Do you have a question about the Hitachi NR90AD and is the answer not in the manual?
Assume tool is loaded; never aim at yourself or others to prevent accidental discharge.
Ensure air pressure is between 4.9-8.3 bar (70-120 psi) for safety and longevity.
Always wear eye protection and ensure bystanders do too.
Verify air pressure is within the 4.9-8.3 bar (70-120 psi) range.
Press push lever against object, then pull trigger to drive nail (sequential trip).
Turn adjuster to control nail depth after disconnecting air hose.