Parking Brake Valve Removal; Parking Brake Valve Disassembly - Piper PA-44-180 SEMINOLE Maintenance Manual

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PARKING BRAKE VALVE.
REMOVAL OF PARKING BRAKE VALVE.
1. Disconnect the parking brake cable from the valve actuating arm.
2. Disconnect the fluid lines from the valve.
3. Remove the screws that attach the valve to its mounting bracket.
4. Place a protective material over the line openings to prevent contamination of the system.
DISASSEMBLY OF PARKING BRAKE VALVE. (Refer to Figure 32-18.)
1. Remove the two fittings from the outside of the valve body. A valve spring is held in place by the fittings.
Use caution not to loosen these when removing the fittings.
2. From the valve body, remove the valve spring and valve.
3. To remove the valve cam, remove the nut, washer, bushing and spring and pull the cam from the valve body.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
8
9
6 7
4
5
3
2
Figure 32-18. Parking Brake Valve Assembly
2H16
12
13
10 11
1
16 17 18
15
14
19
1. VALVE BODY
2. FITTING
3. SPRING
4. VALVE
5. "O" RING
6. NUT
7. WASHER
8. BUSHING
9. SPRING
10. "O" RING
11. "O" RING
12. "O" RING
13. CAM
14. STUD
15. SWIVEL
16. LEVER
17. WASHER
18. NUT
19. COTTER PIN
3 2 - 4 4 - 0 8
Page 32-48
Revised: May 15, 1989