National Crane Published 5-27-2018 Control # 039-06 2-23
800D OPERATION
ANTI-TWO-BLOCK WEIGHT INSTALLATION
To prevent the hoist cable from slipping out of the ant-two-
block weight, rig the weight as shown in Figure 2-11.
.
ATB Switch Lanyard
Upper Quicklink
Chain 16 in. long (40 cm)
Load Line
Lower Quick Link
ATB Weight
PROPER ATB
WEIGHT RIGGING
9367
FIGURE 2-11
The anti-two-block chain must be
installed between the slot in the
weight and the hoist cable.
Anti-two-block Weight
hoist
Cable
Slot
Chain Length
16 inches (40 cm) Do
not shorten the chain.
Upper Link
Lower Link
Fo
r
Reference
Only