380 ft (115,8 m) &
440 ft (134,1 m)
Boom
#55 or 55A Boom Intermediate Suspension
for 140 ft (42,7 m) Mast
Not Required for 100 ft (30,5 m) Mast
Components are identical on
both sides of boom sections.
19
20
21
24
400 ft (121,9 m)
Boom
See Figure 4-46
Item Description Item Description
19 Link 22 Pin with Cotter Pin
(supplied with pendant)
20 Pin with Cotter Pin
(supplied with pendant)
23 Pendant, 7 ft, 3 in (2,2 m)
21 Pendant, 10 ft, 11 in (3,3 m) 24 Pin, 2-1/2 x 7-5/8 in (64 x 194 mm) with
Collar, Retaining Pin, and Cotter Pins
21
24
Store Item 20 here
when not in use.
Store Item 20 here
when not in use.
23
24
21
22
420 ft (128,0 m)
Boom
Figure 4-54
4-192
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