Discussion:
Toyota 8FD50U forks won’t lower, valve leaking hydraulic oil

Hello,

I have a Toyota model 8FD50U serial number 10996 forklift. After you start the forklift and raise the forks for the first time of the day, you have to hold the handle forward as if you are lowering the forks for 40 + seconds before they will lower, typically once you've done that the lift will raise and lower properly.

The control valve has two ports on top, one is flat/flush and has a Allen head and the other is a hex bolt that looks like a plug, the hex bolt one appears to leak hydraulic fluid. If the machine sits overnight it will leave a 3 inch diameter oil spot on the floor below.

I had the local dealer come check it out, when the tech hooked up the computer, he could raise and lower the forks without any problem electronically with his computer.

The hydraulic fluid level is good, the leak appears to have gotten worse recently. I can't get the dealer to call me back for service so I am trying to fix myself.

What could be the issue? Where can I purchase parts and a manual?

Thank you for your assistance.
  • Posted 4 Jul 2022 12:58
  • By Jake_VanReenen
  • joined 4 Jul'22 - 1 message
  • New York, United States

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 …
September 23-25, 2025 - SÃO PAULO, Brazil
October 15-16, 2025 - Las Vegas, United States
November 25-26, 2025 - Singapore, Singapore
Fact of the week
The dot-com bubble, a period of large and rapid investments in internet-based companies, peaked in 2000 and saw the Nasdaq Composite index rise by 579%. Then the bubble imploded. As the value of tech stocks plummeted, cash-strapped internet start-ups became worthless and collapsed.
Nagano NUL120-6
Yokohama, Japan
Used - Sale
TCM FHD105Z
Yokohama, Japan
Used - Sale

PREMIUM business

Noblelift
Global leader and manufacturer of high quality electric, lithium-ion, and IC material handling equipment.
Movers & Shakers
Laura Ness Owens Laura Ness Owens
Chief marketing officer, Bobcat Company
Chief commercial officer, Teradyne Robotics
CEO, MHEDA
President, European Rental Association (ERA)
UN Forklift FBR25NQC3
HANGZHOU, Zhejiang, China
New - Sale
SNORKEL A46JE
Yokohama, Japan
Used - Sale

PREMIUM business

Yale Lift Truck Technologies
Yale offers a full line of forklifts to help customers adapt to today's demanding supply chain.
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
Fact of the week
The dot-com bubble, a period of large and rapid investments in internet-based companies, peaked in 2000 and saw the Nasdaq Composite index rise by 579%. Then the bubble imploded. As the value of tech stocks plummeted, cash-strapped internet start-ups became worthless and collapsed.