149 Shaft Coupler Arm
 

I have a 149 and I am in the process of replacing the drive shaft and both coupler arms and I am having trouble removing the roll pin from the rear coupler arm. I have tried blaster penetrating oil and a small press and still can't get the pin out. I really don't want to apply heat if I can get away with it. I know there is a lot of valuable information in this forum and all help would be appreciated. Thanks for all your input, Mike.

First off ...have you used a spirol pin punch ? If not, start with that
and generous amounts of PB Blaster ....

Yes I have but I am afraid if I hit it too hard I will bend the shaft or damage the hydro

I just removed one of these couplings earlier today to install a new hydro fan. I sprayed it with PB blaster and let it set a few hours, I then went back an put an old socket under the coupler to give the pin a place to go and used a small drift punch to knock it out. Worked like a charm.

It is best if you support the shaft with something like a hydraulic jack or other solid supporting device, then you can hit it hard enough without causing any damage.

Yep...What ol' george said...He types faster than me ....

Guess I should have mentioned that I removed my drive shaft at the flex discs and did it on the bench. Definitely support the shaft if it's still on the tractor