TM 9-4110-255-14
Figure 5-9. Nitrogen Tank Connection
(3)
Be sure the service manifold compound gage and vacuum valves are closed.
(4)
Open the service manifold pressure gage and charge valves.
(5)
Disconnect or remove any flare connection as necessary to allow un-restricted flow of nitrogen through
item being brazed/debrazed.
(6)
Connect service manifold pressure gage hose to fitting, tubing, or component as necessary to allow
free flow of nitrogen through item being brazed/debrazed.
WARNING
Performing service operations on refrigeration components when the system is pressurized can
result in personal injury.
(7)
Open the nitrogen tank valve and adjust the regulator so that approximately 1-2 cfm (0.028-0.057
mminute) of nitrogen flows through the system. Do not allow pressure to build-up in system. Be sure
/
nitrogen is flowing with no restrictions.
5-17
