TM 9-2330-238-14
5-12. LANDING GEAR GEARBOX REPAIR (EARLY MODEL) (Cont).
WARNING
Dry cleaning solvent, P-D-680,
is toxic and flammable.
Always wear protective goggles
and gloves, and use only in a well-ventilated
area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open frame or excessive heat.
The solvents
flash point is 100°F-138°F
(38°C-59°C).
if you become
dizzy while
using cleaning solvent, immediately
get fresh air and medical help. If solvent contacts
eyes, immediately
wash your eyes and get medical aid.
1.
Clean all parts with dry cleaning
solvent and dry thoroughly.
2.
Inspect bearing for rust, pits, or excessive
wear.
3.
Inspect lubrication
fittings (9) for cracks or bends.
4.
Inspect gear clusters for cracks, breaks, or chipped
gear teeth.
5.
Inspect access
cover and gearbox base assembly
for cracks or breaks.
6.
Inspect all mounting
hardware for cracks, bends, or stripped threads.
7.
Replace
all defective
parts as necessary.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Position
inner bearing
block (8) in place on support leg bracket
(6) and install two capscrews
(13) and new
Iockwashers
(12).
Position
outer bearing block
(10) and ratchet handcrank
holder (11) in place on support
leg bracket
(6) and
install two capscrews
(13) and new Iockwashers
(12).
Using arbor press, install bearing
(4) and new seal (5) in gearbox base assembly
(3).
Position gearbox
base assembly
(3) in place on support leg bracket
(6) and over shaft of leg assembly
(7).
Install two capscrews
(16), new Iockwashers
(15), capscrew
(18), and Iockwasher
(17).
Install gear cluster (19) on shaft of leg assembly
(7) and secure with pin (14).
Install gear cluster (20) on crankshaft (1)
and secure with pin (2). Slide round end of crankshaft
through upper
hole of gearbox access
cover (27).
Lubricate
gear clusters
(19 and 20) in accordance
with Lubrication
Instructions
(Chapter 3, Section l).
Position access cover (27) and crankshaft
(1) in place on gearbox base assembly
(3), ensuring that crankshaft
and shaft of leg assembly
(7) are alined with their respective
holes.
Install four capscrews
(26), new Iockwasher
(25), and washers
(24) and secure access
cover (27) to gearbox
base assembly
(3).
Install bearing bail (23), spring (22), and plug (21) in access
cover (27).
Install ratchet on crankshaft
(para 5-15).
Check operation
of landing
leg.
5-33