TM 5-3825-225-14&P
(8) Attach shoe return spring (1) to brakeshoes (2).
(9) Connect preformed packing (3, Appendix F, Figure 21), washer (4), and slack adjuster (5) with new
retaining ring (6).
(10) Connect slack adjuster (5) to brake chamber (see paragraph 4-23).
(11) Install brakedrum, hub and wheel bearings (see paragraph 4-25).
(12) Install wheels (see paragraph 4-26).
4-23. BRAKE CHAMBER REPLACEMENT.
a. Removal (See Appendix E Figure 26).
_________
WARNING
·
Open air reservoir draincocks before removing brake chamber or personnel could be Injured.
·
Use extreme caution when opening draincocks. Wear safety goggles to prevent eye injury
due to high pressure air.
(1) Open draincocks and drain air from air reservoirs.
(2) Tag and disconnect air lines from brake chamber (2).
(3) Remove cotter pin (5) and clevis pin (7). Discard cotter pin.
(4) Separate slack adjuster and clevis (6).
(5) Remove clevis (6) and nut (1).
(6) Remove nuts (4), lockwashers (3), and brake chamber (2). Discard lockwashers.
b. Installation (See Appendix E Figure 26).
(1) Attach brake chamber (2) to axle with new lockwashers (3) and nuts (4).
(2) Install nut (1) and clevis (6) to brake chamber (2).
(3) Connect slack adjuster to clevis (6) with clevis pin (7) and new cotter pin (5).
(4) Connect air lines to brake chamber (2) as tagged.
4-24. AIR RESERVOIRS AND BRAKE VALVES REPLACEMENT.
a. Removal (See Appendix F; Figures 23 and 25).
_________
WARNING
·
Use extreme caution when opening draincocks. Wear safety goggles to prevent eye injury
due to high pressure air.
(1) Open reservoir draincocks (9, Appendix F, Figure 25) and drain air from air reservoirs (see Figure 4-7).
(2) Tag and disconnect air lines from air reservoirs.
(3) Remove screws (12), washers (11), grommets (10), nuts (1), lockwashers (2), and pressure tanks (5, 8,
and 13) from frame. Discard lockwashers.
(4) Remove draincocks (9) from pressure tanks (5, 8, and 13).
(5) Remove brake valves (3 and 6) from pressure tanks (5 and 8).
(6) Remove brake valve (1, Appendix F, Figure 23) from pressure tank (13, Appendix F, Figure 25).
b. Installation (See Appendix F, Figures 23 and 25).
(1) Install draincocks (9, Appendix F, Figure 25) in pressure tanks (5, 8, and 13).
(2) Install brake valve (1, Appendix F, Figure 23) in pressure tank (13, Appendix F, Figure 25).
(3) Install brake valves (3 and 6) to pressure tanks (5 and 8).
(4) Install pressure tanks (5, 8 and 13) to frame with washers (11), screws (12), grommets (10), new
lockwashers (2) and nuts (1).
(5) Connect air lines to air reservoirs as tagged (see Figure 4-7).
(6) Charge the pressure tanks with air and check all joints and fittings for leaks.
4-22
