Discussion:
Noise coming from drive motors in and out of turns

Hey, anyone seen or heard on a 4500AC a bearing noise coming from both drive motors going in and out of turns.
Is this normal? Maybe brake rotors floating on a splined shaft or something inside the drive unit? Anyone have a TSB on this?
Anyone run into this?
  • Posted 15 Jan 2013 08:48
  • By 1Crusader
  • joined 5 Oct'10 - 52 messages
  • California, United States
I didn't do it, nobody saw me and You can't prove a thing...
Showing items 1 - 2 of 2 results.
Thanks for the feedback.
I don't have a pdf file for this unit do the brakes come apart easly? I'm beginning to think it could be something to do with the brakes. Thanks again.
gunkbegone at yahoo dot com
  • Posted 22 Jan 2013 12:54
  • By 1Crusader
  • joined 5 Oct'10 - 52 messages
  • California, United States
I didn't do it, nobody saw me and You can't prove a thing...
I have seen bad friction pads cause a noise. Easy to look for. Otherwise probably a drive unit.
No TSB that i can see.
  • Posted 22 Jan 2013 12:17
  • By cheek
  • joined 6 Nov'09 - 25 messages
  • Alberta, Canada

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

PREMIUM business

RAEDER-VOGEL
Innovative high-quality wheels and castors for the forklift industry.
Movers & Shakers
Steven Ballerini Steven Ballerini
Chief executive officer, Australian Supply Chain & Logistics Association (ASCLA)
Engineering policy lead, Logistics UK
Regional manager - Eastern Canada, Associated Equipment Distributors
Vice president - IT & EP OEM parts, Big Joe Forklifts
Global Industry News
edition #1257 - 20 November 2025
In this week’s Forkliftaction News , Toyota Industries Corporation confirms it has settled a class-action lawsuit in the US which centred around its 2023 emissions cheating scandal. Find out how much the class-action cost it... Continue reading
Movers & Shakers
Steven Ballerini Steven Ballerini
Chief executive officer, Australian Supply Chain & Logistics Association (ASCLA)
Engineering policy lead, Logistics UK
Regional manager - Eastern Canada, Associated Equipment Distributors
Vice president - IT & EP OEM parts, Big Joe Forklifts