TM 5-3810-289-12
(b ) Crowd (fig. 2-23).
1. Refer to table 4-3 for correct cable
length.
2. Remove cable guard on end of dipper
handle.
3.
Loop middle of cable over anchor
casting.
4. Lead right end of cable down and around
shipper shaft drum, through lower section of boom to the
right groove, and anchor in socket at right side of crowd
drum.
5. Lead left end of cable down and around
shipper shaft drum, through lower section of boom to the
left groove, and anchor in socket at left side of crowd
drum.
6. Install cable guard and run handle all the
way out until stops rest against saddle block.
(c) Backhaul (fig. 2-23)
1. Refer to table 4-3 for correct cable
length.
2. Insert cable in drum socket.
3. Wind one wrap on center section of
Figure 2-19. Crowd chain sprocket, removal and
drum and attach.
installation
4. Lead other end over top of center groove
on shipper shaft drum and attach to adjusting bolt on
(a) Refer to table 4-43 for correct cable
dipper handle.
length.
5. Turn nuts on adjustment bolt as far down
(b) Lead cable (1) over left A-frame
as possible.
sheave and attach to boom hoist drum.
(d) Dipper trip (fig. 2-24).
(c) Lead cable under left boom point
1. Lead end over sheave on right side of
sheave.
boom and through guide sheave located at boom foot on
(d) Lead cable (2) around upper A-
right side.
frame yoke sheave and over right boom point sheave
2. Lead cable under deck, around guide
(e) Lead cable (4) over right A-frame
sheave, and attach to dipper trip drum.
sheave and under right boom point sheave.
3. Attach other end to drum lever on top of
(f) Lead cable (6) around lower A-
dipper.
frame yoke sheave and over left boom point sheave.
(13) Adjustments.
(g) Attach cable (8) to anchor on A-
(a) Dipper trip clutch (fig. 2-25).
frame.
1. Dipper trip cable should follow
(11) Boom raised to 45 angle. Refer to
dipper in all movements.
figure 2-23.
2. Clutch wear is compensated for by
(12) Shovel cable reeving.
loosening locknut (1) and adjusting screw (2)
(a) Hoist (fig. 2-23).
3. When full thread travel has been
1. Refer to table 4-3 for correct cab length.
used on adjusting screw (2), it is necessary to increase
2. Lead cable over right boom point sheave
tension on spring (3).
through padlock sheave and over left boom point sheave.
3. Attach end to hoist drum end.
4. Attach end to anchor on boom.
2-18
