Nose Landing Gear Cleaning, Inspection And Repair; Nose Landing Gear Installation - Piper PA-24 Comanche Service Manual

•
PIPER COMANCHE SERVICE
MA~l'AL
m. The steering bellcrank (I}) and aligner guide
(II)
may be removed by removing nuts. v.ashers.
bolts securing the steering rods
(15
and
16)
to the
bellcrank,
the nut. washer and bolt
securina
the
alizner
I!
tang to its bracket and the nut. washer. bolt and bushing securing the steering bellcrank to the la;ding ccar
mount.
6- D.
Cleaning. Inspection And Repair
Of
Nose Landing Gear.
a. Clean all parts with
a
suitable dry type cleaning
solvent.
b. Inspect the gear components for the following unfavorable conditions:
I.
Bolts. hearing and bushings for excess wear. corrosion and damage.
.., Strut housing. drag links. torque links. fork assembly and fork tube for cracks. bends
or
misalignment.
3. Downlock spring for corrosion and wear. and serviceable limits. (Refer to Table VI-I\·.)
4.
Check the general condition of limit switch and its actuator. wiring for fraying. and poor
connection or conditions that mav lead to failure.
5.
Check all polished'
surfaces
for scratches and nicks.
6. Check the drag link assembly. (refer to Figure (1.-3) through center trawl of both the right ( 11<).
(35)
and left
(:!l<l. (34)
drag links. by placing a straight edge in alignment with the center of the rear and forward
drag link attachment points. (See Sketch A of Figure 6-3). Ascertain that when the stop surfaces of the
1\\0
links touch. the center of the
pivot bolt (32) is .187
+
.062 - .00 of an inch below the straight edge. This check
may be cond
ucted
on a surface table using a surface gauge.
I
fthe drag links are not within the
giv
en tolerances.
replace on or both drag links,
c. The shimmy dampener requires no service other than routine inspection, In case of damage or
malfunction. the dampener should be replaced rather than repaired.
d. Repair to the landing gear is limited to reconditioning of parts. such as replacing bearings and
bushing.... smoothing out minor nicks and scratches. and replacement of pans.
ti~14.
Installation
Of
:\ose Landing Gear. (Refer to Figure
6-3.)
~OTE
When assembling any units of the landing gear. lubricate hearings.
bushings. and friction surfaces with the proper lubricant as des-
scribed in the Lubrication Chart. Section II.
a, Install the steering bellcrank and alianer assernblv as follows:
I.
Attach the st~eering bellcrank ( I~) and aligner assembly (II) with washer and bushings to the
engine mount using. bolt and nut .
.., Attach the tang of the aligner to the aligner support bracket and bolt. washer and nut.
l
Connect the steeri ng rods ( I 5 and 16) and rudder trim control rod to the bellcra nk wit h bolts.
washer... and nuts.
b. The landing gear oleo housing (5) may be installed as follows:
I. Position the nose gear to allow the support arm of the housing (5) to align with the support
fiuinas on the tubular mounrinu structure ( 17),
- "I
Install spacer
v.a~hers
(X and
19);
evenly and as needed to allow no side thrust (a maximum of
two washers arc allowed on each side). between the support arms and the support fittings: and attach each arm
to the fitting with bolts (9 and 10). washers and nuts. Do not safety attachment bolts until after the adjustment
of the drag links has been completed.
3. Extend and retract the gear to determine that the screw head of the aligner roller (II) clears
the inside web ot the aligner guide (61.
RE\'ISED:
~/10/8t
118
LA~DIJIllG
GEAR AJIllD BRAKE SYST.