Specifications

89
sustained by upper retaining rollers and lower side rollers. As we mentioned above,
the mast assembly and lift brackets are designed with rigidity, stability and smooth
operation in mind.
Furthermore, the finger bar and lift brackets are made into one body construction
using high tension steel to improve the durability. This meets the ISO Standards.
The two forks installed on the finger bar are made of special alloy steel which has
been subjected to heat treatment.
The fork pin fastens the fork on the definite position. When adjusting the
clearance of the fork, pull the fork pin turn 1/4 circle, the fork clearance must be
adjusted according to the loaded goods.
8.4 Roller position
There are three kinds of rollers, main roller, side roller group and side roller. They
are separately mounted on the inner mast, outer mast and lift bracket. The main
rollers sustain the main loads from front, which can’t be adjusted, and rear direction
and the side rollers sustain the side loads with the left and right side clearance
adjusted by the gasket group, this will make the inner mast and lift bracket move freely.
See Fig8.2.
Fig8.1 Mast (8t)
1. Fork
2. Lift bracket
3. Lift chain
4. Inner mast
5. Outer mast
6. Tilt cylinder
7. Lift cylinder