TM 5-3810-288-12
Figure 2-24. Backhoe digging cable reeving.
ground. Pull the dipper in under the boom, and lower the
2-10. Shovel Conversion
dipper onto wood blocks (fig. 2-22). Crib the base of the
boom as shown in figure 2-22.
a. General.
The truck crane may be
converted to shovel operation by installing the shovel at-
(2) Remove the digging cable, hoist cable, and
tachment. The following components are necessary for
mast suspension cable. Refers to fig 2-23, fig 2-24 and
the equipment conversion; the shovel boom, saddle
block, dipper stick, dipper, boom foot roller assembly,
(3) Use a wedge between the cribbing and
crowd chain tightener and crowd chain, special shovel
boom to remove the weight of the boom from the boom
front and rear drum laggings which are illustrated in
foot pins.
(4) Remove the boom foot pins, and drive the
boom foot pins out of the boom foot lugs, releasing the
Installation.
b.
backhoe boom attachment from the truck crane
revolving frame.
(1) Install the crowd sprocket lagging on the
(5) Drive the carrier slowly, away from the
front drum as instructed on figure 2-27.
backhoe attachment.
(2) Install the split rear drum lagging on the
Caution: Use care when swinging the re-
rear drum as shown on figure 2-26.
volleying frame without a boom, since it will tend to
be unbalanced toward the counterweight end.
(3) Install the crowd chain tightener as in-
structed on figure 2-28.
2-18
