A791
Front Drum
Rear Drum
Lower Boom
Point Sheaves
Rear View
Boom Top
Guide Sheaves
Rear View
Front Drum
Rear Drum
1234567895
Center
Guide Sheaves
over Boom Point
Sheaves 4 and 6
Boom Butt
Guide Sheaves
Rear View
NOTE 1: Hand position the clamps tight against the bearing.
Before tightening bolts, make sure the sheave turns
freely. Tighten the bolts lubricated with SAE 20 oil to
163 Nm (120 ft-lb).
Tighten each side equally to provide an
equal gap. See NOTE 1 for torque value.
Clamp
Bolt
Nuts
Lock Washer
A616
A1209
MCC 9-Sheave
Load Block
Lower Boom
Point Sheaves
Boom Top
Guide Sheaves
4
6
10-Part Continuous Reeving
over Lower Boom Point
Crane Equipped with:
• 66.68 in Wide Drums
• 1-1/4 in Diameter Wire Rope
• Drum Laggings Removed
Rear Drum
Front Drum
FIGURE 4-75