Ryobi HD501 - Manual (Page 13)

Page 13
CHUCK REMOVAL
CHUCK REMOVAL
See Figures 11, 12, and 13.
Whenever necessary to remove the chuck for replacement,
use the following procedure for chuck removal:
■ UNPLUG YOUR HAMMER DRILL.
WARNING:
Failure to unplug your hammer drill could result in
accidental starting causing serious injury.
■ Open chuck jaws. Insert a 5/16 in. (8 mm) or larger hex
key into the chuck of your drill and tighten the chuck jaws
securely.
■ Tap the hex key sharply with a mallet in a clockwise
direction.
See Figure 11. This will loosen the chuck screw
for removal.
■ Open the chuck jaws and remove hex key. Remove the
chuck screw by turning it in a clockwise direction.
See
Figure 12.
NOTE: The chuck screw has left hand threads.
■ Insert hex key in chuck and tighten chuck jaws securely.
Tap sharply with a mallet in a counterclockwise direction.
This will loosen the chuck on the spindle. It can now be
unscrewed by hand.
See Figure 13.
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:
■ UNPLUG YOUR HAMMER DRILL.
WARNING:
Failure to unplug your hammer drill could result in
accidental starting causing serious injury.
■ Insert hex key into chuck and tighten chuck jaws securely.
Tap hex key sharply with a mallet in a clockwise direction.
This will tighten the chuck on the spindle.
See Figure 11.
■ Open the chuck jaws and remove hex key.
■ Tighten the chuck screw.
NOTE: The chuck screw has left hand threads. See
Figure 12.
Fig. 11
Fig. 13
Fig. 12
OPERATION
CHUCK
CHUCK
JAWS
MALLET
HEX KEY
SCREWDRIVER
HEX KEY
CHUCK
MALLET