Webster Hyd Pump parts, on a 445

cmcgalla

Member
Hello, well i am not sure what is wring with my pump . . .but it is not pumping. I have no idea where to start, but I have a model number of: 10A9855 and then it says: 4xes3-r-c7 does anyone have a clue where I could get parts, manual, replacement if needed? It is a 25 GPM pump from what I can see. Man it really is something when you search google for "webster 10A9855" and you only get 3 results.
 
Do you have the pump off of the tractor? The reason I ask is the splines on the coupler that connects the pump to the shaft that drives it sometimes wear out either on the coupler or the shaft its self or both. What is the tractor doing or not doing?
 
Yes it is off and on my work bench, it also has a power steering pump bolted to it. I was moving a round bale and I set the bale down a bit too fast because I was sliding into my cows . . . anyway after that I heard bad noises, chunking noises, when I would try to pull the front bucket up. Then no more noises. I just replaced the coupling and that seems to be in good shape. But I have not taken the coupler off the shaft and inserted it in the pump to see if it is engaging properly, I guess I should try that?

The pump does not pump, at all. I can turn it by hand and here it sucking, but when I turn it sharply I can feel it kind of skip....sort of like when you have a strip bolt and the socket spins on the air ratchet so you switch to a manual, hand-held drive.
 
Are you sure the drive shaft is turning? There is a coupling in the engine flywheel that is known to sometimes strip. Also, I guess you checked the coupling back at the pump.
 
Yes, the coulping is new, I just replaced it about 6 months ago.

I pulled the pump and had my son crank it (key off so it wouldn"t start)and I felt the shaft turning. Now, I guess the shaft when under he load of turning the pump could be slipping . . .never thought of that, ugh. So how could I check that in a relatively safe way?
 
See my post from a while back . . .this is what I just replaced several months ago: http://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=mm&th=71195
I am now wondering if the shaft in the flywheel is stripped? How would I check that?
 
If I remember correctly some of the early pumps had a key between the shaft and the gear in the pump. Later ones used a splined shaft and gear.
From your description of turning the pump by hand, it sounds like either the key has sheared or the gear has broken.
Also early 445's used an adapter on the end of the main drive shaft that was keyed instead of splined like the later ones. Some of them used a sleeve that had 6 small internal splines on both ends that went between the shaft and the pump (using no adapters) but I think that was only used with the standard pump NOT the industrial one.
 
Got it all apart, pretty easy, looked around and found nothing that could be wrong. I am amazed at simple the pump is, there is nothing to it. So I figured maybe that coupling was not engaging, it was the only thing left. I went to the tractor took part #3 off (see pic) and tried to mate it with part #2, NOPE. Something happened and they would NOT go together, so I started studying the pieces and began hand filing until the high spots were gone. It looked like the pieces were never really mated right to begin with, which caused the grinding. Got it all back together and it works fine. Funny though that I ran it for about 5 minutes . . .then my power steering hose blew out ...lol. But we are all fixed up on the pump side! Thanks for the help!
Zeek
 
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