CHARGING BRAKE ACCUMULATOR
THIS WORK PACKAGE COVERS:
Connecting charging device, Checking precharge pressure, Charging accumulator,
Disconnecting charging device
Tools and Special Tools
General mechanics tool kit (item 1, WP 0717 00)
Temperature indicator (item 19, WP 0717 00)
Nitrogen charging kit (item 20, WP 0717 00)
Nitrogen (item 13, WP 0716 00)
Vehicle parked on a level surface with tracks blocked
and brakes released (TM 9--2350--292--10)
Subfloor plates #15 and #18 removed (WP 0454 00)
High pressure nitrogen gas is used in this equipment.
Keep face and hands away from valves and hose ends.
Failure to do this could result in serious injury.
Do not breathe nitrogen gas. Nitrogen gas can cause
death when inhaled.
When charging the accumulator use only oil--free nitrogen
per BB--N--411 Type 1, Class 1. Oil--free nitrogen tanks
are marked with one or two black bands at the top of the
tank. Do not use tanks without black band. Certain other
types of gases will cause the accumulator to explode,
resulting in possible death or injury.
To ensure that no damage is done to the braking system,
the accumulator must be charged to proper psi for the
braking system used in the vehicle. Maintenance person-
nel must determine which type of braking system (old
configuration, new configuration or new configuration with
braking modulation) is contained in the vehicle. Then the
appropriate Temperature vs. Pressure chart can be se-
lected and the proper charging pressure determined.
Several types of charging devices are available for use in
charging the accumulator. This procedure is based on
one of those devices. If a different charging device is
used, alter the instructions in this procedure as neces-