Will not move Forward. Reverse works. No codes - Technical Troubleshooting discussion in Forkliftaction's forums

Raymond 4D-R45TT:
Will not move Forward. Reverse works. No codes

Lift was overloaded and completely shut down the lift. Would not turn on. New system card fixed that issue. Now it will not move forward. Only moves backwards. Tried replacing power card, motor wires, both diodes on the traction heat sink, Q1 is new, regen heat sink has been replaced not too long ago. Motor will engage forward if wires are swapped around.

Posted 4 Aug 2021 13:26
Modified 4 Aug 2021 20:47 by administrator
Discussion started by JakeL
Nebraska, United States

Huh?

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Have you checked the field transistors? Switch positions see if you gain fwd and lose rev. They are what switch directions of current flow.

Posted 23 Aug 2021 08:41
Reply by stam
Ontario, Canada

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Speed is set at 7.5
That has also thrown me for a loop before. I had to triple check to make sure it was set at jax speed.

Posted 5 Aug 2021 03:30
Reply by JakeL
Nebraska, United States

Huh?

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Did you check speed settings? Often the swing reach cards come programmed to 0 mph travel speed and can throw you for a loop until you figure that out.

Posted 5 Aug 2021 03:29
Reply by Jones
Texas, United States

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