Piper Navajo PA-31 Service Manual page 350

PIPER NAVAJO SERVICE MANUAL
3.
Remove the three screws and locknuts from the left torque tube bearing assembly (9).
4.
Remove the cotter pin and washer from the right end of the torque tube and pull the tube
out of the bearing (9), from the left side of the pedestal.
5. Remove the three screws and locknuts from the right torque tube bearing (9), and remove
the bearing from the pedestal bulkhead.
6. The left bearing is part of the torque tube assembly and if found bad must be replaced with
a new torque tube assembly.
d.
Removal of Long Link Assembly:
1. Remove the cotter pin, washer and clevis pin from the long link (11) clevis and arm on the
torque tube.
2. Remove the cotter pin, washer and clevis pin from the other end of the long link clevis and
the control arm (12) on the hydraulic Power Pack (14).
3.
Compress the rubber boot (10) at the cabin side of the bulkhead 81.00 and remove the long
link assembly (11).
6-99. INSTALLATION OF GEAR SELECTOR HANDLE MECHANISM. (Refer to Figure 6-24.)
a. Installation of Long Link Assembly:
1. Install the long link assembly (11) through the hole in the bulkhead and install the rubber
boot (10) into the hole from the cabin side.
2. Align the holes in the clevis end of the long link (11) with the control arm (12) on the
Power Pack (14) and install the clevis pin, washer and cotter pin.
3. Align the holes of the clevis on the other end of the long link (11) with the arm on the right
side of the torque tube and install the clevis pin, washer and cotter pin.
b. Installation of Torque Tube Assembly:
1. Position the bearing (9) on the right side of the pedestal and secure with three screws and
locknuts.
2. Install the torque tube from the left side of the pedestal into the bearing on the right side.
3. Secure the left bearing (9) to the pedestal with three screws and locknuts.
4.
Install the washer over the right end of the torque tube and install the cotter pin.
5. Align the clevis on the end of the long link (11) with the arm on the right side of the torque
tube and install the clevis pin, washer and cotter pin.
6. Align the clevis on the end of the short link (7) with the arm on the left end of the torque
and install the clevis pin, washer, and cotter pin.
c. Installation of Selector Handle Assembly:
1. Position the selector handle assembly (5) into the instrument panel and secure with three
screws.
2.
Position the placard and secure with one screw.
3. Connect the wires to the indicator lights and solenoid.
4. Align the clevis on the end of the short link (7) with the arm (8) on the end of the torque
tube and install the clevis pin, washer, and cotter pin.
5. Install the control knob (1) and sleeve (2) onto the lever assembly and install the stop pin
(3).
d. Installation of Solenoid Assembly:
1. Position the solenoid assembly onto the rear of the selector assembly.
2. Secure it in place with the strap and two locknuts.
3. Connect the wire to the solenoid assembly.
Reissued: 10/12/79
HYDRAULIC SYSTEM
2C20