Black & Decker DR550 - Manual (Page 8)

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Inserting a drill bit or other accessory (fig. B & C)
WARNING: Do not attempt to tighten drill bits (or any other accessory) by
gripping the front part of the chuck and turning the tool on. Damage to the chuck
and personal injury may occur when changing accessories.
WARNING: Always ensure the bit is secure before starting the tool. A loose bit
may eject from tool causing possible personal injury.
Keyless chuck (DR250) (fig. B)
• Open the chuck (6) by grasping the rear half (13) with one hand and use your other hand
to rotate the front sleeve (14) counterclockwise.
• Insert the accessory shaft into the chuck to about 3/4 in. (19 mm) depth, centered in the
jaws.
• Tighten securely by holding the rear half of the chuck and rotating the front sleeve in the
clockwise direction as viewed from the chuck end.
Keyless chuck with spindle lock (Soft Grip
TM
DR320KG / DR330)
This tool is equipped with a feature that automatically locks the spindle when the tool is
not running. This feature is a normal condition which allows for tightening or loosening of
the chuck with one hand while holding the drill with the other. The DR320KG also has a
soft grip for ease in tightening accessories.
NOTE: Move clutch to drill mode to tighten (DR330).
• Open the chuck (6) by turning the sleeve (13) counterclockwise.
• Insert the accessory shaft into the chuck to about 3/4 in. (19 mm) depth, centered in the
jaws.
• Tighten securely by turning the sleeve clockwise as viewed from the chuck end.
Chuck and key (DR550, DR650) (fig. C)
• Open the chuck (6) by turning the collar counterclockwise (when viewed from the chuck
end).
• Insert the accessory shaft into the chuck to about 3/4 in. (19 mm) depth, centered in the
jaws.
• Tighten chuck collar by hand. Place chuck key (7) into each of the three holes and
securely tighten in a clockwise direction.
NOTE: Tighten chuck with all three holes to prevent slippage.
Removing and attaching the chuck (fig. D)
Keyless chuck (DR250, DR320KG, DR330)
• Open the chuck (6) as far as possible.
• Remove the chuck retaining screw (15), located in the chuck, by turning it clockwise using
a screwdriver (lefthand thread).
• Tighten an Allen key (16) of 1/4 in. or greater size (not supplied) into the chuck and strike
it with a soft hammer (17) in a clockwise direction as shown.
• Remove the Allen key.
• Remove the chuck by turning it counterclockwise.
• To attach the chuck, screw it onto the spindle and secure it with the chuck retaining screw.
Keyed chuck (DR550, DR650)
(fig. E)
NOTE: Before attempting to remove chuck, shift the drill into the drilling mode (not
hammer, if so equipped).
• Place chuck key (7) in any one of the three holes in the chuck (6).
• Using a soft hammer (17), strike the key in a clockwise direction. This will loosen the
screw (15) inside the chuck.
• Open chuck jaws fully and remove the chuck retaining screw, located in the chuck, by
turning it clockwise using a screwdriver (lefthand thread).
• Place key in chuck. Using a soft hammer (17), strike key sharply in a counterclockwise
direction.
• Remove the chuck by turning it counterclockwise.
• To attach the chuck, screw it onto the spindle and secure it with the chuck retaining screw.
Belt clip (DR320KG, DR330, DR550)
WARNING: When using the belt clip (10) to transport the tool, do not leave an
accessory in the chuck.
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