Figure 4-2. Revolving frame component relationship.
attachment will require the assistance of another crane,
(3) Position crane-shovel basic unit at end of
or suitable lifting device, and components should be
shovel boom as illustrated in figure 4-1; position
assembled in the reverse order of removal from shovel
antisway spring eye bolt at lug on revolving frame, then
boom (para 4-10).
install boom foot pins through eye bolt; lugs on revolving
b. Installation.
frame; lugs on boom foot, then secure with cotterpins.
(1) Assure that crane-shovel basic unit has
Note. Be sure boom foot pins are installed
been prepared for shovel front end attachment
from outside to inside.
installation as outlined in paragraph 4-1b above.
(4) Install trip cable (from
equalizer
(2) Install shovel hoist cable (table 1-2) on
bracket) through guide sheave on boom foot, then
hoist drum (fig. 4-2) (para 3-43) and shovel boom hoist
connect to lever underneath revolving frame.
cable on boom hoist drum. Wind cables on drums.
4-2
