Legend for Figure 58.
A. TWO-STAGE MAST B. FREE-LIFT MAST C. THREE-STAGE MAST
1. OUTER WELDMENT
2. INNER WELDMENT
3. INTERMEDIATE WELDMENT
4. HOOK
5. FREE-LIFT CYLINDER
6. CROSSMEMBER
7. CROSSMEMBER
OVERVIEW
The lifting system is a two-stage rolling telescopic
mast, with the outside mast typical of a “C” shaped
end face, and the inside mast in a “J” shaped end
face. The fork and the bracket comply with the
international standard, with a free lift of about 150mm
150 mm (5.9 in.) during operation.
Measurement
A 54 mm (2.13 in.)
B 15 mm (0.59 in.)
C 18 mm (0.71 in.)
D 38 mm (1.50 in.)
E 92 mm (3.62 in.)
F 120 mm (4.72 in.)
G 160 mm (6.30 in.)
Figure 59. End Face of Inner Mast
Measurement
A 55 mm (2.17 in.)
B 15 mm (0.59 in.)
C 120 mm (4.72 in.)
D 160 mm (6.30 in.)
Figure 60. End Face of Outer Mast
INSIDE AND OUTSIDE MASTS
The mast assembly is composed of an inside, middle,
and outside masts (the middle masts is only for the
3FFL mast). The lower portion of the outside mast is
connected to the drive axle, with most of the weight
supported by the axle housing. The tilt cylinder is
connected to the frame of the truck and the outer mast
channel. The mast is able to tip forward and reverse.
Lifting System 8000 YRM 2199
62
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