a/c 175 diesel

robert blanchette · Mar 21, 2011

need help with my tractor please as soon as i start up my tractor the lift goes up even in the down or hold position going crazy call robert 912-258-0986 or email or post thanks in advance

Bob Bancroft · Mar 22, 2011

Either a lever or the torsion bar moved to activate the traction booster. Either the linkage, or valve spool, or both, are stuck. You can look in under the plate holding the spool valve and see the linkage hitting against the spool(not pinned to it like the other spools).So you go to work freeing and lubricating as necessary.

kelly kien · Mar 22, 2011

you might have to pull the cap off the back of the spool and tap it ahead with a small hammer

Longmeadow farm · Mar 22, 2011

Look at the position or traction booster feedback linkage. Sometimes the linkage coupler can be spun by inadvertantly hitting it. Additionally, if the hydraulic system has not been used for some time the lower linkage rod may be rusted fast to the housing. If your "valve" was stuck, you'd know it as the tractor will labor against the constant hydraulic demand.

gatz · Mar 22, 2011

kinda hard to see back in there, but here"s a pic of the valve stack on a D17 SIV with the TB valve labeled. Note that it"s not connected to the linkage....it just rides against the actuator arm like was mentioned above.

a/c 175 diesel

robert blanchette

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Bob Bancroft

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kelly kien

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Longmeadow farm

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gatz

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