Control Column Assembly; Removal Of Control Column Assembly - Piper Lance II Service Manual

5-3. CONTROL COLUMN ASSEMBLY.
5-4. REMOVAL OF CONTROL COLUMN ASSEMBLY. (Refer to Figure 5-1.)
a. To remove either control wheel (5) with tube (4), the following procedure may be
used:
1. Separate the control wheel tube (4) from the flexible joint (2) that is located on
either side of the tee bar assembly (7) by removing the nut, washer and bolt (3). Pull the
tube from the flexible joint.
2. If removing the left control tube, slide the stop (12) from the tube.
3. Should wires for the various Autopilot systems be installed in the control tube,
disconnect them at the quick disconnect terminals behind the instrument panel. Draw the
wires back into the tube and back out through the forward end of the tube.
4. Remove the control wheel assembly from the instrument panel.
b. The tee bar (7) with assembled parts may be removed from the airplane by the
following procedure:
1. Remove the access panel to the aft section of the fuselage.
2. Relieve cable tension from the stabilator control cables (23) at one of the
stabilator cable turnbuckles in the aft section of the fuselage.
3. Relieve tension from the aileron control cables (22) and chains (14 and 16) at
the turnbuckle (6) that connects the chains at the top of the tee bar (7).
4. Disconnect the control chains from the control cables where the chains and
cables join by removing the cotter pins, nuts, bolts and bushings.
5. If the control wheel assemblies have not been previously disconnected from the
tee bar assembly, separate the control wheel tubes (4) at the flexible joints (2) by removing
the nuts, washers and bolts (3).
6. Remove the tunnel plate just aft of the tee bar by laying back enough tunnel
carpet to remove the plate attachment screws.
7. Remove the two aileron control cable pulleys (21) attached to the lower section
of the tee bar by removing the pulley attachment bolt (8).
8. Disconnect the stabilator control cables (23) from the lower end of the tee bar
assembly.
9. Disconnect the necessary control cables, such as the propeller pitch control,
mixture control, etc., that will allow the tee bar assembly to be removed.
10. Remove the tee bar assembly by removing the attachment bolts (3) with washers
and nuts which are through each side of the floor tunnel, and lifting it up and out through
the right side of the cabin.
5-5. INSTALLATION OF CONTROL COLUMN ASSEMBLY. (Refer to Figure 5-1.)
a. The tee bar assembly may be installed in the airplane by the following procedure:
1. Swing the tee bar assembly into place from the right side of the cabin and secure
with attachment bolts (3), washers and nuts inserted in through each side of the floor
tunnel.
2. Connect the stabilator control cables (23) to the lower end of the tee bar with
bolt (3), washer, nut and cotter pin. Allow the cable ends free to rotate.
3. Place the aileron control cables (22) around the pulleys (21) that attach to the
lower section of the tee bar (7); position pulleys and secure with bolt, washers and nut.
4. Install the control wheel per Step b.
5. Place the control wheels in neutral (centered) position and install the aileron
control chains (14 and 16) on the control wheel sprockets (1 and 13) and idler cross-over
sprockets (15 and 18). The turnbuckle (6) must be centered between the two control wheel
sprockets.
Isued: 1/3/78
SURFACE CONTROLS
1F18
LANCE II SERVICE MANUAL