TM 9-2330-271-14&P
g. Check gib and its contacting grooved surface
e. Install roller thrust bearing (20) over top upper
(lower leg assy) for burrs and wear. Remove burrs with
end of landing gear screw (22) and insert entire lower leg
fine file and finish with fine abrasive cloth.
assembly (29) into upper leg assembly (19) until roller
h. Insert lower leg assembly into upper leg
thrust bearing (20) makes contact with under side of
gear box (38).
assembly and simulate full retraction and extension
f.
Assemble machine key (21), bevel gear (40)
action as a check for ease of operation.
i.
Check wheels and axle for ease of operation
and spring clip (41) to top of landing gear screw (22) and
secure with self-locking nut (4).
and alignment. If practical, straighten and weld as
g. Rotate lower leg assembly (29) to aline gib
required.
j.
Check lubrication fittings for serviceability.
contact groove with hole in upper leg assembly (19) and
k. All parts found serviceable, after inspection
install gib (34), spring clip (33) and plug (32).
h. With movement toward nine-hole mounting
and repair, must be rust and corrosion free. Use fine file,
flange of gear box (38), install gear shaft (17), spur gear
wire brush or abrasive cloth to clean affected areas.
I.
cluster (39), woodruff key (13), bevel gear (5) and
Inspect and clean all exterior surfaces for
washer (6).
chipped paint. Scrape loose paint and prime coat.
i.
Install pin (12) securing gear cluster (39) to
(Finish coat to be applied after assembly).
gear shaft (17).
j.
Install pin (18) in gear shaft (17) to retain bevel
7-6.
gear (5).
NOTE
k. With movement through nine-hole mounting
During various steps of assembly apply
flange side of gear box (38), install crank shaft (11) and
sliding spur gear cluster (8).
parts as roller bearings, sleeve bearings,
l.
Install pin (12) securing sliding spur gear
landing gear screw, gib recess and
cluster (8) to crank shaft (11).
Make preliminary
contact groove, wheels and axle. Check
operational checks by turning crank shaft (11) to retract
for ease of operation during assembly
and extend lower leg assembly (29).
and installation of parts.
m. Install two lubrication fittings (35) in upper leg
a. If sleeve bearings (15 and 16) have been
assembly (19).
removed (step n, para 7-3), position new sleeve bearings
n. Install ball bearing (10) and spring (9).
in gear box (38). Using an arbor press or equivalent,
o. Position gasket (3) and cover (2) over gear box
press bearings in place. Match drill, from gear box,
(38) and secure with four screws with integral lock
27/64-inch diameter through top of new inner sleeve
washers (42).
bearing (15) to allow ball bearing (10) to contact crank
p. Make final operational check. Make sure crank
shaft (11). Remove burrs and loose chips.
shaft maintains its setting during low and high speed
b. Use an arbor press or equivalent and install nut
operation.
(30) in lower leg assembly (29), making sure holes for
pins (31) are in perfect alinement.
r.
Apply finish coat of paint as required.
c. Install two pins (31) securing nut (30) to lower
leg assembly (29). Make sure pins are fully seated to
7-7.
Installation
prevent bind on landing gear screw.
d. Install landing gear screw (22) in lower leg
assembly (29) and nut (30).
Engage screw
approximately half its total length.
7-2