Harbor Freight Tools 67450 User Manual - Page 13
Contact Safety Trip Bump Fire Mechanism Definition, Contact Safety Trip Bump Fire Mechanism Testing
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SAFETY Contact Safety Trip (Bump Fire) Mechanism Definition The contact safety trip (or bump fire) mechanism allows rapid fire. The RED TRIGGER enables the contact safety trip mechanism. The tool should only fire if the Safety Nosepiece is pressed against the workpiece and the trigger is pulled. It should fire again if the trigger is released and pulled OR if the safety is lifted and pressed against the workpiece again. The Tool should not fire if the Safety Nosepiece is not pressed against an object. Contact safety trip / bump fire should only be enabled and used by skilled operators who are aware of the hazards and use proper, safe work practices. Contact Safety Trip (Bump Fire) Mechanism Testing Procedure TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Empty the tool before this procedure. Point the tool at a piece of scrap wood when testing. 1. Disconnect the tool from the air supply. 2. Empty the magazine of fasteners. 3. Check that the Trigger and the Safety Nosepiece move freely, without sticking. 4. Connect the air supply to the tool and set within the Operating Air Pressure indicated on the Specification chart. 5. Test the tool by pressing the Safety Nosepiece against the workpiece without pulling the Trigger. The tool must not cycle (fire). If it cycles (fires), stop immediately and have it repaired by a qualified service technician. 6. Hold the tool away, or off of the workpiece. The Safety Nosepiece should return to its original position. Squeeze the Trigger. The tool must not cycle (fire). If it cycles (fires), stop immediately and take the tool to a qualified service technician. 7. Press the Safety Nosepiece against the workpiece and squeeze the Trigger. The tool must cycle (fire) only once. Release the trigger and squeeze it again. The tool must cycle (fire) again only once. With the Trigger held, carefully lift the tool and press it against the workpiece again. The tool must cycle (fire) again only once. If it fails to act in the manner explained in bold, have it repaired by a qualified service technician. SETUP OPERATION MAINTENANCE Item 67450 For technical questions, please call 1-800-444-3353. Page 13