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Page Title:
HYDRAULIC MASTER CYLINDER MAINTENANCE - continued |
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 TM 9-2320-361-24-1
0170 00
HYDRAULIC MASTER CYLINDER MAINTENANCE (Contd)
WARNING
Accidental or intentional introduction of liquid contaminants
into the environment is a violation of state, federal, and military
regulations. Refer to Army POL (WP 0001 00) for information
concerning storage, use, and disposal of these liquids. Failure to
do so may result in damage to environment and health of
personnel.
CAUTION
When disconnecting hydraulic lines and hoses, plug all openings
to prevent dirt from entering and causing internal parts
damage. Remove caps and plugs prior to installation.
INTERNAL LEAKAGE TEST
1.
Remove screw-assembled lockwasher (6) from brace (2) and open access door (1). Discard screw
assembled lockwasher (6).
2.
Disconnect line (3) from adapter (5).
3.
Remove two screws (8) and shield (9) from air-hydraulic cylinder (7).
NOTE
Use a drain pan to capture any draining brake fluid. Dispose of
fluids in accordance with local policy and ordinances. Ensure all
spills are cleaned up.
4.
Remove line (10) from adapter (11) and adapter (12).
NOTE
Have plug ready to replace adapter before removing adapter.
5.
Remove adapter (11) from master cylinder (4) and quickly install plug (13).
6.
Make sure master cylinder reservoir (4) is filled with brake fluid 0.5 in. (12.7 mm) from top.
Refer to WP 0020 00.
NOTE
Assistant will help with steps 7 and 8.
7.
Measuring distance alongside of brake pedal (14), step down slowly but firmly on brake pedal (14).
Maintain steady firm pressure for 30 seconds.
8.
Brake pedal (14) should not move more than 0.1250.25 in. (3.186.35 mm).
9.
If brake pedal (14) moves more than 0.1250.25 in. (3.186.35 mm) in 30 seconds, there is an
internal leak. Replace master cylinder (4).
NOTE
Use a drain pan to capture any draining brake fluid. Dispose of
fluids in accordance with local policy and ordinances. Ensure all
spills are cleaned up.
10.
Remove plug (13) and install adapter (11) in master cylinder (4).
11.
Install line (10) on adapter (11) and adapter (12).
12.
Install shield (9) on air-hydraulic cylinder (7) with two screws (8).
13.
Fill master cylinder reservoir (4) 0.5 in. (12.7 mm) from top (WP 0020 00).
14.
Connect line (3) on adapter (5).
15.
Close access door (1) and secure to brace (2) with new screw-assembled lockwasher (6).
0170 00-2
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