CORDED HAMMER DRILL WITH 50-PIECE ACCESSORY KIT - 054-3179-0CORDED HAMMER DRILL WITH 50-PIECE ACCESSORY KIT - 054-3179-0
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PROBLEM POSSIBLE CAUSES SOLUTIONS
The motor does not start The tool is not connected to a power
source
Connect the tool to a power
source
The bit cannot be installed 1. The sleeve is not released
2. The bit does not fit the chuck jaw
1. Release the sleeve
2. Use the appropriate bit
The motor is overheating Cooling vents are obstructed Clean and clear vents. Do not
cover with hand during operation
Removing the chuck (fig 9)
1. Unplug the hammer drill from the power
source.
2. Open the chuck jaws by turning the sleeve in
a counter-clockwise direction.
3. Use a Phillips screwdriver (not included) to
remove the chuck screw by turning it in a
clockwise direction.
4. Insert a 5/16 in. or larger hex key (not
included) into the chuck and securely tighten the chuck jaws around the hex key.
5. Tap the hex key sharply with a mallet (not included) in a counter-clockwise direction. This will
loosen the chuck for easy removal.
The chuck screw has left-handed threads. Attach a new chuck to the spindle and tighten the
chuck screw.
MAINTENANCE
TROUBLESHOOTING
fig 9
Mallet
Chuck jaws
Hex wrench
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