Bostitch N89C - Manual (Page 9)

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TOOL OPERATION (CONTINUED)
The Contact Trip (black) will not prevent a nail from being accidently driven if the trigger is
depressed and the “trip” is bumped against any object or person. Never hold or carry the
tool with your finger on the trigger. Only depress and hold trigger when you intend to
rapidly drive multiple nails and the tool is pointed at the work surface.
Never use contact trigger (black trigger) with metal connector attachment. Only use
sequential trigger (grey trigger) with metal connector attachment. Refer to trigger
conversion instruction included in the kit.
When using conventional Contact Trip for Place Nailing, the tool may bounce due to
recoil, and if the tool is allowed to re-contact the work surface while you are holding the
trigger pulled, a second unwanted nail will be driven. You should allow the tool to recoil
far enough to release the trip and avoid a second cycle. Don’t push the tool down extra
hard; let the tool do the work.
The operator must not hold the trigger pulled on contact trip tools except during
fastening operation, as serious injury could result if the trip accidentally contacted
someone or something, causing the tool to cycle.
Keep hands and body away from the discharge area of the tool. A contact trip tool may
bounce from the recoil of driving a fastener and an unwanted second fastener may be
driven, possibly causing injury.
Never use rafter hook to hang tool from body, clothing or belt.
TOOL OPERATION CHECK
CAUTION: Remove all fasteners from tool before performing tool operation check.
1. SEQUENTIAL TRIP OPERATION:
A. Press the contact trip against the work surface, without touching the trigger.
THE TOOL MUST NOT CYCLE.
B. Hold the tool off the work surface and pull the trigger.
THE TOOL MUST NOT CYCLE.
Release the trigger. The trigger must return to the trigger stop on the frame.
C. Pull the trigger and press the contact trip against the work surface.
THE TOOL MUST NOT CYCLE.
D. With finger off the trigger, press the contact trip against the work surface. Pull the trigger.
THE TOOL MUST CYCLE.
2. CONTACT TRIP OPERATION:
A. With finger off the trigger, press the contact trip against the work surface.
THE TOOL MUST NOT CYCLE.
B. Hold the tool off the work surface, and pull the trigger.
THE TOOL MUST NOT CYCLE.
C. With the tool off the work surface, pull the trigger. Press the contact trip against the work surface.
THE TOOL MUST CYCLE.
D. Without touching the trigger, press the contact trip against the work surface,
then pull the trigger.
THE TOOL MUST CYCLE.