1. Home
  2. Forums
  3. Maintenance & Troubleshooting
  4. Forklift won't lift or lower mast

Discussion:
Forklift won't lift or lower mast

Gm everybody I have a komatsu fg18shtu-20
Which the yellow and dark gray forklift stay rise trying to lower mast I know it have 3 mast lock out under the hydraulic Control trying to find out why mast won't lift or lower any help I appreciate
  • Posted 15 Jun 2021 01:03
  • By Steven_Orellana
  • joined 15 Jun'21 - 5 messages
  • New Jersey, United States
Steve
Post a ReplyReport this post
Showing items 1 - 2 of 2 results.
Sorry to get back you so late but I found the problem it was the check Valve thats in from mast where the hydraulic hose is connected to a block
  • Posted 7 Aug 2021 04:50
  • By Steven_Orellana
  • joined 15 Jun'21 - 5 messages
  • New Jersey, United States
Steve
Post a ReplyReport this post
Try to jumper power to the lift/lower hydraulic lock solenoid. If it still does not allow lift or lower then it's bad. I have had them go bad on several trucks.
  • Posted 28 Jul 2021 14:06
  • By 1CrownTech
  • joined 23 Jul'21 - 117 messages
  • Washington, United States
1crowntechnician@gmail.com
Post a ReplyReport this post

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 in the editorial calendar
MANAGING MIXED FLEETS
Oct 2025
ASSET FINANCE
Nov 2025
Ask us about editorial contribution
Terberg RT403
Terberg RT403 2018
Balling, Denmark
Used - Sale
Hangcha CPYD25XH21JC
Hangcha CPYD25XH21JC
Flesherton, Ontario, Canada
New - Sale
|

Showcased in the Virtual Expo

Fact of the week
At the opening ceremony of the Sydney Harbour Bridge in 1932, marching bands were instructed to walk out of step as they crossed the bridge. This unusual directive was given as a precaution due to concerns about the bridge's structural integrity during its early use.