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Regular Contributor

Re: Cat 920 Powershift trans failure

you mention the neutraliser & brake pedal feels as if it is engaged or stuck down then suggest disconnect air line from neutraliser & brake pedal going to the transmission neutraliser valve and see it transmission drives. If so then brake treadle valve is defective and should be replaced

New member Aod
New member

Cat 920 Powershift trans failure

Was plowing for 8 plus hours, no burning smell , no slippage, all at once the trans stopped working. Fluid was full and clean, I did drain and clean the filter and refill with fresh fluid. Feels like thethird pedal neutralizer is engaged, and won’t go back to engage. I also removed the valve body cover and manually stroked the nutralizer valve, it spring does push it it back. I’m at a dead end . Any one have any suggestions to try. Thanks