Hi guys.
This grader I'm looking at won't select reverse. The engine loads up and the higher gear I select in reverse the engine will stall. I inspected the C3 B3 B4 accumulator and found the housing scored and alloy spool jammed. I have put a second hand valve in out of another grader and got similar results. Pressure at the trans control valve read B4 0psi, B3 200psi and C3 30-40psi.Any suggestions?
This grader I'm looking at won't select reverse. The engine loads up and the higher gear I select in reverse the engine will stall. I inspected the C3 B3 B4 accumulator and found the housing scored and alloy spool jammed. I have put a second hand valve in out of another grader and got similar results. Pressure at the trans control valve read B4 0psi, B3 200psi and C3 30-40psi.Any suggestions?
JD 670-A No Reverse
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