TM 5-2420-231-23-3
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CHARGING ACCUMULATOR
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WARNING
Protective face shield and gloves must always be worn when nitrogen lines are opened,
even if the gauges indicate system is empty.
Always use caution when disconnecting fittings. Slowly loosen the fitting in a well-
ventilated area.
Only service ride control accumulator in a well-ventilated area.
Failure to follow these warnings may result in injury to personnel.
1. Remove valve stem cap from accumulator.
2. Close (turn counterclockwise) valve A and open valve B. Close valves C and D.
3. Turn the stem out of valve F until the stem stops moving.
4. Disconnect valve F from the valve stem on the accumulator.
5. Remove cap from dry nitrogen tank.
7. Slowly turn valve A clockwise and read gauge E until the pressure is 2,413-2,580 kPa, 24-26 bar
(350-375 psi). Stop turning valve A.If the pressure increases above 2,580 kPa, 26 bar (375 psi), quickly open
and close valve D and read gauge E. If the pressure is still too high, close valve A (turn counterclockwise) a
small amount and quickly open and close valve D. The pressure shown on gauge E is the charge pressure.
8. Connect valve F to the valve stem on the accumulator. Turn the stem into valve F until the stem stops moving
and open valve D to charge the accumulator.
9. After the accumulator stops charging, turn the stem out of valve F until the stem stops moving.
10. Close valve B and disconnect the nitrogen charging kit from the valve stem in the accumulator.
11. Install valve stem cap (Figure 6, Item 1) on ride control accumulator (Figure 6, Item 2).
Figure 6. Ride Control Accumulator Valve Stem.
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