Installation Of Control Column - Piper Navajo PA-31 Service Manual

PIPER NAVAJO SERVICE MANUAL
(d) Slide the tube (14) to the right and remove the control sector (8) from the tube. If desired
the cables may be removed from the sector.
(e) Slide the tube from the left bearing ( 15); lower the left end of the tube and slide the tube
down and left from the right mounting hole.
(f)
The control arms and bearings may be removed if desired.
2. Removal procedure for airplanes with tube extensions:
(a) See Step (a) in procedure 1 above.
(b) For the PA-31-325 only, remove the connecting link to release the chain (82) tension of
the bobweight assembly.
(c) Remove the bolt and roll pins (12 and 17) and bolt and roll pins (83).
(d) For the PA-31-325 only, withdraw the sprocket assembly (81) from the torque tube (14).
(e) Disconnect bolt and roll pins (10) and remove elevator control sector (8) by pushing
extension assembly in torque tube (14).
(f) Push the right extension tube inside torque tube (14) and remove the torque tube.
(g) The bearings may be removed if desired.
e.
The control tube guide located on the instrument panel may be removed by removing the assembly
cover (49) and the screws that secure the housing (47).
5-6. INSTALLATION
OF CONTROL COLUMN. (Refer to Figure 5-1.)
a. Installation of the control column torque assembly may be accomplished by the following
procedure:
d sasseml
1.
Use Steps (a) to (f) for early 31-300 and 31-310 airplanes without tube extensions that aid in
bly. See item 2 below if tube extensions are installed.
(a) Position but do not attach control arms (11, 13, 16 and 18) on uninstalled torque tube
assembly (14).
(b) Lubricate bearings (15 and 19) and position on torque tube (14).
(c)
Install the torque tube (14) by sliding right end of tube through the mounting hole.
(d) Position the left end of the torque tube and attach the bearings (15 and 19) to their
mounting positions.
(e) Install the control sector (8). with cables attached, on end of the tube. With the sector
and arms in position, install roll pins and bolts (10. 12 and 17). Tighten sector, control
arm and bearing bolts to standard torque.
(f) Reconnect elevator cable turnbuckle at station 110.5 and set cable tension.
2. Installation procedure for airplanes with torque tube extensions:
(a) Position but do not attach control arms (11. 13. 16 and 18) on uninstalled torque tube
assembly (14).
(b) Lubricate bearings (15 and 19) and attach bearings to their mounting locations.
(c) Slide the tube extensions inside the torque tube and install the torque tube. Pull the tube
extensions through the bearings.
(d) Install the control sector (8). with cables attached. on the end of the extension tube. With
sector, tube extensions and arms in position. install roll pins and bolts ( 10. 12. 17 and 83).
Tighten bolts to a standard torque.
(e) For the PA-31-325 only. insert the bobweight sprocket (81) in the torque tube (14) and
secure with the bolt assembly (83).
(f) Reconnect elevator cable turnbuckle at station 110.5 and set cable tension.
10/12/79
SURFACE CONTROLS
116
Reissued: