Dewalt DWMT70786 Instruction Manual - Page 14

English Installing/Removing Drill Bits Continued • Tighten the chuck jaws by turning the front of the chuck clockwise, while holding the rear in place. DRILL BIT CHUCK NOTE: Whenever possible, secure the working piece in a vise or clamp prior to starting drilling. • To remove the drill bit, loosen chuck jaws by turning the front of the chuck counter-clockwise, while holding the rear in place. • Carefully remove drill bit when jaws are loose enough. OPERATING PROCEDURES START-UP (FIG. 1, PG. 2) • Turn on the air compressor and allow the air tank to be filled. • Set the air compressor regulator to 90 PSI. This air tool operates at a maximum of 90 PSI air pressure. • Adjust tool either in forward or reverse position. • Depress the trigger to start operating the tool. SHUT-DOWN (FIG. 1, PG. 2) • Release the trigger in order to stop the tool. • When changing drills or accessories, always disconnect air supply to avoid injury. • When job is completed, turn off the air compressor and store the air tool after lubrication. OPERATING INSTRUCTIONS • Mark the desired drilling location with an awl or punch to provide a seat for the tip of the bit. • Place drill bit tip on location of mark and apply pressure to trigger to start drill. If drilling metal, apply lubricant to reduce friction and glazing. • Apply constant, even pressure while guiding the drill. • Reduce pressure before cutting through workpiece. Continue depressing trigger until bit is fully removed from the drilled hole. WARNING: Use of safety glasses and a breathing mask is recommended. Drilling certain materials may create hazardous dust which may require special breathing equipment. Check before using the tool. Although the tool has a low noise level, the actual drilling process may cause a noise level such that ear protectors will be required. Safety gloves are recommended. CAUTION: Drill bit or surface may become extremely hot during drilling. DO NOT touch until cooled. 14