281" wide and fit a 3/16" O ring I have been doing this mod for over thirty two years and never once had a leak in the lift piston ,Incidentally you can now buy a piston with the O ring attached. Please note to adjust the hydraulic system properly requires service tools,the information I have given is only if you have not adjusted anything.Īnother thought When you remove the hydraulic lift piston there are three cast piston rings this is an area which quite often leaks oil and allows the linkage to creep down When I overhaul a pump I remove the piston and ring nearest the Head of the piston and machine the groove to. When the lift cover is properly assembled there should be no noticeable difference in effort to operate both levers through the range ,put the position control lever in the transport position and move the draft lever from up to down while holding the main control lever lightly it should respond to the operation of the lever ,do the same with the position control lever,put the draft lever in the up position and move the position lever from transport to down and back again once satisfied spring the position control lever past the quadrant stop or undo and slide it down out of the way ,this will allow you to have a look at the function of the pressure control operation if all is well refit the lift cover and refit the roller Fill the hydraulic system up to the bottom hole on the side plate this will be enough oil to test the hydraulics ,if you put the bottom bolt in loose this will stop the oil leaking onto your nice clean workshop floor.
#Massey ferguson draft control position manual
Massey Ferguson 375 4WD Horse Power: 75hp Transmission: Manual Engine: 4.41D No. Draft Control, Position Control Response Control, Constant Pumping: Pump Type: 4 Piston, Ferguson Pump: Oil Flow. Ĭheck this out ,take time to have a good look don't rip it apart until you are sure, If you do have to take it apart remove the small spring from the position control cam arm first ,it makes it a wee bit easier when you get to the bit when you need three hands Ha Ha. Hydraulic Position Control High P.T.O Power Spring Suspension Deluxe Seat, SKU: mf3854wd Category. If you look at both the Draft and Position control levers They have rollers ATTACHED to the levers The ROLLERS SHOULD CONTACT THE TOP of the cam control arms on both the Draft and the Position control. Assuming that you did not adjust or undo either of the two draft and position cam arms, These are the two flat plates with what you could say a curve on the end ,they are attached to the lift cylinder assembly via a support plate.
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