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I recently started experiencing "bucking" on my 1997 520-H with the Eaton 1100 series transaxle. This occurred after 500 hours of heavy use with the 60" mowing deck, with all transaxle oil changes performed per specs. In reviewing causes of "bucking", I came across this for a similar complaint in a Simplicity 4711 that used the same transaxle. ( simpletractors.com/forums/topic/7441-simplicity-4211-hydro-bucking-problem/ ). One thought was that this was due to missing or loose bolts securing the transaxle to the frame.
This turned out to be precisely the reason for the "bucking" in mine. One securing bolt replaced, all other securing bolts tightened (along with the engine bolts), and the Forward-Reverse lever/linkage adjusted and tightened, and the tractor is back to "usual".
It's just something to consider before the nightmare of a transaxle overhaul...
Does anyone know where you can get the correct size, 90 deg crimp fittings for the hydraulic line going from under the hydro trans to the lift valve on the 520-H? I found a Gates fitting with the correct thread size but it was too long on the thread end. It came down too far under the transmission to allow the hose to come over the frame.
Hopefully I described this well enough?
Boy oh boy I love my 520H but I can not seem to find/read some of the numbers on it to look up my tractors info. It has a 20hp Onan that will need work soon. The tractor it self needs work. I am going to fully restore it but can't look for parts cuz I have no info on it. ANY help would be greatly appreciated. Under the seat I find I.D # 3120OE01, then 15426 and what I can read of 9264???.
By Heavy Duty
48" side discharge mower deck, used only 1 summer. This deck is in fantastic shape. Little bit of rust, very straight and spins like new. I can ship Fastenal at cost, or pick up. 300.00 OBO. https://flic.kr/p/X6JGCv
I am asking for help from all the members in Red Square. I have a Wheel Horse 520-H with an ONAN P220G-I / 10955C.
I bought a new starter motor and flywheel from my local Toro dealer whom I trust and has never steered me wrong yet. I installed the starter motor with the spacer bushing on the correct side of the engine block to get the starter motor gear out far enough to make contact with the flywheel. Now I see that the pinion gear in the starter motor is not a large enough diameter to fit with the teeth of the flywheel. HOW COULD THAT BE? There is no up or down adjustment on the starter motor mounting. The fly wheel is where it is going to be. Could the starter motor be the wrong one? The solenoid is at a right angle to the mounting bolt holes and that is the only way I could see to mount this starter motor. I had a starter motor that had the solenoid at 180 degree from the mounting bolts but that would not clear the tractor frame.. I have the ONAN P200G Service Manual but it does not cover this problem. It does not give the starter motor number either.
I have attached pictures of the gear engaged showing the gap between the gear and flywheel (first picture slightly dark).. Second picture is of the gear disengaged. Third picture is gear disengaged from different angle. Fourth picture is of the spacer bushings in mounted starter motor and engine block. The last picture is of the electric fuel pump for the same engine that is not working. Does anyone have a replacement for that fuel pump?