Discussion:
RR5700 Lowering problem

The forks on a RR5700 just stop lowering...no wrench. I took PVL out, inspected & cleaned it, reinstalled it...no lower. I put a new valve in, calibrate it and i'm back in business. Few days later the same thing occurs...same repair procedure...same result. This has happened 4x to the same truck. Crown says they're experiencing no valve issues. Any thoughts??
  • Posted 21 Aug 2014 22:04
  • By jeffrey_r
  • joined 23 Jul'11 - 10 messages
  • Pennsylvania, United States
Showing items 1 - 3 of 3 results.
I'm seeing a velocity fuse theme...thank you for your suggestions. I will advise on the outcome.
  • Posted 28 Aug 2014 02:33
  • By jeffrey_r
  • joined 23 Jul'11 - 10 messages
  • Pennsylvania, United States
try going into performance menu and change lower speed from 9 to 8
have had no issues of valve locking but have had tanks overflowing so i change this as aprecaution on all 5700's
  • Posted 25 Aug 2014 17:34
  • By crownie
  • joined 8 Sep'08 - 151 messages
  • Victoria, Australia
Is the velocity fuse locking out, it can do when bouncing mast lowering, lower or change raise and lower ramp speeds, and calibrate all hydraulics, or velocity fuse bottom of l/h 2nd stage lift ram
  • Posted 22 Aug 2014 07:02
  • By southernviking
  • joined 25 Mar'13 - 43 messages
  • South Island, New Zealand

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.

UN Forklift FD40T
HANGZHOU, Zhejiang, China
New - Sale
Toyota 8FGCU25
Flesherton, Ontario, Canada
Used - Sale

PREMIUM business

Zhejiang UN Forklift Co., Ltd
Manufacturer of IC forklifts, electric forklifts and warehouse equipment.
Upcoming industry events …
September 23-25, 2025 - SÃO PAULO, Brazil
October 15-16, 2025 - Las Vegas, United States
November 25-26, 2025 - Singapore, Singapore
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Global Industry News
edition #1238 - 10 July 2025
This week Forkliftaction News is celebrating its 25th anniversary! A wonderful achievement given we launched at a time when just 6% of the world’s population were internet users, according to Internet World Stats . Over the coming weeks, we will be sharing stories about our history and rolling out more celebrations, so keep an eye out... Continue reading