TM 55-1520-240-23-6
7-226
DISASSEMBLE AND INSPECT BRAKE MASTER CYLINDER (AVIM)
(Continued)
7-226
Handle selector set with care to
prevent damage to mating surfaces.
20.
Tap housing (8) on workbench to remove selector
set (35).
21.
Remove three packings (36) and two retainers
(37) from selector set (35).
NOTE
Piston and sleeve are a matched
set. If one is damaged, both must be
replaced.
22.
Check that piston (37.1) slides easily in bore of
selector set (35). Do not remove piston.
23.
Remove spring (38) and packing (39) from
housing (8).
24.
Remove lockwire from plug (40). Remove plug,
spring (41), and poppet (42) from housing (8).
25.
Check poppet (42) and mating seat in housing
(8). There shall be no nicks or scratches.
26.
Remove packing (43) from plug (40).
27.
Remove lockwire and plug (44) from housing (8).
28.
Remove packing (45) and plug (44).
29.
Measure inside diameter of housing (8) at two
places (46 and 47). Large diameter (46) shall not
be more than 1.521 inches. Small diameter (47)
shall not be more than 1.191 inches.
30.
Measure outside diameter of housing (8) at end
(48). Diameter shall not be less than 1.372
inches.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
7-851
