TM 5-3805-290-23-2
BRAKE ACCUMULATOR REPLACEMENT - CONTINUED
0096 00
CHARGING - CONTINUED
N OT E
If accumulator has less than half of required amount of precharge pressure, accumulator should be
charged. Then charge accumulator again after applying service brakes repeatedly to prevent trapping oil in
accumulator. Oil in accumulator will give inaccurate precharge reading. Panel between right cab door and
5.
Remove cover (12) from brake accumulator. Remove
cap (13) from brake accumulator nitrogen charging
valve on accumulator.
6.
Use dial indicator (14) with range of 0 to 1,450 psi (0
to 10,000 kPa) to check nitrogen charge in brake accu-
mulators.
427-B0730
7.
Install chuck (15) on nitrogen charging valve of brake
accumulator.
8.
Open valve (16) and charge line (17) to correct pre-
charge.
9.
Turn valve handle (18) completely in clockwise direc-
tion.
10.
If reading on pressure gage is too high, slowly open
valve (16) to lower pressure. If reading on pressure
gage is too low, use this procedure to charge brake
accumulator:
427-B0613
a.
Connect hose from nitrogen cylinder to valve
(16).
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