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PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Aileron and Tab (continued)
5. Removal of Aileron Control Cables (continued)
(h) To remove right aileron cable, use basically the same procedure as the left. The only
difference for the right cable system is that pulley locations aft of sector are different. The right
system's first pulley from sector is at Station 101.07. One is at Station 164.51 where cable
turns toward wing and goes under another pulley at Station 168.0. The inboard and outboard
sections are still divided by a tumbuckle at Station 142.0.
6. Installation of Aileron Control Cables (Figure 401)
NOTE: When all fairleads and cable guard pins are removed, and only the inboard or outboard
section of cable is to be installed, follow instructions for the specific section from either
side of turnbuckles at Station 142.0 and on.
(a) Install left primary cable as follows:
(1.) At bellcrank in left wing, fasten tumbuckle fork to forward arm of bellcrank.
(2.) Carefully feed cable through pulleys in wiring at Stations 147.5, 30.0, and 0.5 and around
pulley at wing root (Fuselage Station 170.03, Buttock Line 28.58). Angle slightly forward
through forward hole in fairlead pan assembly and around port pulley at Fuselage Station
164.51.
(3.) If full cable is being rigged, feed cable forward around pulley at Fuselage Station 112.48
and to left side of upper control sector.
(4.) Fasten cable end to aileron control sector by screwing on retainer and safety wiring.
(b) Install right primary cable as follows:
(1.) Connect tumbuckle fork to forward arm of bellcrank in right wing.
(2.) Route cable through pulleys in right wing as previously described for left wing.
(3.) Again feed cable through forward hole in fairlead pan assembly, Waterline 16.81.
(4.) At a slight angle forward, route cable from pan inboard to a pulley at Fuselage Station
168.0. Feed cable under and around pulley to rear pulley at Station 164.51 and around it.
(5.) If both sections are being installed, route cable forward to pulley at Station 101.07, around
its left side, through bulkhead at Station 100 and onto right side of aileron control sector.
(6.) Fasten cable end to control sector by screwing on cable retainer plate and safety wiring
them to sector.
(c) Install left and right balance cables as follows:
(1.) Connect cables to aft arm of individual bellcranks. Verify, if applicable, that red painted
cable terminals on aileron balance cables are installed to red painted lugs on aileron
bellcranks in wings.
(2.) Route cables through pulleys installing cable guard pins at Wing Stations 147.5, 30.0, and
0.5 and fairleads at Stations 121.5 and 58.5.
(3.) Check proper angle of ailerons; connect and tighten cables at turnbuckle accordingly.
Verify trailing edge of left aileron moves up and trailing edge of right aileron moves down
when control wheel is turned counterclockwise and vice-versa when control wheel is
turned clockwise.
EFFECTIVITY:
040-999
PAGE 5
27-10-00
Jan
10/90
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