Still Working On D2 With Pony Motor Problem While Waiting For Mag And Carb We Decided To Replace The Main Engine Fan Belt. How Does The Shaft From Crank To The Hydrolic Unit Move Do You Have To Remove The Six Bolts On The Crank Than Move The Hydrolic Unit Foward After Removing The Pipes To The Valve And Attacking Bolts Or Does The Shaft Slide Into The Pump . Ican't Seem To Find Any Info On This Procidure . The Pump Is A Cat Model 44 The Machine Is A 5u17575. Thanks In Advance For Any Help Dan

Yes I believe if you remove the drive from the crank that the shaft is telescoping over the pump shaft & move it ahead to give room to slip the belt by the coupling.It,s been many years since I changed one unless someone else has more up to date info. on doing it.

There is a set screw #8F4131 that allows the six bolt flange to slide forward after you undo the six bolts as well as telescoping the coupling shaft forward. You may still have to loosen the #44 housing to pull it forward enough for belt clearance.

It has been a while since I have done it but I think I had to turn the belt sideways and had very little clearance. Not enough room to pick it straight out. It is not uncommon to have a leaky waterpump and wear in the seals/ bearings. See how much the fan moves while you have the belt off of it. As the other fellows have said, The shaft should move back into the Hydrolic pump. Dave!

Old Magnet Thanks For The Picture And The Tip On The Set Screw It Took About An Hour Start To Finish The Belt Is On .one Other Thing The Threaed Holes To Pull Off The Coupeling Should Be Mentioned For Any Other Person Attempting To Replace A Belt On This Type Application. Thanks Again Dan

Are you referring to the jacking bolt holes on the flange??? also was there enough clearance without disturbing the #44 housing?? That's making pretty good time for a somewhat dreaded task:D

Old Magnet Yes The Jacking Bolts And We Did Not Have To Move The #44 Housing Turned The Belt On Its Side And Had Plenty Of Clearence. Also Had A Helper To Fetch And Clean. Dan

Got it,
Thanks for the feedback:)

For these kind of dreaded fanbelt access jobs, I've seen guys put TWO belts on, when everything was separated .. and tie the spare belt to parts of the engine, back out the way.
That way, when the operating belt gave up the ghost, all that was required, was to unclip the other new belt that was already in place, and install it.
Wouldn't be too acceptable on a concours show tractor .. but on a working tractor, it's a very practical solution to save a heap of additional work, when belt change time comes around again.

"OzDozer" wrote:

For these kind of dreaded fanbelt access jobs, I've seen guys put TWO belts on, when everything was separated .. and tie the spare belt to parts of the engine, back out the way.
That way, when the operating belt gave up the ghost, all that was required, was to unclip the other new belt that was already in place, and install it.
Wouldn't be too acceptable on a concours show tractor .. but on a working tractor, it's a very practical solution to save a heap of additional work, when belt change time comes around again.

I'll remember that, OzDozer!