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8-1
GROUP 1 STRUCTURE
SECTION 8 MAST
1. 2 STAGE MAST(V MAST)
20BC7MS01
1
Outer mast
2
Inner mast
3
Roller
4
Tilt cylinder pin
5
Mast support cap
6
Bushing
7
Chain sheave
8
Lift chain
9
Anchor bolt
10
Roller
11
Retaining ring
12
Chain guard
13
Clamp
14
Back up liner
15
Shim(0.5, 1.0t)
16
Shim(0.5, 1.0t)