3-10. PARKING BRAKE MAINTENANCE (CONT)
b. Parking Brake Valve.
This task covers disassembly, cleaning, inspection, and
reassembly of parking brake valve.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
Socket wrench set, 3/8 inch drive
Drive pin punch, 1/8 inch point
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Silicone lubricant (Appendix C, item 18)
Valve repair kit (FSCM 04692 PN 281126)
REFERENCE: TM 5-3805-262-20
DISASSEMBLY (SHEET 1 OF 2)
Parking brake valve removed from loader (refer to
(1) Remove two capscrews (1) and washers (2).
(2) Remove valve cover (3) and gasket (4). Discard gasket.
(3) Put a drive pin punch through hole in plunger (8) to prevent it from
moving. Remove and discard lock nut (5) and washer (6).
(4) Hit end of plunger (8) with
rubber mallet to loosen valve
(7) from plunger.