For my 1st post , I decided to tell about the steps I took to split my 4850. While the clutch has been working fine, there was a loud squeal from the release bearing whenever I engaged the clutch. If you are handy you should be able to carry this procedure out. The rear stationary part of the tractor should be well supported and a level concrete floor is a must. The preparation, including making the plywood jack support to the point where I could remove the bearing took me 2 days. I was able to re-assemble all in one day. The only expense I incurred was for the grease. The bearing was very dry but recovered well with some TLC.
Here goes:
Disconnect battery cables. Remove engine hood and side panels.
Remove steering wheel adjustment covers and dash to access wiring; disconnect spedo. cable & necessary plugs/wiring; Shut off fuel and disconnect the two rubber fuel hoses(plug them); remove 4WD propeller shaft cover under tractor(shaft will sepatate on its own when separating); Drain hydraulic oil; Build jack support and bolt it to clutch adjustment side openings.(see photos); block the front axle to the frame to prevent rocking; Jack and support tractor under rear draw bar and under trans.; ***8230;.let air from rear tires to rest on supports; disconnect throttle rod ; disconnect hydraulic lines, one has coupling under foot rest on rhs and 2nd at the hydraulic filter(3 bolts). They will slide fwd. when separating); using floor jack, jack front section under front jack support enough to support weight only.; remove all bellhousing bolts.
Adjust front tire pressure to keep front section level; roll front section away using floor jack under jack support while keeping an eye on hydraulic pipes, throttle rod and fuel lines ; 4x4 propeller shaft will separate on its own. Wheel chocks come in handy for the front tires when moving forward. This should expose your release bearing and clutch area. Notice the grease zerk on the bearing hub. Mine just needed grease to quieten it down.
I applied a light coat of silicone on the bell housing before join up. Reverse the order to re-assemble. Clutch now works fine and no squeal. Good luck if you need to split your 4850.
Here goes:
Disconnect battery cables. Remove engine hood and side panels.
Remove steering wheel adjustment covers and dash to access wiring; disconnect spedo. cable & necessary plugs/wiring; Shut off fuel and disconnect the two rubber fuel hoses(plug them); remove 4WD propeller shaft cover under tractor(shaft will sepatate on its own when separating); Drain hydraulic oil; Build jack support and bolt it to clutch adjustment side openings.(see photos); block the front axle to the frame to prevent rocking; Jack and support tractor under rear draw bar and under trans.; ***8230;.let air from rear tires to rest on supports; disconnect throttle rod ; disconnect hydraulic lines, one has coupling under foot rest on rhs and 2nd at the hydraulic filter(3 bolts). They will slide fwd. when separating); using floor jack, jack front section under front jack support enough to support weight only.; remove all bellhousing bolts.
Adjust front tire pressure to keep front section level; roll front section away using floor jack under jack support while keeping an eye on hydraulic pipes, throttle rod and fuel lines ; 4x4 propeller shaft will separate on its own. Wheel chocks come in handy for the front tires when moving forward. This should expose your release bearing and clutch area. Notice the grease zerk on the bearing hub. Mine just needed grease to quieten it down.
I applied a light coat of silicone on the bell housing before join up. Reverse the order to re-assemble. Clutch now works fine and no squeal. Good luck if you need to split your 4850.
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