Skyjack SJIII-3220:
speed issue

Hello,

When driving on Low speed (with fully lowered platform), no problems were observed.
When driving in Hi speed (with fully lowered platform), the left rear wheel seems to be blocked on forward. On reverse, it seems that is moving, but struggling. No issues with the left wheel.
The brake is releasing.

I checked the diodes at the hydraulic tray, seems OK. Then I have disconnected the cable of the coil of the Speed B valve, and the platform was driving on LOW speed only, no matter the position of the toggle switch, with no issues with the rear left wheel. Then I swapped the valves from the other lift I have, but nothing changed.
So, could you give some advise and what could be the problem.

Thank you in advance for your help.
  • Posted 5 Aug 2020 23:43
  • Discussion started by Rosen_Bilchev
  • Bulgaria
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Showing items 1 - 3 of 3 results.
That's great!
  • Posted 14 Jan 2021 07:57
  • Reply by Scissor_God
  • California, United States
Scissor God
Shadow722@live.com 209-846-5836
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Sorry for the late reply. I got it fixed. There was a metal debries in one of the valves. Got it cleaned, and no problems so far.
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Did you get your lift fixed yet? I had this same problem and found the drive motor was broken.
  • Posted 14 Jan 2021 03:31
  • Modified 14 Jan 2021 03:34 by poster
  • Reply by Scissor_God
  • California, United States
Scissor God
Shadow722@live.com 209-846-5836
Post a Reply Report this post

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