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 TM 10-3930-660-24-1
BRAKE HYDRAULIC ACCUMULATOR MAINTENANCE - CONTINUED
0132 00
INSTALLATION
NOTE
Remove caps and plugs as hoses are installed. Wipe all sealing surfaces on hydraulic components and hoses
clean and dry. Apply film of clean hydraulic oil to all seals as they are installed.
1.
If removed, install adapter (3) to service brake hydrau-
lic accumulator (1).
2.
Bleed service brake hydraulic accumulator (1).
3.
Connect hose (2) to accumulator (1) at connector (3).
4.
Position accumulator (1) so it is lower than brake con-
4
trol valve.
5.
Start engine and allow fifteen seconds for accumulator
(1) to charge. Stop engine.
1
6.
Loosen hose (2) at adapter (3) and bleed accumulator
(1) until pressure escapes and hydraulic oil appears.
Tighten hose (2).
3
7.
Repeat steps 7 and 8 two additional times.
2
8.
Position service brake hydraulic accumulator (1) on
cab and secure with clamp (4).
409-517
TESTING
1.
With engine stopped, pump brake pedal until no power
assistance is felt through pedal. This will require
approximately 20 depressions of brake pedal.
1
CAUTION
Support accumulator so it does not drop when
clamps are removed.
NOTE
It is not necessary to disconnect hydraulic hose
from accumulator when testing or adjusting
accumulator precharge pressure.
7
2.
Remove clamps (4) securing service brake hydraulic
accumulator (1) to cab and lower service brake
6
hydraulic accumulator (1) to ground.
409-518
3.
Install charging and gauging assembly to service brake
hydraulic accumulator (1).
4.
Remove outer gas valve cap (6) and inner gas valve
cap (7) from accumulator (1).
0132 00-4
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