Installation Of Flexible Actuator Shaft; Removal Of Flap Transmission; Installation Of Flap Transmission - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
5-79. INSTALLATION OF FLEXIBLE ACTUATOR SHAFT. (Refer to Figure 5-23.)
a. Draw the shaft (4 or 6) through the wing into the fuselage.
b. Connect the flexible drive shafts to the transmissions. Be sure that the splines are properly
engaged and run the shaft attaching nut on finger tight. Safety the nut with MS20995-C41 safety wire.
c. Check the flap rigging and adjustments per instructions given in this section.
d. Install the access plates, panels, clamps, grommets and seats.
5-80. REMOVAL OF FLAP TRANSMISSION. (Refer to Figure 5-23.)
a. Lower the flap and remove the access plate on the aft underside of the wing and at the false spar
area, both of which are at station 92.50.
b. Disconnect the transmission tube (18) from the flap horn bracket (16).
c. Remove the safety wire (12) and disconnect the flexible actuator shaft (4 and 6).
d. Remove the spreader bushing and washers (15) from between the transmission attachment brackets.
e. Remove the transmission from its mounting brackets and draw the unit through the access opening
in the wing false spar.
5-81. DELETED.
5-82. DELETED.
5-83. DELETED.
5-84. DELETED.
5-85. INSTALLATION OF FLAP TRANSMISSION. (Refer to Figure 5-23.) Ascertain that the correct flap
transmission assemblies are being installed by checking the part numbers on the assemblies with information
in the latest PA-31-350 Parts Catalog.
a. Lubricate the flap transmission assembly in accordance with lubrication chart.
b. Insert the transmission through the access opening in the wing false spar and attach to its mounting
brackets. To allow the transmission to rotate, tighten the attachment bolts (26) only finger tight and safety.
c. Install the spreader bushing with one washer between each mounting bracket and bushing. Install
the through bolt and secure.
d. If working with the left transmission (7), connect the flexible actuator shaft (6) and safety with
MS20995-C41 safety wire. Attach the right flexible shaft (4) during rigging and adjustment.
e. Check the flap rigging and adjustment per instructions given in this section.
f. Install access plates.
Revised: 3/5/84
Effectivity
CALCO
SURFACE CONTROLS
1J20