D2 fan belt for Dummy ( me)

What series model D2 do you have ? A "J" series or "U" series?

it is a "J" 3J4350 sp to be specific

Here's another idea, you wouldn't have to take anything apart to install. I know it's not original Cat but I've used these on various machines over the years, they hold up well http://www.fennerdrives.com/powertwist-plus/

Here's another idea, you wouldn't have to take anything apart to install. I know it's not original Cat but I've used these on various machines over the years, they hold up well http://www.fennerdrives.com/powertwist-plus/

Ol Grump, do you know which Fenner product I should order for my 4UD2?

Thanks,

Greg

Ol Grump, do you know which Fenner product I should order for my 4UD2?

Thanks,

Greg

[quote="Gregness"]Ol Grump, do you know which Fenner product I should order for my 4UD2?

Thanks,

Greg[/quote]

Greg, if you have the Cat 44 pump, you do not need to remove the pump or the drive shaft, just take the drive flange loose, slide it forward out of the way, and slip the belt behind the end of the shaft. I just did this last July with no problems. I did fit a new flange gasket.

Stephen, thanks for the tip!

What fan belt did you use? (assuming buying one from Cat would be the most expensive option out there!)?

Greg

Greg, I did use the Cat belt! I didn't have to worry with "should fit" and I had it in my parts storage long enough to get over any $ hurt feelings, if indeed there were any to begin with. I think having the Caterpillar name & part number showing when the engine is at rest adds to the visual appeal. Better than Napa, Car-Quest, Browning, OpiBelt, etc.
I should add that there is no "just slip the flange forward" my version has a bolt from the side that restrains the end of the shaft, so that must be removed or backed off sufficiently. The flange bolt circle has two threaded holes for extracting the flange from the pulley recess, which may be in a semi frozen condition due to being away from the factory for so long. Remove the bolts, six at least, then screw two of them into the extracting holes and tighten alternately. I did it with the 2S blade attached standing on my head. Use eye protection. You will need a gasket scraper, and a gasket, or the means to make one. Anti-seize is your friend.