PILOT OIL ACCUMULATOR MAINTENANCE - CONTINUED
TEST AND CHARGE - CONTINUED
Nitrogen Charging Procedure
WARN I N G
Injury or death can result from improper accumulator charging.
Dry nitrogen is only gas approved for use in accumulator. Charging accumulator with oxygen will
cause explosion. This danger will not occur if nitrogen cylinders with standard CGA (Compressed Gas
Association, Inc.) Number 580 connections are used.
When ordering nitrogen gas, make sure cylinders are equipped with CGA Number 580 connections.
DO NOT use color codes or other methods of identification to tell the difference between nitrogen and
oxygen cylinders. Never use an adapter to connect the nitrogen charging group to a valve outlet used
on nitrogen, oxygen, or other gas cylinders. MAKE SURE TO USE DRY NITROGEN (99.8% purity).
DO NOT disconnect or remove any hydraulic system line or fitting unless engine is shut down and
hydraulic system pressure has been relieved. Tighten all connections before applying pressure. Escap-
ing hydraulic fluid, under pressure, can penetrate skin, causing injury to personnel.
At operating temperature, hydraulic oil is hot. Allow hydraulic oil to cool before disconnecting any
hydraulic lines. Failure to follow this warning may result in injury to personnel.
Place shift lever in NEUTRAL
Place transmission neutralizer lockout in OFF
Engage parking brake (TM 5-3805-291-10).
Close valve (9) if open.
Turn T handle (8) on nitrogen charging chuck fully