Assessments - 2, GPA: 4.5
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Check to see that the switch is “OFF”. Make sure that the power circuit voltage is the same as that shown on the specification plate of the tool. Connect the drill to the power circuit. 1. Squeeze the trigger switch (A) Fig. 1 to start the motor. Release the trigger to stop the motor. 2. A lock button (B) Fig. 1 is provided to keep the motor running without holding the trigger switch “ON”. TO LOCK the trigger switch “ON”, squeeze the trigger as far as it will go, push in lock button and release trigger. TO UNLOCK the lock button, squeeze the trigger and release, leaving the lock button free to spring out. NOTE: The lock button can be engaged only when the tool is running at maximum speed. Never use the lock button when the tool may have to be stopped suddenly. A BC Fig. 1 3. These tools will operate in either the forward direction (clockwise rotation) for drilling holes, or the reverse direction (counter-clockwise rotation) for releasing jammed drill bits. For counter-clockwise rotation, stop the motor by releasing the trigger switch and push the reversing switch (C) Fig. 1 toward the right side of the drill, or in the opposite direction for clockwise rotation. 8 Never attempt to change direction of rotation while the switch is “ON”. To do so, may damage interlock feature built into switch. Be sure that the switch is “OFF” and the motor has completely stopped before changing the direction of rotation. 4. VARIABLE SPEED – As the trigger switch is squeezed, the tool speed increases. TO CHANGE HEX NUTSETTER – MODEL 4640 DISCONNECT TOOL FROM POWER SOURCE. 1. Pull the Depth Stop Assembly (A) Fig. 2 from the clutch housing (B). 2. Pull the nutsetter (C) Fig. 3 straight out. If it is difficult to remove, grip it with pliers and pull. 3. Push the nutsetter into the screwdriver spindle until the ball in the spindle snaps into the groove in the nutsetter shank. 4. Replace the depth stop assembly and adjust for depth of drive (see “ADJUST DEPTH STOP, MODEL 4640”). A B C Fig. 2 Fig. 3 ADJUST DEPTH STOP – MODEL 4640 1. Turn the adjusting collar (A) Fig. 2 until the end of the depth stop is flush with the end of the nutsetter. Do not push the nutsetter in. This will engage the internal drive. 2. Drive a test fastener into a piece of scrap material identical to the workpiece. Examine the results of the drive and make any necessary depth stop adjustments. a) To increase the depth of drive, repeat STEP 1 and turn the adjusting collar so that the end of the nutsetter extends beyond the end of the depth stop. b) To decrease the depth of drive, repeat STEP 1 and turn the adjusting collar so that the end of the depth stop extends beyond the end of the nutsetter. Each click of the adjusting collar results in .007" change in the depth of drive. 3. Repeat STEPS 1 and 2 until the desired result is obtained. 9 A B CFig. 4 A B CFig. 4 CHANGE BIT HOLDER – MODELS 4630, 4634 DISCONNECT TOOL FROM POWER SOURCE. 1. Pull the Depth Stop Assembly (A) Fig. 4 from the clutch housing. 2. Pull the bit holder (C) Fig. 4 out. If it is difficult to remove, grip it with pliers and pull. NOTE: You can remove the bit (B) Fig. 4 from the bit holder by pulling it straight out. 3. Push the new bit holder into the spindle and snap it into place. 4. Replace the Depth Stop Assembly and adjust the depth stop (see “ADJUST DEPTH STOP, MODELS 4630 AND 4634”). ADJUST DEPTH STOP – MODELS 4630 AND 4634 1. Turn the adjusting collar until the end of the bit extends 3/32" beyond the end of the depth stop. Do not push the bit holder in. This will engage the internal drive. 2. Drive a test fastener in the same material as your workpiece. Examine the results and make any additional depth stop adjustments: a) To increase the depth of drive, repeat STEP 1 and turn the adjusting collar so that the end of the bit extends further than the end of the depth stop. b) To decrease depth of drive, repeat STEP 1 and turn the adjusting collar so that the end of the bit is closer to the end of depth stop. Each click of the adjusting collar results in a .007" change in the depth of drive. 3. Repeat STEPS 1 and 2 until the desired result is obtained. DRIVING DRYWALL SCREWS – MODELS 4630, 4634 NOTE: Maximum size screw for use with this tool is #12 Wood Screw. 1. Install a drywall bit and bit holder in the screwdriver. 2. Set the screwdriver for the correct rotation. 3. Start the screwdriver and place a drywall screw on the bit. Do not exert pressure on the screw while performing this operation. 4. Place the end of the screw in the desired location and remove your fingers. 5. Apply forward pressure to the drive screw until the depth stop rests on the surface of the work. Adjust the depth stop so that the fastener head is sunk just below the surface of the wallboard. 10 DRIVING SELF-DRILLING/TAPPING SCREWS – MODELS 4640 NOTE: Maximum size screws for use with this tool are #12 wood screws and 1/4" self-drilling/tapping screws. These screws drill and tap their own hole as they are driven. Th...
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