GMT 050
User manual
17
5.3
Operation of the felling grapple
The GMT 050 felling grapple uses the existing two hoses for grapple open and grapple close on the
base appliance. Modifications or adjustments to the carrying vehicle are not necessary.
If ¾ grapple open or grapple close input is applied to the joystick/handle/pedal, the felling grapple will
simply function as a regular timber grapple for the loading and/or relocating of sawn wood.
Grapple open function
If maximum grapple open input is applied, pressure in the grapple cylinder increases. This brings the
felling grapple into the tilt-up position, the position for sawing vertical timber. As long as this input
continues, the felling grapple will stay in the tilt-up position.
As soon as the input stops, the grapple
frame will slowly drop to the tilt-down position.
Tilt up function