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Hi, have recently experienced similar issues.
How did you get on repairing?
1 st incidence we was due to oil not coming back out of lift cylinder until we removed the velocity fuse / anti drop valve / safety valve.
Replaced the velocity fuse and truck appears ok.
This is the first time I have come across a velocity fuse that stops the descent / oil 100%. This I believe explains why the platform will no lower at all once the platform is at 100% lift height and the velocity fuse has tripped, (line pressure holding valve shut).
Previously all velocity fuses on forklifts I have seen have a controlled lowering rate once the velocity fuse is tripped / activated.
2nd incidence of wave stuck in the air is happening today, see what results??
  • Posted 31 Jan 2023 08:45
  • By ralf
  • joined 10 Feb'16 - 5 messages
  • New South Wales, Australia
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Tailift Material Handling USA Inc
Part of Toyota Industries Group - Leading manufacturer of High-quality machines.
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