Item Description
1 Lowerworks
2 Upperworks
3 Boom Butt
4 Boom Stop (physical)
5 Boom Butt Wire Rope Guide
6 Drum 3 (luffing hoist or auxiliary)
7 Insert: 6 m (19.7 ft) with Sheaves
8 Guide Sheaves (in insert)
9 Load Lines
10 Insert: 3 m (9.8 ft)
11 Insert: 6 m (19.7 ft)
12 Boom Straps
13 Insert: 12 m (39.4 ft)
14 Load Block
15 Weight Ball
16 Boom Top
17 Boom Top Wire Rope Guide
18 Lower Boom Point
19 Upper Boom Point
20 Fixed Jib
Figure 1-3. Identification and Location of Components
42m (137.8 ft) boom shown
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