Removal Of Main Gear Actuating Cylinders.; Removal Of Flap Actuating Cylinder.; Disassembly Of Gear And Flap Actuating Cylinders - Piper APACHE PA-23-235 Service Manual

PIPER AZTEC SERVICE MANUAL
6-90. REMOVAL OF MAIN GEAR ACTUATING CYLINDERS.
a. Place the airplane on jacks. (Refer to Jacking, Section II.)
b. Remove the access panel from the top center section of the nacelle. (Refer to Access
and Inspection Provisions, Section II.)
c. Disconnect the hydraulic lines from the actuating cylinder and cover the open line
ends to prevent contamination.
d. Remove the cotter pin, nut, washers and bolt securing the actuating rod end bearing
to the drag link assembly.
e.
Remove the cotter pin, nut, washers and bolt securing the top end of the hydraulic
cylinder.
f.
Remove the cylinder from the wheel well by removing the black plastic tape around
the cylinder and rubber boot and drawing the cylinder through the boot.
6-91. REMOVAL OF FLAP ACTUATING CYLINDER.
a. Remove the center seats from the airplane.
b. Remove the trim panels from right side of the cabin just aft of the cabin entrance door
by removing attaching screws.
c. Place the flap selector to the up position, to the down position, and then to neutral to
relieve any pressure in the hydraulic lines.
d. Disconnect the hydraulic lines from the flap cylinder. Cap the open line fittings to
prevent contamination.
e. Disconnect the cylinder piston rod end bearing from the flap bellcrank by removing
the self-locking nut, washer and bolt.
f.
Remove the cylinder from airplane by removing the cotter pin, nut, washer and bolt
securing the cylinder end fitting to the fuselage frame fitting.
6-92. DISASSEMBLY OF GEAR AND FLAP ACTUATING CYLINDERS. (Refer to
Figures 6-27 or 6-28.)
a. With the cylinder removed from the airplane, on early cylinders cut the safety wire (1)
and remove the two plugs (2) from the side of the cylinder body (10).
b. On early cylinders draw the piston assembly (8) and cylinder end (6) from the cylinder
body (10). On later cylinders, unscrew cylinder end (6) from cylinder body (10).
c. If necessary, the piston assembly (8) may be separated from the cylinder end (6) by
loosening the jam nut (4) and unscrewing the rod end (3) from the piston assembly.
d. For the flap actuating cylinder (refer to Figure 6-23), it may be necessary to remove the
tube (12), jam nut (13) and bushing (14) from the piston assembly (8).
HYDRAULIC SYSTEM
Reissued: 2/18/81
2E9