Discussion:
Power steering assist is marginal

Looking for where to test steering pressure, and where to locate/ adjust relief valve. Thanks-

S80XL
D004D008877X

4.3 GM
  • Posted 6 Jan 2022 13:32
  • Modified 6 Jan 2022 13:33 by poster
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services
Showing items 1 - 2 of 2 results.
Excellent. Thanks Fishmech-
  • Posted 14 Jan 2022 14:13
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services
Steve,

Steering should be at 1400 PSI. there should be a test port at the steer valve. You can test at the steer line for a very short time. The hydraulic pump has a priority valve installed specific for the steering. May need to start there. Also, the return line from the steer valve goes to the brake assist. The problem could be the pump or the steer valve. Hold the brake down and see if it is easier to turn. Good Luck.
  • Posted 14 Jan 2022 05:58
  • By Fishmech
  • joined 12 Jul'17 - 370 messages
  • Virginia, United States
The hard to do we do right away. The impossible just takes a little longer.

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Morgantown, Pennsylvania, United States
Used - Sale & Hire
Upcoming industry events …
November 4-6, 2025 - Jaarbeurs, Netherlands
November 14, 2025 - Melbourne, Australia
December 10-11, 2025 - Louisville, United States
Global Industry News
edition #1254 - 30 October 2025
In this week’s Forkliftaction News - As an industry, our focus is often on key economic indicators such as productivity and profitability, but we all know our sector simply wouldn’t exist without the skilled operators who bring the machinery to life... Continue reading