TM 5-3810-206-35
c. Cleaning, Inspection and Repair.
b. Disassembly or Reassembly.
(1) Clean all parts and dry thoroughly.
(1) Remove engine (para 2-9).
(2) Inspect bearings and thrust washers for
(2) Remove jackshaft (para 4-11).
worn or corroded condition. Inspect roller, and eccentric
(3) Remove intermediate hoist shaft (para 4-
shafts for out of round or excessive wear. Inspect
bracket for cracks or breaks.
Inspect mounting
(4) Remove main hoist shaft (para 4-15).
hardware for damage or defect.
(5) Remove vertical intermediate swing shaft
(3) Repair rollers by building up with weld and
grinding tree. Replace defective rollers beyond repair.
(6) Remove vertical intermediate idler shaft
Replace defective bearings, thrust washers, shafts, or
mounting hardware.
(7) Remove vertical swing shaft (para 4-26).
d. Adjustment . Refer to TM 5-3810-201-12 for
(8) Remove steering shaft mechanism (para 4-
adjustment.
(9) Remove four bolts (19, fig. 4-20),
lockwashers (22), and nuts (28), then remove cover (16)
4-33. Rear Hook Rollers
and gaskets (15 and 23).
a. Removal and Installation of Rear Hook Rollers.
(10) Remove six screws (18), cover (20), and
Remove or install rear hook rollers (TM 5-3810-206-12).
gasket (17) from bearing cover (16).
b. Removal and Installation of Rear Hook Roller
(11) Remove oil seals (11 and 12) from bearing
Bracket.
housing.
(1) Remove two nuts (3, view B of fig. 4-19)
(12) Remove bearings (25, 30, 31, 33, 34, 35,
lockwashers (4), and bolt (10) from bracket (5).
36, 37, 39 and 45) from revolving frame when
(2) Support weight of bracket (5) and remove
necessary.
cotterpins (21), nuts (22), and bolts (2) from bracket (5).
(13) Remove dowels (26) from bearings (25 and
(3) Remove two nuts (22), lockwashers (21),
37).
bolts (1) and bracket (5) from revolving frame.
(14) Remove fittings (46) from bushings (47),
(4) Press or drive bearings (8) out of rollers (6).
then remove bushings (47) when necessary.
(5) Install rear book rollers by reversing
(15) Reassemble revolving frame by reversing
procedure in steps (4) through (1) and a above.
procedure in steps (14) through (1) above.
c. Cleaning, Inspection and Repair.
Refer to
c. Cleaning, Inspection, and Repair.
(1) Clean all parts and dry thoroughly.
rear hook rollers in a similar manner.
(2) Inspect all bearings, bushings, mounting
d. Adjustment . Refer to TM 5-3810-206-12 for
hardware, and seals for wear, damage or other defect.
adjustment.
Inspect revolving frame box section for dents. Inspect
sidestand for bends or dents.
(3) Repair by welding cracks, straightening
4-34. Revolving Frame
dents or bends, and replacing damaged or defective
a. Removal or Installation.
Remove or install the
components or mounting hardware.
revolving frame (para 2-10).
Section XVI. HYDRAULIC BRAKE AND CLUTCH CYLINDERS
compensator; jackshaft clutch and brakedrum cylinder;
4-35. General
propel brake and planetary boom compensators, and the
The operating controls receive hydraulic boost from
hydraulic pressure control valve.
cylinders at each brake or clutch, and are equalized by
compensators at the lever stand.
Springs in the
4-36. Hydraulic Brake Cylinder
cylinders or compensators return piston of cylinder to
neutral position when force applied to lever or pedal has
a. Removal and Installation. Remove or install the
been removed. This section will cover the hydraulic
hydraulic brake cylinder (TM 5-3810-206-12).
brake cylinder; planetary hoist, digging, and boom brake
b. Disassembly and Reassembly.
wheel cylinder; clutch and boom hoist and digging brake
(1) Remove the two boots (1, fig. 4-21).
4-30
