Hyster J40XNT:
drive motors working but one not accelerating

we did a brakes overhaul for the lift , but after we reinstalled both
drive systems into the chassis and plugged back in all the connectors
we turned on the lift and depressed the accelerator pedal. both wheels started to turn but the right side wheel accelerated and the left side wheel stayed at one speed. what should I look at?we verified that the sensors were good and that the motor clutch was working.
  • Posted 1 May 2018 02:12
  • Discussion started by wayne_m
  • trinidad, Trinidad and Tobago
Showing items 1 - 5 of 5 results.
gear inside the box may have got damaged or fitted the wrong way round..just a thought
  • Posted 15 May 2018 00:50
  • Reply by stackerhacker
  • glasgow, United Kingdom
Hi again. We finally got a chance to recheck the lift. Even though we had put the left side encoder on the right side and the right side one on the left side, the lift still remained slow on the left side no matter if the lift was driving straight or turning.
What we did notice was that the lift turned slower clockwise than when it was turning anti-clockwise.
I will look into the steer position sensor as you suggested.
thanks
  • Posted 11 May 2018 12:38
  • Reply by wayne_m
  • trinidad, Trinidad and Tobago
If you are not getting codes, It probably is. It could be the steer position sensor also.
  • Posted 2 May 2018 22:20
  • Reply by BREWSKI
  • Nebraska, United States
Thanks Brewski.I actually took the encoder from the right side and
exchanged it with the one from the left side.
Strangely we observed that the lift accelerated equally with both wheels.the operator told me later that the lift worked well for several hours then went back to having one wheel moving very slow compared to the other.I have not checked it out as yet, but will update my info when I do. Could it still be the encoder?
  • Posted 2 May 2018 12:58
  • Reply by wayne_m
  • trinidad, Trinidad and Tobago
Sounds like a speed encoder problem. Check the encoder plug and socket and make sure the pins and sockets are locked in place and making connection.
  • Posted 1 May 2018 02:34
  • Reply by BREWSKI
  • Nebraska, United States

Post your Reply

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.

Having trouble using the Discussion Forums? Contact us for help.

PREMIUM business

Yale Lift Truck Technologies
Yale offers a full line of forklifts to help customers adapt to today's demanding supply chain.
Latest job alerts …
Louisville, KY, United States
Louisville, KY, United States
Dubuque, IA, United States
Hangcha CPYD25XW71F-JC
Flesherton, Ontario, Canada
New - Sale
Terberg YT182
Balling, Denmark
Used - Sale
Movers & Shakers
Linda Häkkilä Linda Häkkilä
vice president, Investor Relations, Konecranes
vice president operations, Elokon Group
President, EP Equipment Europe
Senior vice president human resources, Kalmar
Upcoming industry events …
May 09-11, 2025 - Bangalore, India
October 21-23, 2025 - Panama City, Panama
July 15-17, 2025 - Hong Kong, Hong Kong
Upcoming in the editorial calendar