it took a fair amount of heat and working on it to free it up, when I did, the threads were so rusted or pitted, there was hardly any thread engagement, not enough to hold, so I replaced the threaded rod with the pinion or spider gear on the end and the cast fork, left my crank and gear on, and now works as it should be, must have been a lot of years without being used, likely when this tractor had a backhoe on it or who knows, never saw one as bad.

 

[36 Coupe]

Lack of grease lets water in and ruins the thread on the fork.Last one I fixed needed a new threaded rod.