SINGLE HOIST DRUM REEVING
Extended Upper Boom Point on #79A Top
FIGURE 4-79
6 Part
4 Sheave Lower Point
1-1/8 in (28 mm) Wire Rope
4 Part
3 Sheave Lower Point
1-1/4 in (32 mm) Wire Rope
Standard Arrangement —
Reeve Lower Point from Left to
Right when Drum 1 is Used
Optional Arrangement —
Reeve Lower Point from Right to
Left when Drum 2 is Used
From Drum 1
From Drum 2
Boom Top Wire
Rope Guide
8 Part
4 Sheave Lower Point
1-1/8 in (28 mm) Wire Rope
6 Part
3 Sheave Lower Point
1-1/4 in (32 mm) Wire Rope
From Drum 1
From Drum 2
Boom Top Wire
Rope Guide
4-229