Need to replace fan belt on an old D-2

GeneMO

Well-known Member
Location
Pilot Grove, Mo.
This is about a 1950 model or there bouts. Serial # 5U5179

I have an owners manual and service manual but I think they are at the farm shop, and I am 50 miles away right now.

The lower pully, that comes off the engine, has a drive shaft going foreward that runs the hydraulic pump. I can't figure out how to slip the belt over the pully.

Surely I dont have to pull the pump resevoir off do I??

I thought it would be an easy fix, then after I got the belt I saw the drive shaft and thought Oh oh!

Gene
 
A good time to give the area a blast of the pressure washer if you have one,you got to remove the shaft drive flange from the pulley,take out the bolts holding the flange to the pulley and the set screw from the shaft,prise the flange away from the pulley,if it will not move put in some jacking bolts in the threaded holes on the flange and push it towards pump,it will only move enough for the belt to go through on its side so don't bend the flange,take out the jacking bolts,put the belt over the blades first and and leave it out of the pump pulley groove,lace the belt round the crank pulley then the pump,bolt the flange back in place,put in the set screw,adjust the belt.
AJ
 
pull the 4 bolts holding the pump on and slide it forward just far enough to slide belt in between the flange and pulley. or slide the pump off of the shaft and slide belt in.
not easy
have fun :)
 
(quoted from post at 15:19:41 10/09/14) A good time to give the area a blast of the pressure washer if you have one,you got to remove the shaft drive flange from the pulley,take out the bolts holding the flange to the pulley and the set screw from the shaft,prise the flange away from the pulley,if it will not move put in some jacking bolts in the threaded holes on the flange and push it towards pump,it will only move enough for the belt to go through on its side so don't bend the flange,take out the jacking bolts,put the belt over the blades first and and leave it out of the pump pulley groove,lace the belt round the crank pulley then the pump,bolt the flange back in place,put in the set screw,adjust the belt.
AJ

Thank you much. I was hoping it was something like that. I sure didn't want to have to pull the resevoir, pump and all that. Plus it has sort of a home-made radiator guard on the outside that weighs a ton, that would have all had to come off. And, it is down in the middle of the woods about a mile from civilization.

Thanks again, Gene
 
Yes the link belt was used on most things in the old days,here in the UK we called it Brammer belt,it is very quick repair esp if the old belt was a link belt too,you just used the same amount of links,feed it around the shaft and join it,a great get out of trouble fast fix,the machinery manufacturers could have done a lot more with the design of the pump drive like putting a spacer between the flange and the pulley that could be removed when the bolts were removed to put the belt through.
AJ
 
The old International 500c dozers had a great setup for changing the belt--the hydraulic pump had a spring loaded dog clutch that drove it--just slide the clutch toward the pump and you could remove the old and install the new belt.
 
Finally got around to getting it fixed yesterday.

Removed the 6 bolts holding the flange on the inside of the crankshaft pully. Removed the set screw. With lots of wiggling, prying, cussing, etc. we got the flange to slide back towards the radiator. Just enough gap to get the belt in.

Had to adjust the top sheave "open" enough to help get the belt seated, then adjusted it back tighter.

I was scared to death that I was going to have to remove the front resevoir, pump, etc.

Thanks so much for the help. None of my manuals/books tell how to do this.

Gene
 
Cussing is allowed doing that job,now you are up and running and have the satisfaction of having done it yourself,well done.
AJ
 

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