D6c Trans/steering clutch pressures

mercredi 3 décembre 2014

Started trying to diagnose the pressure issues on my 6c. Steering clutch pressures are below spec at low idle and above spec at high idle.

The steering clutch pistons have been checked & resealed a while back so I don't think that's the problem. (unless I did something wrong)



I pulled the trans pump to see what shape it's in....it looks brand new inside and check dimensions are in new spec.



Thinking the next thing would be to check out the sequence relief valve. Book says to drain bevel gear case & torque converter before pulling valve off. Is that really necessary? Oil level in bevel gear case is well below the valve and torque converter shouldn't have oil that high either. Don't want to drain everything if I don't have to, but don't wan't to loose gallons of oil on the floor either.



Is it necessary to have the valve bench checked for correct flow/pressure? Don't know if anyone at the Cat dealer is old enough to have ever seen one.





D6c Trans/steering clutch pressures

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