Piper Cherokee LANCE, Service Manual

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PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
VI - LANDING GEAR AND BRAKE SYSTEM 03/27/08
(PA-32-260/300)
2B14
6-37. ASSEMBLY OF BRAKE MASTER CYLINDER. (Refer to Figure 6-12.)
NOTE: Use a small amount of hydraulic fluid (MIL-PRF-5606) on the “O” ring and component parts to
prevent damage and ease of handling during reassembly.
a. Install new “O” rings on the inside and outside of the packing gland (9) and on the outside of the
piston (6). (When installing teflon “O” ring (5) on piston, it is recommended that it be installed with
the use of a cone placed against the piston. The cone may be constructed of plastic or metal with
dimensions shown in Figure 6-12.)
b. To assemble the piston rod assembly, install on the rod (12), in order, the roll pins (14), return
spring retainer washer (15), return spring (13), packing gland (9) with “O” rings, seal (10), piston
(6) with “O” ring, spring (4) and retainer bushing (3). Secure these pieces with small ring (2) on the
end of the rod.
c. Insert the piston rod assembly in the cylinder (1) and secure packing gland with snap ring (11).
d. Install the cylinder per paragraph 6-38.
6-38. INSTALLATION OF BRAKE MASTER CYLINDER. (Hand Brake.) (Refer to Figure 6-11.)
a. Install the brake handle assembly between its mounting bracket and secure with bolt, washers, nut
and cotter pin. Washers should be placed on each side of the handle, between the bracket, and under
the nut.
b. Place the cylinder (8) between the mounting bracket and secure the base end with bolt, washers, nut
and cotter pin. This, too, should have washers placed on each side of the cylinder and under the nut.
c. Connect the rod end of the cylinder to the brake handle with a clevis pin and thin washers. Safety
the clevis with a cotter pin.
d. Connect the pressure line to the fitting at the bottom of the cylinder.
e. Connect the inlet supply line (12) to the fitting at the top of the cylinder and secure with spring
clamp.
f. Bleed the brake system per paragraph 6-45.