TM 5-3805-291-23-2
BRAKE ACCUMULATOR MAINTENANCE - CONTINUED
0114 00
CHARGING - CONTINUED
9.
Use 0 to 2,000 psi (0 to 13,800 kPa) pressure gage
(17) to check nitrogen charge in brake accumulator.
10.
Install chuck (18) of nitrogen charging valve on brake
accumulator.
11.
Open valve (19) and charge line (20) to correct pre-
charge.
12.
Turn valve handle (21) completely in clockwise direc-
tion.
13.
If reading on pressure gage is too high, slowly open
valve (19) to lower pressure. If reading on pressure
gage is too low, use this procedure to charge brake
accumulator:
427-C1046
a.
Connect hose from nitrogen cylinder to valve
(19).
b.
Close valve (19) and open valve on nitrogen cylinder. Adjust screw (22) on regulator assembly (23) until pressure
gage (24) is at correct charging pressure.
c.
Open valve (19) and charge brake accumulator. Then close valve. If pressure gage (17) and pressure gage (24)
show same reading and readings do not change, brake accumulator has correct charge.
d.
If pressure reading on gage (17) decreases, open valve (19) and allow more nitrogen to fill brake accumulator.
e.
Repeat this procedure until pressure gage (17) and pressure gage (24) show same reading. Make sure that neither
reading changes when valve (19) is closed.
14.
Close valve (19). Close valve on nitrogen cylinder.
15.
Turn valve (21) on chuck (18) in counterclockwise direction. Remove nitrogen fitting equipment.
16.
Repeat steps 1 thru 15 for other brake accumulator.
END OF WORK PACKAGE
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