Discussion:
drive unit eating top pinion shaft bearings

a little history on the unit. we bought 8 of these in 2014. 7 of the 8 had new drive units installed uniter major component warranty due to broken teeth in the oil when performing annual pm.

local dealer did not extend the major component warranty. unit was 1 month out of existing warranty when the dive unit started making agrinding noise. pulled drive unit out and found that the top pinion shaft bearing was bad. had a rough spot on the inner part of the race. checked the drive unit pump and it was operating as normal. replaced top and bottom pinon shaft bearings, reassembled and yay. quiet as a kitten.

8 months later, same truck, same noise. top bearing appears bad again. is anyone else having issues with the crown drive units in the RM6095s? seems to me that crown put an undersized DU in these trucks, especially heavy usage truck that i have here in my warehouse. "i have 3 of my initial 8 late 2014s that are already over 10k hours.
  • Posted 9 May 2019 01:04
  • By Bazz
  • joined 30 Jan'19 - 3 messages
  • Maryland, United States
Showing items 1 - 1 of 1 results.
We had a lot of similar issues with our Crowns doing this as well. the cradle that the drive unit bolts to cracked. We had to have crown come out and install updated cradles on about 20 units. Check all welds as well as machined areas for stress cracks. This issue lead to cone bearing getting destroyed and drive units snaping shafts.
  • Posted 24 Apr 2025 03:02
  • By Jared_Riley
  • joined 24 Apr'25 - 3 messages
  • Iowa, United States
CraneLifter2000

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.

Upcoming industry events …
October 15-16, 2025 - Las Vegas, United States
November 12-13, 2025 - London, United Kingdom
November 13-14, 2025 - Berlin, Germany
Fact of the week
In 1923, French tennis player René Lacoste was promised a crocodile leather suitcase by his captain if he won his next match. He lost the match but won the nickname "the crocodile" which he had sown onto his tennis attire. Ten years later he launched the first polo shirt and Lacoste, the first brand to feature a logo on its clothing.

PREMIUM business

Hangzhou Manforce Material Handling Equipment Co., Ltd
Specializing in Nichi and conventional forklift products, we create significant value for all our partners!
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Toyota 7FGCU35
Flesherton, Ontario, Canada
Used - Sale
TCM FD80Z7
TCM FD80Z7 1990
Yokohama, Japan
Used - Sale

PREMIUM business

Hangzhou Manforce Material Handling Equipment Co., Ltd
Specializing in Nichi and conventional forklift products, we create significant value for all our partners!
Global Industry News
edition #1242 - 7 August 2025
In this week’s Forkliftaction News , we take a closer look at the main theme coming out of the recent CeMAT Australia event in Sydney: automation; why some are holding back and why not everyone will automate... Continue reading
Fact of the week
In 1923, French tennis player René Lacoste was promised a crocodile leather suitcase by his captain if he won his next match. He lost the match but won the nickname "the crocodile" which he had sown onto his tennis attire. Ten years later he launched the first polo shirt and Lacoste, the first brand to feature a logo on its clothing.