Cessna 150M - Step Bracket Installation; Main Wheel Speed Fairing Removal and Installation; Removal (Flat Gear); Installation (Flat Gear)

c. Position wedge and shims at outboard landing
gear fitting and tap securely in place and install
wedge attaching bolt. Avoid excessive pounding of
wedges to prevent deforming supporting structure.
d. Install seal and external fairing plate with
attaching screws.
e. Connect hydraulic brake line, and fill and bleed
brakes as outlined in paragraph 5-58.
f. Install floorboard access covers.
g. Lower aircraft.
5-7. REMOVAL. (TUBULAR.) (See sheet 2 of fig-
lure 5-1.) The following procedural steps remove the
landing gear as a complete assembly. Refer to appli-
cable paragraphs for removal of the individual com-
ponents.
a. Remove floorboard access covers over spring-
strut being removed.
b. Hoist or jack aircraft in accordance with Section
2.
c. Remove screws attaching fairing and allow fair-
ing to slide down spring-strut.
d. Drain hydraulic brake fluid from brake line on
strut being removed.
e. Disconnect hydraulic brake line at fitting where
brake line comes through fuselage skin. Cap or plug
disconnected fittings.
f. Remove nut, washer, and bolt attaching inboard
end of spring-strut to the inboard landing gear bulk-
head fitting.
g. Pull spring-strut from fitting and bushing. Use
care when removing spring-strut to prevent damage
to the hydraulic brake line. The spring-strut is a
compression fit in the bushing in the outboard landing
gear bulkhead.
5-8. INSTALLATION (TUBULAR.) (See sheet 2 of
I figure 5-1.) The following steps install the landing
gear as a complete assembly. Refer to applicable
paragraphs for installation of the individual compo-
nents.
a. Re-install all parts removed from strut.
b. Apply Dow Corning Compound DC7 to approxi-
mately 11 inches on upper end of spring-strut.
c. Slide spring-strut into place through bushing in
outboard spring-strut fitting and into spring-strut
inboard fitting.
d. Align spring-strut in inboard fitting and install
bolt through fitting and spring-strut. Install washer
and nut on bolt and tighten to torque value listed in
Section 1.
e. Connect hydrauliC brake line to fitting. Fill and
bleed brake system in accordance with paragraph
5-58.
f. Install fairing.
g. Lower aircraft and install floorboard access
covers.
5-9. STEP BRACKET INSTALLATION.
NOTE
The step bracket is secured to the landing
gear spring strut with EA9309, or a similar
epoxy base adhesive.
5-6 Change 3
a. Mark position of the bracket so that the new
step bracket will be installed in approximately the
same position on the strut.
b. Remove all traces of the original bracket and
adhesive as well as any rust, paint, or scale with a
wire brush and coarse sandpaper.
c. Leave surfaces slightly roughened or abraded,
but deep scratches or nicks should be avoided.
d. Clean surfaces to be bonded together thoroughly.
If a solvent is used, remove all traces of the solvent
with a clean, dry cloth. It is important that the
bonding
surfaces be clean and dry.
e. Check fit of the step bracket on the spring strut.
A small gap is permissible between bracket and
spring strut.
f. Mix adhesive (EA9309) in accordance with I
manufacturer's directions.
g. Spread a coat of adhesive on bonding surfaces,
and place step bracket in position on the spring strut.
On the flat spring strut, tap the bracket upward on
the strut to insure a good tight fit of the bracket on
spring strut. On the tubular strut, clamp bracket to
strut to insure a good tight fit.
h. Form a small fillet of the adhesive at all edges
of the bonded surfaces. Remove excess adhesive
with lacquer thinner.
i. Allow the adhesive to cure thoroughly according
to the manufacturer's recommendations before flex-
ing the gear spring strut or applying loads to the
step.
j. Paint gear spring strut and step bracket after
the curing is completed.
5-10. MAIN WHEEL SPEED FAIRING REMOVAL
AND INSTALLATION.
(Refer to figure 5-2.)
a. Remove screws attaching stiffener and inboard
side of wheel speed fairing to attach plate, which is
bolted to the axle.
b. Remove bolt securing outboard side of fairing to
axle nut.
c. Loosen scraper, if necessary, and work speed
fairing from the wheel.
d. Reverse preceding steps to install wheel speed
fairings.
e. After installation, check scraper-to-tire clear-
ance for a minimum of O. 25-inch to a maximum of
0.38-inch. Elongated holes are provided in the
scraper for clearance adjustments.
NOTE
Refer to Cessna Service Kit SK182-12
for repair of wheel speed fairings used
on 1969 and 1970 Model aircraft.
Always check scraper-to-tire clearance after
installing speed fairing, whenever a tire has
been changed, and whenever scraper adjust-
ment has been disturbed. If the aircraft is
flown from surfaces with mud, snow, or ice,
the speed fairing should be checked to make
sure there is no accumulation which could
prevent normal wheel rotation. Wipe fuel and
oil from the speed fairings to prevent stains
and deterioration.