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catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 2355
Experience:  Field service technician for CAT 19 years.
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I have a cat 92o that sat for a year and now it doesn't move

Customer Question

i have a cat 92o that sat for a year and now it doesn't move when i put it in gear, oil level is good and changed the trany filter
JA: What is the complete model and serial number of your machine?
Customer: cat 920 62k12943
JA: Are you fixing this yourself? What have you tried so far?
Customer: yes, change filter checked linkage and parking brake
JA: Anything else you want the construction mechanic to know before I connect you?
Customer: brake clutch pedal is leaking a little air threw the diafram
Submitted: 11 months ago.
Category: Construction and Road Equipment
Expert:  catmastertech replied 11 months ago.

Hello, I am sorry no one could help you earlier, I hope this is not too late to be helpful.

Drain the oil from the transmission and remove the suction pipe from the bottom of the transmission that runs up the side or the transmission, Replace the seals and check the tube for holes. Also try filling the filter with oil to the top so some of it will run back into the pump.

If this does not help, take a pressure reading at the test port on the transmission filter. 300 to 400 psi is good. If you don't get a reading, repair or replace the transmission pump.

If you have pressure at the filter, the problem is in the transmission control valve.

Please let me know if I can help you further.