John arthur Williams
Member
I have a Komatsu d31px-21 serial number 50077. The dozer will not go forward or backwards but the blade functions operate as they should and I’m not sure where to check pressure for forward and backwards pump
I don’t have any codes or buttons to push on my dashDo you have any action codes showing up on monitor... L01, L02, L03, L04? If so push the "F" key under the exclamation mark, likely F5. This should jump you to the Current Abnormality screen which will list the active the active fault codes that are driving the action codes.