Specifications

90
Fig8.2 Roller mounting
8.5 Adjustment of lifting system
a. The clearance between the inner mast and the guide plate of the outer mast is
0.5-1.0mm, which is adjusted by the spacer of the guide plate. The clearance between
the side roller and the channel beam is 0.3-0.8mm, which is adjusted by the axial bolt
inner the roller.
b. Make the forks descend to the ground, adjust the lifting chain to assure the
distance between the center of lift bracket lower rollers and the bottom of inner mast is
smaller than 25mm.
c. Make the mast assembly tilts backward, adjust the pulling force of lift chains
and let the tightness of lift chains be equal.
d. Make use of the spacer of the lift cylinder to adjust the error occurred between
the right and left cylinders in height.
8.6 Maintenance and adjustment
8.6.1 Adjustment of lift cylinder (Fig8.3)
When replace the lift cylinder, inner mast or outer mast, we shall readjust the
stroke of the lift cylinder as following:
(1) Install the piston rod in the upper beam of the inner mast without shims.
(2) Lift the mast slowly to the max. stroke of the cylinder and check the two
cylinders synchronize or not.