PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE M A N U A L
the spar housing.
8. Remove the cable rub blocks located in the floor opening on the aft side of the spar housing by removing
the attaching screws.
and bolt (26). Check clevis bolt (26) for wear. Replace bolt if any wear is evident. *(See latest revision of Piper
Service Bulletin 965.)
c.
removing the bolts securing the bracket to the floor tunnel.
5-36.INSTALLATION OF FLAP CONTROLS. (Refer to Figure 5-14.)
a.
The flap torque tube assembly may be installed by the following procedure:
1. Install the chain sprocket (17) with chain (20 and 30) on the torque tube (14) and secure with bolts,
2. Slide the tube stop fittings (13) on their respective ends of the torque tube.
3. Ascertain that one bearing block fitting (7) is installed between its attachment brackets (6).
4. Slide the other bearing block over its respective end of the torque tube.
5. Position the torque tube by placing the end with the bearing block on it between the mounting bracket
and sliding the other end into the previously attached bearing block.
6. Position the remaining bearing block and secure with bolts, washers and nuts (5).
7. Push the torque tube cranks (arms) (11) on each end of the torque tube and slide the stop fitting (13) in
place. Align the bolt hole of the crank and stop fitting with the holes in the torque tube and install bolts. The holes
in the stop fitting are elongated to allow the stop fitting to be pushed against the bearing blocks (7) thus allowing no
side play of the assembly. Tighten the bolt assemblies (10) on the stop fittings.
8. Install the tube support blocks (16 and 31) on their support brackets (19) and secure with bolts (15).
9. Connect the flap return spring (32) to the return chain (30) and/or at the spar housing.
10. Connect the control cable end to the tension chain (20) and secure with bushing, clevis bolt, nut and
cotter pin.
position.
bushing that connects the control tube to the crank is installed through a hole in the side of the fuselage located
over the torque tube.
bolts.
c.
The flap control cable (23) may be installed by the following procedure:
1. Attach the cable and turnbuckle (25) to the flap handle arm and secure with clevis bolt, bushing*,
washer, nut and cotter pin (26). Ascertain that the turnbuckle end is free to rotate on the arm. *(See latest revision
of Piper Service Bulletin 965.)
2. Route the cable through the tunnel and spar housing.
3. Install the cable rub blocks on the aft side of the spar housing and secure with screws.
4. Install cotter pin cable guard over pulley (24) located just ahead of the spar housing in the floor tunnel.
5. Attach the cable end to the tension chain (20) and secure with bushings, clevis bolt, nut and cotter pin.
6. Pull the flap handle (29) full back and connect the tension spring (22) to the cable end.
e.
Install the tunnel cover and secure with screws. Also, the tunnel carpet and bracket cover.
f.
Install and secure the seats.
Interim Revision: February 28, 1995
SURFACE CONTROLS
1H3