Quantcast Installation - TM-10-3930-673-20-20399

 

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SERVICE BRAKE HYDRAULIC ACCUMULATOR REPLACEMENT/REPAIR/TEST
Up
TM-10-3930-673-20-2 All Terrain Lifter Army System (ATLAS) 10 000 lb Capacity Manual
Next
est and Adjust Service Brake Hydraulic Accumulator Precharge Pressure.
TM 10-3930-673-20-2
(1)
Pump brake pedal
(TM 10-3930-673-10) to relieve accumulator
pressure.
With engine OFF (TM 10-3930-673-10), pump
brake pedal (TM 10-3930-673-10) until no
power assistance is felt through pedal. This will
require approximately 20 depressions of brake
TR00004
pedal.
(2)
Drain hydraulic oil from accumulator (1).
1
(a)
Place suitable container under
accumulator (1) to catch draining oil.
(b)
Disconnect hydraulic hose (2) from
adapter (3) on bottom of accumulator (1).
6
(c)
Allow accumulator (1) to drain
completely.
(3)
Remove three screws (4), lockwashers (5),
7
and accumulator (1) from cab (6). Discard
3
(4)
Remove adapter (3) and preformed packing
(7) from accumulator (1). Discard preformed
5
packing.
2
4
b. Installation.
NOTE
Apply coating of clean hydraulic oil to all seals
as they are installed.
(1)
Install preformed packing (7) and adapter (3) on accumulator (1).
NOTE
Accumulator must be precharged prior to bleeding and installation on cab.
(2)
Precharge service brake hydraulic accumulator (1) with nitrogen gas. Refer to c. Test and Adjust
Service Brake Hydraulic Accumulator Precharge Pressure.
12-25

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