Cargo Door Latch Assembly; Removal Of Cargo Door Latch Assembly; Installation And Adjustment Of Cargo Door Latch Assembly; Pilot Door - Piper Navajo PA-31 Service Manual

c. Operate the door latch to determine the latch pins engage properly.
d. Remove the clevis securing the lower cable to the eye bolt. Connect the upper and lower cable
assemblies together by means of the lock pin attached to the lower cable assembly.
4-76. CARGO DOOR LATCH ASSEMBLY.
4-77. REMOVAL OF CARGO DOOR LATCH ASSEMBLY. (Refer to Figure 4-13.)
a. Remove bottom trim panel of cargo door.
b. Using access holes in cargo door, locate and remove spring retainer plate (10) and spring (11).
c. Remove cotter pin and clevis pin securing rod assembly (8) and link (5) to the door latch (4).
d. Remove bolt, bushing and washer securing the door latch and remove it from its recess.
e. The rod assembly and link with latch pins attached may now be removed from the door.
4-78. INSTALLATION
AND ADJUSTMENT
OF CARGO DOOR LATCH ASSEMBLY. (Refer to:
Figure 4-13.)
a. Adjustment of the latch assembly is limited to determining that the distance between the center
line of the hole in the clevis at end of the rod assembly (8) is 13.88 inches. Securely tighten the locknuts to
maintain this dimension.
b. Position the door latch (4) in its recess in the door frame and secure with bolt, bushing and
washer.
c. Insert the latch pins on rod assembly (8) and link (5) through their respective guides in the side
and bottom door frame.
d. Place the free end of the rod assembly over the end of the handle. Place the free end of the link
adjacent to the clevis on the side toward the outer skin. Align the holes and insert the clevis pin, washer and
cotter pin.
e. Place the hook end of spring ( 1) between the clevis and the washer. Secure the other end of the
spring in position with retainer plate (10).
f. With installation complete, operate the door latch to determine that the latch pins move in and
out of the pin guides smoothly.
g.
Refer to Section XI for adjustment instructions for the optional door ajar switch.
4-79. PILOT DOOR.
4-80. REMOVAL OF PILOT DOOR. (Refer to Figure 4-14.)
a. Remove the bolt securing the support assembly to the bottom of the door.
b. Remove hinge pins from upper and lower hinges and carefully pull door away from the fuselage.
NOTE
Do not remove the serrated bushings from the door hinge brackets
unless in need of replacement. These bushings are either
concentric or eccentric in construction and must be replaced with
the same type. (Refer to Parts Catalog for appropriate part
numbers.)
Revised: 9/23/80
STRUCTURES
PIPER NAVAJO SERVICE MANUAL
1F24