Hyster S60ft F187 basic powershift transmission, GM 2.4 LP engine,
Code 524223-0 (REV pressure OORH) when put in reverse, pressure seems to spike as soon as it goes into gear, both transducers and solenoid valves have been replaced, try xmsn calibration through dash but faults out and will not complete. Last tech even tried replacing vsm and took trans apart to look inside original issue was code 524225-0 (FWD pressure oorh), then changed to both fwd and reverse, now just reverse.
Any wiring diagrams, manuals or advice on what to check for mechanical failures in transmission would be appreciated.
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