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PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Aileron and Tab (continued)
10. Installation of Aileron Control Section (Figure 401)
(a) Hold sector on end with grooved ends fore and aft, and rotate it down and between top two
supports.
(b) With sector between its supports, connect control rod to mounting flange.
(c) Ensure flange is to left side of aircraft. Position sector between its support.
(e) Ensure elevator control sector is in position. Drive AN6-60A pivot bolt down through two
sectors and their supports. Screw bolt into nut plate.
(f) Connect and tighten aileron control cables.
(g) Tighten elevator control cables.
11. Removal of Aileron Bellcrank (Figure 401)
(a) Remove access plate to bellcrank assembly.
(b) Relieve cable tension of control system by rotating one tumbuckle attached to bellcrank.
(c) Disconnect tumbuckle ends from forward and aft bellcrank ends.
(d) Disconnect aileron control rod at bellcrank.
(e) Remove pivot bolt securing bellcrank. Remove bellcrank from wing.
(f) Unbolt stop block and remove from wing.
12. Installation of Aileron Bellcrank (Figure 401)
(a) Place bellcrank in mounting bracket with adjustable stops toward outboard end of wing.
(b) Install pivot bolt and torque.
(c) Install aileron control rod; secure bolt assembly and safety.
(d) Connect tumbuckle ends to bellcrank; secure and safety.
NOTE: The bellcrank aft end and balance cable end is painted red to facilitate proper hookup.
Do not tighten turnbuckle fork ends on bellcrank so ends cannot rotate.
(e) Install stop block and torque bolts.
(f) Check aileron controls rigging and adjustment.
(g) Install access plate and secure.
13. Removal of Aileron Trim (Fuselage) (Figure 401)
(a) To gain access to trim control actuator, cables, pulleys, and control pedestal, remove right and
left pilot seats, floorboards, and access panels in and around pedestal.
NOTE: The fuselage aileron trim cables are routed down right side of fuselage from pedestal
into right wing. After entering wing, cables go through two sets of pulleys to Wing
Station 92.5 where they attach to wing aileron trim cable with tumbuckles.
(b) To release tension on the aileron cable system, loosen balance cable tumbuckle at Fuselage
Station 171.3. Access to tumbuckle is accomplished by removing necessary seats and floor
panels.
(c) Cables and pulleys in fuselage are reached by removing right hand and central floorboards in
cockpit through cabin at Fuselage Station 99.0 to 163.0. Remove seats from Station 135.0 to
163.0 as necessary.
(d) Block trim cables at screw drum assembly in wing at Wing Station 171.0 and in fuselage at
pulleys under pedestal.
(e) Under wing at Wing Station 92.5, remove access panel, mark cables to ensure proper
reinstallation; disengage fuselage trim cables from tumbuckles.
NOTE: Be sure to note specific routing and hookup of each cable to ensure trim tab operates
properly after reinstallation.
EFFECTIVITY:
040-999
Jan
10/9027-10-00
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