040-999
PAGE5
27-10-00Jan10/90
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. Aileronand Tab (continued)
F.S. F.S.
112.49 170.03
Aileronand Aileron TrimControls
Figure401 (Sheet 1 of 3)
EFFECTIVITY:
Jan 10/90Jan 10/90 7-1 0-00 040-999
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Aileron and Tab (continued)
Fuslage Station 93.30
AileronTrimPulley
FuselageStation101.23
FuselageStation101.10 FuselageStation 142.0
FuselageStation164.51 FuselageStation 170.03
Aileronand Aileron TrimControls Figure 401 (Sheet2 of 3)
EFFECTIVITY: 040-999 27-10-00 PAGE7Jan10/90
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Aileron and Tab (continued)
AileronBalanceCable
FuselageStation 171.00
Aileron Trim Tab Cable
WingStation 0.50
Aileron Trim Tab Cable Wing Station 30.00
WingStation 174.50
Aileron Trim Tab
Cable
Wing Station 147.50 WingStation 174.50 (right wing only)
Aileronand Aileron Trim Controls
Figure 401 (Sheet 3 of 3)
EFFECTIVITY:
040-999
Jan 109027-10-00Jan 10/90
PIPERAIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCEMANUAL
A. Aileron and Tab (continued)
7. Removalof Control Column Sprockets
(a)
Remove access panels located on forward side of control column approximately 6.00 inches below control wheels on pilot and copilot control columns.
(b)
Remove cover assembly from top of both control columns.
(c)
Install rigging pins in lower portion of pilot control column ensuring bellcrank is captured between two pins.
(d)
Insert two pieces of 0.032 inch safety wire down copilot control column and one piece down pilot control column. Wrap one end of each wire to a link in chain below turnbuckles. Tie opposite ends of wires to holes which forward access panels are mounted to columns.
NOTE: Keep the wires tight so chain does not fall off sprockets under floorboards.
8. Installation of Control Column Sprockets
(a)
Placealignment mark on new sprocket in same place as old sprocket.
(b)
Mount new sprocket on shaft with sprocket hub facing away from control wheel. Line ream hole in sprocket and shaft assembly to 0.1635 -0.1640 inch diameter. Install Hy-Lok HL 18-5-16 pin in hole for drive fit. Install Hy-Lok HL-70-5 collar on pin and tighten it until hex position shears off. Hold pin head with an Allen wrench if necessary.
(c)
Reassemblycontrol wheel assemblies into control columns by securing bearing blocks to each column with ten AN3-3A bolts previously removed.
(d)
Installchains on sprockets so previously installed ty-raps align with sprocket alignment marks.
(e)
Reconnect turnbuckles ensuring proper placement. Remove safety wire used to retain chains. Level pilot control wheel by adjusting turnbuckles A and B and taking up slack with turnbuckle C (Figure 402). Level copilot control wheel by adjusting turnbuckles B and C. Tension chain enough to remove slack, but not enough to increase friction. Through access hole in copilot column, deflect chain with finger applying approximately 5 pounds of pressure. Deflection must be between 1/4 -1/2 inch.
(f)
Remove rigging pins and ty-raps. Check aileron system friction per 27-10-00 page ??. Move controls through full travel range and check for free movement.
(g)
Install turnbuckle safety pins and access covers.
9. Removal of Aileron Control Section (Figure 401)
(a)
Disconnect cables and aileron control pushrod from sector.
NOTE: Both aileron and elevator sectors are located at Station 93.3. Though not integrally connected, a hinge bolt maintains their axial position. If is necessary, therefore, to remove aileron cables from their sector and loosen elevator cables so hinge bolt can be pulled out. The forward elevator sector will not be unhinged due to removal of aileron sector.
(b)
RemoveAN6-60A pivot bolt.
(c)
Rotate sector so grooves are facing fore and aft. Slide sector to left of aircraft and out from between bracket supports.
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