SET-UP AND INSTALLATION 18000 OPERATOR MANUAL
4-126
Published 12-05-17, Control # 032-23
LOAD BLOCK REEVING
Load Block Identification
See the Boom Assembly Drawings at the end of this section
for a complete list of load blocks and weight balls available
for this crane.
Load Block Handling
Each load block as two lifting lugs as shown in Figure 4-73,
View A.
The load blocks can be stood up for reeving as shown in
Figure 4-73
, View B.
Wire Rope Specifications
See Wire Rope Specifications chart in Capacity Chart
Manual for the following load block reeving information:
• Parts of line required to handle desired load
• Wire rope length required for various boom lengths and
parts of line
• Maximum spooling capacity of load hoists
Wire Rope Installation and Maintenance
See Wire Rope Installation in this section for instructions:
• Installing wire rope on drums
• Anchoring wire rope to drums
Duplex Hook
Attach the load so it is balanced equally on the hook. Lifting
slings must be within angles given in Figure 4-72
to achieve
maximum hook capacity. The duplex hook has a hole to
which an optional shackle can be attached as shown in
Figure 4-72
.
Guide Sheaves and Drums
See Figure 4-76 for identification of the load drums and
guide sheaves.
Once wire rope is routed through the guide sheaves, be sure
to install rope guard pins, bars, and rollers to retain the wire
rope on the sheaves. Wire rope and sheaves can be
damaged if rope is not properly retained on sheaves.
Load Block Reeving
See Figure 4-74 and Figure 4-75 for dead-end locations and
components in the lower and standard upper boom points.
See Extended Upper Boom Point Assembly Drawing at the
end of this section for dead-end locations and components in
the extended upper boom point.
See Figure 4-77
, Figure 4-78, and Figure 4-79 for load block
reeving. Reeving the load block in any manner other than
shown can result in excessive block twist.
WARNING
Falling Load Hazard!
Use only a load block with a capacity equal to or greater
than load to be handled.
Avoid overloading load block sheave bearings. Attach
load to duplex hook so load hangs straight.
Load block can fail if overloaded, allowing load to fall.
WARNING
Falling Load Hazard!
Limit load to be handled with shackle to capacity of load
block or shackle, whichever is less.
Load block or shackle can fail if overloaded, allowing load
to fall.
CAUTION
Wire Rope Damage!
Do not hoist load block closer to boom point than shown
on Range Diagram in Capacity Chart Manual. Improper
fleet angle or contact with other parts can damage wire
rope.
FIGURE 4-72
Duplex
Hook
A802
0-45° 0-45°
Load
Shackle
(optional)