TM 5-3810-206-35
(3) Remove two bearings (45) from link (43),
and two sleeve bearings (49) in lever (12).
then remove two bearings (49) from lever (12).
(3) Position link (43) on auxiliary clutch drum
(4) When clutch shoe lining segments are worn
(62) and secure with pin (46) and cotterpin (47).
to within 1,16 inch of rivet head, remove rivets and lining
(4) Position lever (12) then install pin (50) and
segments from clutch shoes (19).
secure with cotterpin (8).
c. Cleaning, Inspection, and Repair.
e. Installation. Install remainder of hoisting and/or
(1) Clean all metal parts and dry thoroughly.
digging clutch on main drum (hoist) shaft (TM 5-3810-
Clean glaze or discoloration from brake lining with a wire
206-12).
brush, then wipe with clean cloth or blow off dirt with low
pressure compressed air.
4-18. Auxiliary (or Booster) Clutches
(2) Inspect all parts for damage, defect, or signs
of wear. Check spring tension.
(3) Repair by replacing defective parts, or worn
hoist shaft (TM 5-3810-206-12).
lining segments.
b. Disassembly or Reassembly. Remove rivets (5,
d. Reassembly.
(1) Install new lining segments (38, fig. 4-10) on
segment (7), when worn to within 1/16 inch of rivet head.
clutch shoes (19).
Reassemble in reverse order.
(2) Install two sleeve bearings (45) in link(43)
hoist shaft (TM 5-3810-206-12).
Section IX. VERTICAL INTERMEDIATE IDLER SHAFT
4-19. General
Note. Because of close tolerances, it
may be necessary to use a drift
The vertical intermediate idler shaft spur gear meshes
punch and drive shaft through the
with spur gear on top of intermediate swing shaft and
frame.
swing gear on vertical swing shaft.
(7) Remove spur gear (5) from revolving frame.
(8) Use puller to remove one bearing (6) from
4-20. Vertical Intermediate Idler Shaft
spur gear (5). Then press remaining bearing (6) from
a. Removal and Disassembly.
opposite side of gear (5).
(1) Rotate revolving frame to a position where
(9) Remove fitting (11) from pipe bushing (12)
idler shaft will pass through the cross-member of crawler
then remove bushing from shaft (7).
carbody, then stop engine.
b. Cleaning, Inspection and Repair.
(2) Working from rear of revolving frame and
(1) Clean all parts and dry thoroughly.
over jackshaft, remove the two rear sections of
(2) Inspect shaft for straig htness, and signs of
horizontal gear train cover (TM 5-3410-206-12).
excessive wear on bearing surfaces. Inspect gear for
(3) From top, remove lockwire (12, fig. 4-11),
chipped or broken teeth or signs of uneven wear.
two capscrews (11), and dirt guard (10).
(3) Repair or replace damaged components or
(4) Lift washer (4, fig. 4-12) from top of shaft (7).
mounting hardware that is defective.
(5) Support weight of shaft (7, fig. 4-12) from
c. Reassembly and Installation.
beneath revolving frame, by using wood blocks, or jack,
(1) Press two be arings (6) in spur gear (5), then
then remove two capscrews (10), lockwashers (9) and
position gear in place on revolving frame.
keeper plate (8) from shaft (7).
(2) Work shaft (7) up through the carbody and
(6) Lower shaft slowly to the ground.
cross-member of revolving frame, and drive
4-17
