f. Unreeving the Backhoe Hoist Cable.
(3) Use a wedge between the cribbing and boom to
remove the weight of the boom from the boom foot pins.
(1) Release the rear cable drum brake, and
(4) Remove the boom foot pins, and drive the boom foot
spool the cable from the rear cable drum. Remove the
pins out of the boom foot lugs, releasing the backhoe
cable wedge and pull the cable free of the drum.
boom attachment from the truck crane revolving frame.
(2) Remove the cable wedge from the dead-
(5) Drive the carrier slowly, away from the backhoe
end socket on the hoist padlock sheave, and pull the
attachment.
cable free of all sheaves.
(3) Lay the cable out straight on the ground.
Caution: Use care when swinging the revolving
(4) Roll the cable into a coil and secure it with
frame without a boom, since it will tend to be
wire. Label the cable for future use.
unbalanced toward the counterweight end.
g. Unreeving the Backhoe Mast Suspension Cable.
(1) Pull the dipper in under the boom and
2-9. Shovel Conversion
lower it to the ground.
(2) Slack off on the mast suspension cable
Note. It is the operator's responsibility to request the
and lower the mast forward to rest on the boom.
services of organizational maintenance when converting
(3) Spool the cable off the boom hoist drum.
to shovel operation. Organizational maintenance is
and remove the cable wedge from the drum socket.
specifically responsible for proper installation and
(4) Remove the wedge from the dead-end
removal of the shovel boom stick, and will assist
socket on the gantry A-frame.
operators improper installation of cables and other
(5) Pull the cable free of all sheaves and the
accessory items.
mast. Lay the cable out straight on the ground.
a. General. The truck crane may be converted to
(6) Roll the cable into a coil and secure it with
shovel operation i)y installing the shovel attachment.
wire. Label the cable for future use.
The following components are necessary for the
h. Removing the Backhoe Boom.
equipment conversion: the shovel boom, saddle block,
(1) Raise the boom and dipper off the ground.
dipper stick, dipper, boom foot roller assembly. crowd
Pull the dipper in under the boom. and lower the dipper
chain tightener and crowd chain, special shovel front and
onto wood blocks (fig. 2-19). Crib the base/ of the boom
rear drum laggings which are illustrated in figure 2-23.
as shown in figure 2-19.
(2) Remove all cables. Refer to figures 2-20,
2-17
