Always check the tool for its overall condition and loose screws before operation. Tighten as required.
Make sure the safety mechanism is in working order before operation. First, disconnect the hose from the tool and open the magazine. Turn the lock knob (lock pin) to make sure the trigger is locked and released alternately with every quarter turn of the lock knob (lock pin).
Check walls, ceilings, floors, roofing and the like carefully to avoid possible electrical shock, gas leakage, explosions, etc. caused by striking lives wires, conduits or gas pipes.
ELock knob (Lock pin)
Live wire 2
5