B1700 Main Drive Shaft Removal

[jimb]

Good morning.
I have a B1700 HST that has a leaking oil seal at the rear of the transmission. The drive shaft will need to be removed, however, I'm not sure how to remove the rear coupler. The front coupler is easy to get at, but the rear coupler with roll pin is boxed in within the frame.
Any suggestions are appreciated.

 

[North Idaho Wolfman]

Rear of the transmission or rear of the clutch housing?

It's tricky but if i remember right you need to get to the pins from the bottom side of the housing, and note there is a pin inside a pin on those joints.

Also I don't think you can remove the shaft out of the couplings without splitting the tractor, please let us know if I'm wrong on that point.

 

[jimb]

Rear of the transmission or rear of the clutch housing?

It's tricky but if i remember right you need to get to the pins from the bottom side of the housing, and note there is a pin inside a pin on those joints.

Also I don't think you can remove the shaft out of the couplings without splitting the tractor, please let us know if I'm wrong on that point.

I may not have the terminology perfect, but: the seal that is leaking is around the short splined shaft that comes out of the gear-box/transmission directly behind the clutch housing. NOT the rear transaxle. The drive shaft will need to be removed. I was hoping that I could drive the roll-pin out of both couplers on the drive shaft and that would give enough room to drop the front-end of the driveshaft out of the way and then remove the leaking oil seal. I can get to the front coupler, but the rear coupler is obstructed by the frame.

 

[lugbolt]

6 of one half dozen of the other.

Takes me about the same amount of time to remove the engine assembly as it does to remove the transmission far enough to get the shaft out. I normally pull the engine and do the seal and bearing R&R on the table as opposed to under the tractor where it's too easy to mess up. But that's just my way of doing it.

I can usually do one in 5 1/2 hours give or take-but I ain't done one in a long time, so the next one may be closer to 8 hr.

 

[jimb]

6 of one half dozen of the other.

Takes me about the same amount of time to remove the engine assembly as it does to remove the transmission far enough to get the shaft out. I normally pull the engine and do the seal and bearing R&R on the table as opposed to under the tractor where it's too easy to mess up. But that's just my way of doing it.

I can usually do one in 5 1/2 hours give or take-but I ain't done one in a long time, so the next one may be closer to 8 hr.

Ok, thank you.