Piper Comanche PA-24 Service Manual page 379

Figure 6-29. Brake Assembly (Cleveland 30-23 or 30-41) PA-24-180 and PA-24-250,
6-81. Removal and Disassembly of Wheel Brak e Assembly. (Cleveland 30-23 or 30-41) PA-24-180 and
PA-24-250, S/N's 24-3296 and up; and PA-24-260 and PA-24-400. (Refer to Figure 6-29.)
a. To remove the brake assembly, first disconnect the brake line from the brake cylinder and cap it to
prevent contamination.
b. Remove the four cap bolts (1) that join the brake cylinder housing (3) and the lining back plate
assemblies (12). Remove the back plates from between the brake disc and wheel.
c. Slide the brake cylinder housing from the torque plate (13).
d. Slide the pressure plate (7) and lining (8) off the anchor bolts (14) of the cylinder housing.
e. The pistons (5) may be removed by injecting low air pressure in the cylinder fluid inlet and forcing
the pistons from the housings.
f. The lining (8 and 11) can be removed by prying it from the pressure plate and back plates.
6-82. Cleaning, Inspection and Repair of Wheel Brake Assembly.
a. Clean the assembly with a suitable solvent and dry thoroughly
b. Check the walls of the cylinder housing and pistons for scratches, burrs, corrosion, etc., that may
damage "O" rings.
c. Check the general condition of the brake bleeder screw and lines.
d. Check the brake disc for grooves. scratches or pits. A single groove or isolated grooves up to .031
of an inch deep would not necessitate replacement. but a grooving of the entire surface would
reduce lining life and should be replaced Should it be necessary to remove the wheel disc, refer to
Paragraph 6-87.
04/01/09
PIPER COMANCHE SERVICE MANUAL
Serial Nos. 24-3296 and up; and PA-24-260 and PA-24-400
VI - LANDING GEAR AND BRAKE SYSTEM
1K13