Removal Of Nose Landing Gear - Piper Navajo PA-31 Service Manual

PIPER NAVAJO SERVICE MANUAL
d. Insert the tube up through the bottom of the cylinder ( 12). With the tube exposed through the top of
the cylinder, install the lock plate (45) and secure with flush head screws (49). Install orifice tube washer and
locknut (38), tighten nut finger tight at this time.
e. The fork tube assembly may be assembled by installing the tube components on the tube (26). In order,
slide onto tube; retainer ring (9), washer (8), lower bearing (5) with outer and inner O-rings (4 and 6), spacer
(3) and upper bearing (2). Align reference marks on upper bearing and piston tube to insure proper indexing of
lock pin holes of the upper bearing and piston tube and install pins (1).
NOTE
Refer to Parts Catalog for correct replacement part number for
retaining pins (1).
f. Lubricate the inner wall of the cylinder. Carefully insert the piston tube assembly into the bottom of the
cylinder ( 12), allowing the orifice tube to guide itself into the piston tube, until the retainer ring (9) can be
installed in the annular slot at the end of the cylinder. Install wiper strip (7), slide washer (8) into position and
secure assembly with retainer ring.
g. At the top of the cylinder (12), tighten the orifice tube locknut (38).
h. Install the upper and lower torque links (22 and 25).
i. Ascertain that the upper and lower oleo housing bushings (11 and 13) are installed. Install the cylinder
into the oleo housing and secure with retainer ring (10).
j. At the top of the oleo housing, install on the cylinder, the aligner guide bracket (40) and steering arm
(42). Torque cap bolts (37), 30-35 in-lbs. and safety with MS2()995C40 wire (44).
k. At the top of the oleo housing on (LATER MODELS) install on the cylinder, the aligner guide bracket
(13) and the plate assembly (12). Torque cap bolts (II), 30-33 in.-lbs. and safety with MS20995C32 wire.
Install steering arm (8), special washers (7), sleeve ( 18), spring (6), washer (5), nut (4), with torque of 550560
in.-lbs., washer (3), bolt (2) with torque of 45-70 in.-lbs. and safety .with MS20995C32 wire. (Refer to Figure
7-1a.)
1. Install the shimmy dampener (27).
m. Lubricate the gear assembly. (Refer to Lubrication Chart, Section 11.)
n. Service oleo strut with fluid and air. (Refer to Oleo Struts, Section 11.) o. Check the nose gear for
alignment (refer to Paragraph 7-12) for operation.
7-8. REMOVAL OF NOSE LANDING GEAR. (Refer to Figure 7-2.)
a. Remove the right and left access panels (Sta. 7(.0) to the aft interior portion of the nose section.
Remove the access plates located on the nose baggage compartment floor panel to gain access to the landing
gear attachment bolts. (Refer to Access Plates and Panels, Section 11.)
b. Place the airplane on jacks. (Refer to Jacking, Section 11.)
c. With the hand pump, retract the nose gear slightly to relieve the gear from its down locked position.
d. To remove the drag link assembly, the following procedure may be used:
1. Disconnect gear retraction rod (36) from the upper right drag link (39).
2. Disconnect the lower drag link (41) from the gear oleo housing (44).
Revised: 2/18/94
LANDING GEAR AND BRAKE SYSTEM
2E12