Piper Arrow IV, Maintenance Manual

Page: 260 / 752

2. The aft rudder control cables may be installed by the following procedure:
A. Position the control cable in the fuselage.
B. Connect the end of the cable to the rudder sector at the turnbuckles.
C. Connect the other cable end to forward control cable at the turnbuckle in the aft section of the
fuselage.
D. Set cable tension and check rigging and adjustment per Rigging and Adjustment of Rudder
Controls.
E. Install rudder fairing and secure with screws.
3. Install the access panel to the aft section of the fuselage.
RIGGING AND ADJUSTMENT OF RUDDER CONTROLS.
1. To check and set the correct degree of rudder travel, the following procedure may be used:
A. Check the rudder travel by swinging the rudder until it contacts its stop. If the control cables are
connected, use the rudder pedals to swing the rudder making sure the nose gear is disconnected or
off the ground.
B. With the rudder against its stop, place a rigging tool against the side of the rudder and vertical
stabilizer as shown in Figure 27-9. (Ascertain that the tool is not contacting any rivets.) If no gap
exists between the rigging tool and the surface of the rudder and vertical stabilizer, the rudder stop
for one direction of travel is correct as required in Figure 27-11. (This tool may be fabricated from
dimensions given in Chapter 95.)
C. Swing the rudder in the other direction and check travel as directed in Step B.
D. Should the rudder travel be incorrect showing a gap between the tool and any part of the control
surfaces, the rudder fairing should be removed and the stops reset to obtain correct rudder travel.
(Refer to Figure 27-12.)
2. To set cable tension and alignment of the rudder, the following procedure may be used:
A. Remove the access panel to the aft section of the fuselage.
B. Ascertain that the nose gear steering has been aligned and rudder pedals set fore and aft according
to Alignment of Nose Landing Gear, Chapter 32.
C. Clamp the rudder pedals to align in a lateral position as shown in Figure 27-10.
D. Adjust the turnbuckles in the aft section of the fuselage to obtain proper cable tension as given in
Figure 27-11 and to allow the rudder to align at neutral position. Neutral position can be
determined by standing behind the airplane and sighting the rudder with the vertical stabilizer or
the center of the trim screw.
E. Check safety of turnbuckles.
3. The correct rudder primary stops, cable tension and rudder pedal neutral position will take care of
rudder pedal secondary stops.
4. Install the rudder fairing and the access panel to the aft section of the fuselage.
RUDDER TRIM CONTROLS.
REMOVAL OF RUDDER TRIM CONTROLS. (Refer to Figure 27-13.)
1. Remove the cover from over the trim control assembly by removing attaching screws.
2. Remove the rudder trim knob and the cover attaching screws.
3. Rotate the trim knob to the extreme left (counterclockwise) trim position.
27-25-01
Page 27-25
Revised: August 8, 1984
1K20
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL