Doosan (& Daewoo) G25S:
Shifts to FWD or REV but no power

Upon shifting to FWD (or Rev), I can hear the solenoid on the transmission engage. Pressing the gas, if in a flat area, the forklift will move slighly in the direction of the shift, but it has no power thereafter to move or climb. If I press the gas pedal slighly and release several times while on fwd or rev (seems also,that if I play with the up/down hydraulic) "something" engages and now has power. Upon shifting out and then in again, same problem. Transmission and hydraulic oils are good.
  • Posted 10 Mar 2017 12:53
  • Discussion started by luis_b
  • California, United States
Showing items 1 - 4 of 4 results.
Check the inching adjustment as well as inching valve
  • Posted 24 Apr 2025 03:41
  • Reply by John_Bradley
  • Texas, United States
Jb69
Hi,

We're you able to solve the problem?

I am in Poland now having the same issue with a g15s
Switches gears finely, on flat surface it moves slowly. Even the smallest hill stops it.

Clutch has been professionally reworked already

Pressure problem I guess
Where to search?
What to have a look on?
  • Posted 19 Apr 2025 16:48
  • Reply by Sebastian_K
  • Germany
I have the same issue was this sorted?
  • Posted 7 Jul 2021 18:31
  • Reply by Slattery
  • New South Wales, Australia
You may have a transmission pressure problem which can be resolved very simply. Email my profile for info.
  • Posted 13 Mar 2017 07:02
  • Reply by tom_p
  • Alberta, Canada

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