TM 5-3895-342-34
CHAPTER 7
REPAIR OF DRIVE AND HOIST ASSEMBLY
clutch band is loose on drum.
7-1. General
(2) Remove cotter pin holding tension screw
The drive and hoist assembly consists of the drive
to clutch band, remove screw and remove clutch band.
sheave, gear reduction case assembly, clutch band,
b. Cleaning, Inspection and Repair.
brake band, and hoisting drum.
(1) Clean clutch band.
(2) Inspect clutch band for wear and damage.
7-2. Drive Sheave
Replace worn or damaged clutch band.
a. Removal.
c. Install clutch band in reverse of instructions in
(1) Remove pump belt (1) and hoist drive
subparagraph a above.
belts (4) (TM 5-3895-342-12).
(2) Remove the three capscrews securing the
7-5. Hoisting Drum
drive sheave to the gear reduction case, and slide the
a. Removal.
drive sheave off of the shaft.
b. Cleaning, Inspection and Repair.
(1) Remove drive and hoist assembly (para 2-
14).
(1) Clean drive sheave with cleaning solvent.
(2) Remove setscrew securing hoisting drum
(2) Inspect sheave for wear and damage.
to shaft and remove hoisting drum.
Repair or replace worn or damaged sheave.
b. Cleaning, Inspection and Repair.
c. Installation. Install drive sheave in reverse of
(1) Clean hoisting drum with cleaning solvent.
instructions in subparagraph a above.
(2) Inspect hoisting drum for wear and
damage. Replace worn or damaged hoisting drum.
7-3. Brake Band
c. Installation. Install hoisting drum in reverse of
a. Removal.
instructions in subparagraph a above.
(1) Disconnect brake linkage from brake band
by removing cotter pin from brake rod and disengaging
7-6. Gear Reduction Case Assembly
rod from linkage.
a. Removal.
(2) Remove nut from brake rod holding brake
(1) Remove drive and hoist assembly (para 2-14).
band to lower frame and remove brake band.
14).
b. Cleaning, Inspection and Repair.
(2) Remove drive sheave (para 7-2).
(1) Clean brake band.
(3) Remove cotter pin securing tension rod to
(2) Inspect brake band for wear and damage.
gear case and remove tension rod.
Replace worn or damaged brake band.
(4) Remove plug on side of gear caw and
c. Installation. Install brake band in reverse of
drain lubricant from gear case assembly.
instructions in subparagraph a above.
b. Disassembly.
Disassemble gear reduction
case assembly in numerical sequence as illustrated in
7-4. Clutch Band
a. Removal.
(1) Loosen tension screw on clutch band until
KEY to fig. 7-1.
12.
Screw, cap hex hd
25. Lockwasher
13.
Bearing
26. Case, reduction
1. Sheave
14.
Pin, cotter
27. Plug, vent
2. Spacer
15.
Rod, hold down
28 Bearing, ball
3. Screw, cap hex hd
16.
Nut, hex
29. Spacer
4. Lockwasher
17.
Washer, cut
30. Ell, street 90
5. Cover
18.
Lockwasher
31. Spacer
6. Gasket
19.
Case, gear reduction with pinion
32. Plug, pipe sq hd
7. Ring, retaining
20.
Oil
33. Key
8. Ring, retaining int
21.
Plug, pipe sq hd
34. Pinion & shaft, reduction
9. Nut, hex
22.
Bearing, ball
35. Gear
10. Lockwasher
23.
Screw, cap hex hd
36. Gasket
11. Washer, flat
24.
Nut, hex
37. Cover
7-1
