Discussion:
control valve

control valve is not working on "mast down ". All functions are working as suppose to.Mast UP is good ,but down is not being able to lower it.Initially spool was damaged and bypassing (still working), after re-chroming and resizing spool
customer reinstall valve and now doesn't work. Electrical signal is going to coils and coils are ok. Is there pressure sensor some were ? I can't get my hands on hyd. schematic. Any help will be much appriciated.
Thanks
Lubo
  • Posted 12 Mar 2024 01:47
  • By Lubo_Blazek
  • joined 12 Mar'24 - 2 messages
  • British Columbia, Canada
Showing items 1 - 2 of 2 results.
Tkanks we will check on this tomorrow morning.
  • Posted 15 Mar 2024 10:11
  • By Lubo_Blazek
  • joined 12 Mar'24 - 2 messages
  • British Columbia, Canada
Is the mast elevated? If so and it won't lower it sounds like it is a problem with the velocity fuse which is located at the base of the cylinder behind the hose fitting. If the mast in elevated and won't come down then you will have to jack up the mast to take the pressure off the cylinders and it should come down.
  • Posted 15 Mar 2024 09:52
  • By duodeluxe
  • joined 11 Feb'05 - 923 messages
  • United States
duodeluxe

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.

Global Industry News
edition #1277 - 16 April 2026
In this week’s Forkliftaction News , we look at how automation continues to be an area of rapid advancement for the materials handling sector, as we saw at LogiMAT 2026, but not everyone is convinced of its value - yet... Continue reading
Movers & Shakers
Justin Byma Justin Byma
VP global product manager and strategy, Hyster-Yale Materials Handling
Chief operating officer, TVH Americas
Chief financial officer and treasurer, Universal Logistics Holdings
Director of aftermarket, Noblelift North America
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY
Terberg YT223
Balling, Denmark
Used - Sale
Tusk 350CGH20
Coraopolis, Pennsylvania, United States
Used - Sale & Hire

PREMIUM business

RAEDER-VOGEL
Innovative high-quality wheels and castors for the forklift industry.
Fact of the week
Around 8-10% of people grind their teeth at night. The process is called sleep bruxism, and most people aren't even aware they're doing it.