1. Home
  2. Forums
  3. Maintenance & Troubleshooting
  4. speed issue

Discussion:
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
  • By Rosen_Bilchev
  • joined 5 Aug'20 - 2 messages
  • Bulgaria
Post a ReplyReport this post
Showing items 1 - 4 of 4 results.
Hello sir.

My 4632 is having the exact same problem 100% the way you described. my question is which valve, or valves did you have to clean, and how did you clean them.

Much appreciated.
  • Posted 29 Jun 2022 10:39
  • By Gino_Dandrea
  • joined 29 Jun'22 - 1 message
  • Ontario, Canada
Post a ReplyReport this post
That's great!
  • Posted 14 Jan 2021 07:57
  • By Scissor_God
  • joined 30 Dec'20 - 26 messages
  • California, United States
Scissor God
Shadow722@live.com 209-846-5836
Post a ReplyReport this post
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.
  • Posted 14 Jan 2021 05:24
  • By Rosen_Bilchev
  • joined 5 Aug'20 - 2 messages
  • Bulgaria
Post a ReplyReport this post
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
  • By Scissor_God
  • joined 30 Dec'20 - 26 messages
  • California, United States
Scissor God
Shadow722@live.com 209-846-5836
Post a ReplyReport this post

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY

Showcased in the Virtual Expo

Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.
Terberg YT220
Terberg YT220 2004
Balling, Denmark
Used - Sale
Enforcer FD50T-MMA
Enforcer FD50T-MMA
Braeside, Melbourne, Victoria, Australia
Hire
|

PREMIUM business

RAEDER-VOGEL
Innovative high-quality wheels and castors for the forklift industry.
RAEDER-VOGEL
From the forum discussions …
"ForklifttSteve from Mississippi seeks advice on resealing a leaking valve cover on a Mitsubishi 4G64. Ron K from North Dakota suggests 'Use the loctite flange sealant. It has been the best so far I've used in 30 years.'"
ForklifttSteve, United States
Read & Post in our Forums
Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.