Piper COMANCHE PA-24-180 Service Manual page 200

PIPER COMANCHE SERVICE MANUAL
m.
The steering bellcrank (13) and aligner guide (I I) may be removed by removing nuts. washers ali
bolts securing the steering rods ( 15 and 16) to the bellcrank. the nut. washer and bolt securing the aligner gul
tang to its bracket and the nut, washer. bolt and bushing securing the steering bellcrank to the landing gear
mount
6-13 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. bearing and bushings for excess wear. corrosion and damage
2
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-IV )
4.
Check the general condition of limit switch and its actuator. wiring for fraying. and poor
connection or conditions that may lead to failure
5
Check all polished surfaces for scratches and nicks.
6
Check the drag link assembly. (refer to Figure 6-3) through center travel of both the right ( 18).
(35) and left (28). (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 two
links touch, the center of the pivot bolt (32) is 187 + 062 - 00 of an inch below the straight edge This check
may be conducted on a surface table using a surface gauge I fthe drag links are not within the given 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 pans. such as replacing bearings and
bushings. smoothing out minor nicks and scratches. and replacement of pans.
6-14 Installation Of Nose Landing Gear. (Refer to Figure 6-3 )
NOTE
When assembling any units of the landing gear. lubricate bearings.
bushings. and friction surfaces with the proper lubricant as des-
scribed in the Lubrication Chart. Section II.
a.
Install the steering bellcrank and aligner assembly as follows
I
Attach the steering bellcrank ( 13) and aligner assembly ( 1) with washer and bushings to the
engine mount using bolt and nut
2.
Attach the tang of the aligner to the aligner support bracket and bolt. washer and nut.
3
Connect the steering rods (15 and 16) and rudder trim control rod to the bellcrank with bolts.
I washers 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
fittings on the tubular mounting structure ( 17)
2.
Install spacer washers (8 and 19). evenly and as needed to allow no side thrust (a maximum of
two washers are allowed on each side). between the support arms and the support fittings: and attach each arm
to the fitting with bolts (9 and 20). 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 of the aligner guide (6)
REVISED: 4/10/81
118
LANDING GEAR AND BRAKE SYSTE
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