TM 5-3810-306-34
HOOK BLOCK ASSEMBLY
TOOLS:
General mechanic's tool kit: automotive (5180-00-177-7033)
SUPPLIES:
None
EQUIPMENT CONDITION:
Hook block removed. (Refer to TM 5-3810-306-20.)
b. Remove retaining rings (26), grooved pin
DISASSEMBLY:
(27), latch (23) and spring (24). Remove
quick release pin (25).
1. DISASSEMBLE HOOK BLOCK.
c. If necessary remove grease fitting from
a. Lay hook block on its side and remove
nut (19).
nuts (7).
b. If necessary remove three grease fittings
CLEANING:
from center pin (6).
WARNING
c. Remove spirol (-0), setscrew (5) and nut
(4).
Dry cleaning solvent P-D680 is toxic
and flammable.
Wear protective
d. Remove side plate (9) and spacers (16).
goggles and gloves and use only in a
well ventilated area. Avoid contact
e. Remove first sheave assembly (11), thrust
with skin, eyes, and clothes and do
washers (12), and plate (15). Remove
not breathe vapors. Do not use near
remaining sheaves (11), spacers (16), and
open flame or excessive heat. The
plates (15) in same manner.
flash point is 100F138F (38-59C).
If you become dizzy while using
f. Remove hook (19) and spacers (28).
cleaning solvent, get fresh air
immediately and get medical aid. If
g. Remove tie bolts (8) and center pin (6).
contact with eyes is made, wash your
eyes with water and get medical aid
2. REMOVE ROLLER BEARINGS (13) FROM
immediately.
SHEAVE ASSEMBLIES (14).
Compressed air used for cleaning
purposes will not exceed 30 psi. Use
CAUTION
only with effective chip guarding and
personal
protective
equipment
Use care when driving out roller
(goggles/shield, gloves, etc.).
bearings (13) to avoid damage to
sheaves.
3. DISASSEMBLE HOOK.
a. Remove setscrew (18), nut (19), thrust
bearing (20) and housing (21).
15-22
