TM 5-3810-306-34
1. CLEAN ALL PARTS WITH SOLVENT AND
c. If removed, install grease fitting in nut (19).
CLEAN LINT-FREE CLOTH.
d. Install housing (21) on hook and secure
with thrust bearing (20), nut (19) and
setscrew (18).
INSPECTION:
2. ASSEMBLE HOOK BLOCK.
1. INSPECT HOOK BLOCK COMPONENTS.
a. Assemble sheaves (14), roller bearings
a. Inspect all sheaves for wear and damaged
(13) and thrust washers (12) - 3 places.
grooves.
b. Install sheave assemblies (11), thrust
b. Inspect internal
bearing
surfaces
for
washers and plates on center pin (6).
scoring.
c. Install hook (19) and spacers (28).
c. Inspect roller bearings for wear. Repack
each bearing with grease MIL-G-10924.
d. Install side plate (9) over center pin.
Install tie bolts (8) ensuring spacers (16)
d. Inspect hook for distortion and cracks.
are installed between plates.
Perform magnetic-particle inspection to
uncover possible fatigue damage. Latch
e. Secure center pin with nut (4) and
opening must measure 3.43 inches. Any
setscrew (5). Install spirol (10). Secure tie
distortion or fatigue is cause for
bolts (8) with nuts (7).
replacement.
f. If removed, install three grease fittings in
center pin (6).
REASSEMBLY:
g. Grease lubrication fittings. (Refer to LO 5-
1. ASSEMBLE HOOK.
3810-306-12.)
a. Install spring (24), latch (23), and grooved
3. INSTALL HOOK BLOCK.
(REFER TO TM 5-
pin (27). Secure with retaining rings (26).
3810-306-20.)
b. Install quick release pin (25).
END OF TASK
15-24
