This task cannot be performed without the special tools listed in the technical manual.
Ensure their availability and serviceable condition. These required items are:
Nitrogen purge, adapter (NSN 5855-01-125-0807)
Plier, slip joint (NSN 5120-00-624-8069)
Familiarity with the night vision goggle AN/PVS-7B is necessary to effectively perform
this task. Figure 6-1 illustrates the primary controls and indicators of the AN/PVS-7B.