Front hydraulic pump shaft removal

DAS

New User
I have a 1948 8N with a front mounted hydraulic pump. I want to replace a badly worn fan belt and this is where the fun begins. I've researched the archives and found a reference to a splined shaft but I can't find it again. But anyway there's a round disc with four pins that go into the crankshaft pulley. I can't see any signs that it is splined into the disc but it has to be attached somehow. I don't want to do too much hammering until I know if the hopefully splined connection is what I have. If it is a welded connection I will need to remove the front axle and most of the front end loader and I can't believe someone would install such a setup. Anyone run into something like this?
 
(quoted from post at 09:31:29 10/19/14) I have a 1948 8N with a front mounted hydraulic pump. I want to replace a badly worn fan belt and this is where the fun begins. I've researched the archives and found a reference to a splined shaft but I can't find it again. But anyway there's a round disc with four pins that go into the crankshaft pulley. I can't see any signs that it is splined into the disc but it has to be attached somehow. I don't want to do too much hammering until I know if the hopefully splined connection is what I have. If it is a welded connection I will need to remove the front axle and most of the front end loader and I can't believe someone would install such a setup. Anyone run into something like this?

The hub with teh four pins is a left hand thread on the shaft.

TOH
 
(quoted from post at 06:31:29 10/19/14) I have a 1948 8N with a front mounted hydraulic pump. I want to replace a badly worn fan belt and this is where the fun begins. I've researched the archives and found a reference to a splined shaft but I can't find it again. But anyway there's a round disc with four pins that go into the crankshaft pulley. I can't see any signs that it is splined into the disc but it has to be attached somehow. I don't want to do too much hammering until I know if the hopefully splined connection is what I have. If it is a welded connection I will need to remove the front axle and most of the front end loader and I can't believe someone would install such a setup. Anyone run into something like this?
I too faced the same exact situation with my '48N. Rather than trying to dis-assemble everything I bought a product called NU-T- Link belting available through my local NAPA. This belting came in a 50 foot roll for around $35. I cut the old fan belt and just guided a 5 foot length of this belt around the pulleys and adjusted it for length. Worked perfectly, and I now have enough left over to replace the belts on my snowblower, drill press, and table saw!
 

Something like this.


mvphoto12127.gif
 

Dan I have wondered how this works. I assume the pulley mounts to the front of the crank just like other pump pulleys. Accept my pump shaft is splined and fits into the splined center of the pulley.

How does the pump shaft mount onto the round disk with the 4 pins in your picture? Does the shaft have a threaded end and bolted to the disk with the screw spacer shown?

What implement used this setup?

Thanks
 
As skip noted NAPA carries NU-T- Link in a few sizes .5", .66", .88" priced from $22-$36 for 50 ft.
I need to replace fan belt om my 43 2N and have same issue looks like you have, the shaft doesn't come out. I read someplace on here what happens is the splines get a burr that stops it's removal.
I believe I need the .66 for $24 @ 50'
 
(quoted from post at 18:20:09 10/19/14)
Dan I have wondered how this works. I assume the pulley mounts to the front of the crank just like other pump pulleys. Accept my pump shaft is splined and fits into the splined center of the pulley.

How does the pump shaft mount onto the round disk with the 4 pins in your picture? Does the shaft have a threaded end and bolted to the disk with the screw spacer shown?

What implement used this setup?

Thanks

  • [*:9cbf64f3df]That is the special fan belt pulley in the picture.[*:9cbf64f3df]The four pins on the hub engage the four rubber bushings in the face of the pulley. [*:9cbf64f3df]The driveshaft screws into the hub with a left hand thread which is what buffalos most people trying to remove it.[*:9cbf64f3df]The flathead machine screw and countersunk washer are something I devised to replace the unobtainium slotted crankshaft screw and washer originally provided by Wagner.[*:9cbf64f3df]This setup was used on Wagner WM2 and WM3 loaders and does not work nearly as well as the splined shaft and hub.[/list:eek::9cbf64f3df]TOH
 

I am sure that will fit in with some of the other farmerized and proud of it repairs I am seen posed here...

If you have no idea how to fix it correctly its best to sit on it porch...
 
Like said below, the plate with 4 pins has left hand
threads. Unscrew the shaft, lift out the plate with
pins. Remove/replace belt. Put plate back in place
and screw the shaft into it (LH threads).
 
(quoted from post at 19:19:39 10/19/14)
I am sure that will fit in with some of the other farmerized and proud of it repairs I am seen posed here...

If you have no idea how to fix it correctly its best to sit on it porch...
Not sure how your comments pertain.....
Thanks to guru Old Hokie for analizing my query. It didn't have raised splines. Picture ruled that out. Remaining, pressed or threaded. LEFT hand threaded. Problem solved. I sat on the porch with my laptop until someone advised me how to correctly repair.
What does it take to be a farmerizer or guru?
 
"What does it take to be a farmerizer or guru?"

When you can figure out how to get the The Old Hokies screw to tighten to the right!
 
(quoted from post at 10:18:58 10/20/14)
(quoted from post at 19:19:39 10/19/14)
I am sure that will fit in with some of the other farmerized and proud of it repairs I am seen posed here...

If you have no idea how to fix it correctly its best to sit on it porch...
Not sure how your comments pertain.....
Thanks to guru Old Hokie for analizing my query. It didn't have raised splines. Picture ruled that out. Remaining, pressed or threaded. LEFT hand threaded. Problem solved. I sat on the porch with my laptop until someone advised me how to correctly repair.
What does it take to be a farmerizer or guru?

You need to view the thread in classic view to see that the comment was not directed at you. Hobo was expressing his opinion of link belts as a fix....

TOH
 
(quoted from post at 18:18:58 10/20/14)
(quoted from post at 19:19:39 10/19/14)
I am sure that will fit in with some of the other farmerized and proud of it repairs I am seen posed here...

If you have no idea how to fix it correctly its best to sit on it porch...
Not sure how your comments pertain.....
Thanks to guru Old Hokie for analizing my query. It didn't have raised splines. Picture ruled that out. Remaining, pressed or threaded. LEFT hand threaded. Problem solved. I sat on the porch with my laptop until someone advised me how to correctly repair.
What does it take to be a farmerizer or guru?

We are blessed with them maybe they will ring in and splain it...

Everyone gets a surprise in their kids meal for participation...

I can not for the life of me figger out how someone would consider a link belt the proper repair :shock:
 

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