6
Selecting the action mode
This tool has an action mode change lever. For rotation with hammering, slide
the action mode change lever to the right ( symbol). For rotation only, slide
the action mode change lever to the left ( symbol).
CAUTION:
• Always slide the action mode change lever all the way to your desired
mode position. If you operate the tool with the lever positioned halfway
between the mode symbols, the tool may be damaged.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and unplugged before
carrying out any work on the tool.
Installing side grip (auxiliary handle)
Always use the side grip to ensure operating safety. Install the side grip on tool
barrel.
Then tighten the grip by turning clockwise securely at the desired position. It
may be swung 360° so as to be secured at any position.
NOTE:
• The side grip cannot swing 360° when the depth gauge is installed.
Installing or removing drill bit
For Model HP1620, HP1620F
To install the bit, place it in the chuck as far as it will go. Tighten the chuck by
hand. Place the chuck key in each of the three holes and tighten clockwise. Be
sure to tighten all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise in just one hole, then
loosen the chuck by hand.
After using the chuck key, be sure to return to the original position.
For Model HP1621, HP1621F
Hold the ring and turn the sleeve counterclockwise to open the chuck jaws.
Place the bit in the chuck as far as it will go. Hold the ring firmly and turn the
sleeve clockwise to tighten the chuck.
To remove the bit, hold the ring and turn the sleeve counterclockwise.
1. Action mode changing lever
1
004362
1. Side grip
1
004363
1. Chuck key
1
004364
1. Sleeve
2. Ring
1
2
005963
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General
Weight and Dimensions
