OPERATION
CHUCK REMOVAL
See Figures 12, 13, and 14.
Whenever necessary to remove the chuck for replacement, etc., use the following procedure for chuck removal:
1.UNPLUG YOUR HAMMER DRILL.
WARNING:
Failure to unplug your hammer drill could result in accidental starting causing serious injury.
2.Open chuck jaws. Insert a 5/16 inch or larger hex key wrench (allen wrench) into the chuck of your drill and tighten the chuck jaws securely.
3.Tap the hex key wrench sharply with a mallet in a clockwise direction. See Figure 12. This will loosen the chuck screw for removal.
4.Open the chuck jaws and remove hex key wrench. Remove the chuck screw by turning it in a clockwise direction. See Figure 13.
NOTE: The chuck screw has left hand threads.
5.Insert hex key wrench in chuck and tighten chuck jaws securely. Tap sharply with a mallet in a counterclock- wise direction. This will loosen the chuck on the spindle. It can now be unscrewed by hand. See Figure 14.
TO RETIGHTEN A LOOSE CHUCK
The chuck may at times become loose on the spindle and develop a wobble. Also, the chuck screw may become loose causing the chuck jaws to bind and prevent them from closing. To tighten, follow these steps:
1.UNPLUG YOUR HAMMER DRILL.
WARNING:
Failure to unplug your hammer drill could result in accidental starting causing serious injury.
2.Insert hex key wrench into chuck and tighten chuck jaws securely. Tap allen wrench sharply with a mallet in a clockwise direction. This will tighten the chuck on the spindle. See Figure 12.
3.Open the chuck jaws and remove hex key wrench.
4.Tighten the chuck screw.
NOTE: The chuck screw has left hand threads. See Figure 13.
MALLET
CHUCK
CHUCK
JAWS
HEX KEY WRENCH (ALLEN WRENCH)
Fig. 12
SCREWDRIVER
Fig. 13
MALLET
CHUCK
HEX KEY WRENCH (ALLEN WRENCH)
CHUCK REMOVAL | Fig. 14 |
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