Discussion:
Carriage stop lifting

Hello guys, I'm working on a Hyster H280HD. In the morning the lift works fine but after using it awhile the lift pressure drops. The owner had replaced the relief valve and the lift pump, when the pump was replaced it work for about a month then started doing the same thing again, thought pump was defective so replaced it again to only get the same results. (Worked a couple weeks then quit again) with the new pump and the mast bottomed out(all the way up) pressure is 3100 psi. Now it's around 2500-2600 changing the relief valve doesn't affect the pressure. Is there a chance he may of gotten a bad relief valve? It was new from Hyster.
Also it has no stored codes in it during all this
  • Posted 17 Jun 2017 02:15
  • By garland_s
  • joined 18 Nov'16 - 28 messages
  • Tennessee, United States
Showing items 1 - 3 of 3 results.
Just to touch base, it turned out to be the raise solenoid are the control valve. I guess the coil was weak and when it got hot it didn't open the valve all the way. Hope this helps someone later
  • Posted 22 Jun 2017 14:08
  • By garland_s
  • joined 18 Nov'16 - 28 messages
  • Tennessee, United States
Mast lifts about the same with no load, but when it has a load it lifts slower and slower until it finally won't lift at all
  • Posted 17 Jun 2017 05:23
  • By garland_s
  • joined 18 Nov'16 - 28 messages
  • Tennessee, United States
Is the mast lifting slow? If it is not I would replace the relief.
  • Posted 17 Jun 2017 04:46
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, 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.

Toplift Ferrari TFC36-48
Stoney Creek, Ontario, Canada
Used - Sale
USD1
Load Lifter 2414-8G
Flesherton, Ontario, Canada
New - Sale
Latest job alerts …
Wentzville, MO, United States
Cleveland Ohio, United States
Columbia, SC, United States
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.
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
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025