Figure 2-28. Crowd and retract cable reeving.
d. Retract Cable Reeving.
(1) Unroll and stretch the retract cable out on
the ground on the right side of the boom.
(2) Secure one end of the cable to the dipper
stick (fig. 2-28). Reeve the other end of the cable over
the top of the center groove in the shipper shaft roller,
and over and around the boom foot drum. Wrap the
excess length around the drum, and secure the end to
Figure 2-27. Shovel boom installation.
the drum.
e. Reeving Shovel Dipper Hoist Cable.
(6) Install the crowd chain around the front
(1) Unroll and stretch the dipper hoist cable
drum sprocket, boom foot drum sprocket, and over the
out on the right side of the boom.
chain tightener. Adjust the chain as described in
(2) Reeve one end of the cable up and over
the left boom point sheave, down the top side of the
c. Reeving Crowd Cable.
boom, and over the left cable drum.
(1) Unroll and stretch the crowd cable out on
(3) Insert the end of the cable through the
the ground on the right side of the boom.
cable dead-end socket, loop it and insert the end of the
(2) Reeve one end of the crowd cable under
cable back into the socket, taking care that the end does
and around the boom foot drum, to the right cable locket
not protrude all the way through. Insert the cable wedge
on the drum, and secure the cable to the drum as shown
into the socket and pull the cable tight around it.
in figure 2-11.
(4) Reeve the remaining free end of the cable
(3) Reeve the other end of the crowd cable
around the padlock sheave on the shovel, dipper, up and
around the front of the right groove in the shipper shaft
over the right boom point sheave, and to the cable
roller, around the dipper stick rope thimble, around the
socket on the boom (fig. 2-29).
front of the left groove in the shipper shaft roller, under
and around the boom foot drum, to the left cable socket
on the drum, and secure the cable to the drum (fig. 2-
2-22
