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Discussion Forum

Ford 550 tranmission wont go forward

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almostthere

03-01-2008 07:49:48




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I have a 550 that will go in reverse with no problem. My shift lever will go in forward but the transmission will not engage. it's the torque converting transmission case. Any advice on where to start troubleshooting?




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Roy Suomi

03-01-2008 19:15:08




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 Re: Ford 550 tranmission wont go forward in reply to almostthere, 03-01-2008 07:49:48  
Underneath the machine right behind the engine , you will find a sheetmetal plate..Pull the plate..Inside there you will find a tube with a plug . Remove the plug and install a 200 psi gauge..This will indicate operating pressure of the transmission..Whats it read in forward at half throttle..Stabilizers down and boom down holding machine off the ground..Gearbox in neutral.. Are we sure the reverser lever is actually going fully in gear..There is a blocking valve inside the clutch housing that prevents high rpm shifts..Sometimes it sticks so the spool won't move far enough to energise the forward clutchpack..If you have no pressure or very low pressure in forward you will need to overhaul that reverser unit..Best info I can give without seeing the machine..

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