Ryobi D46C - Manual (Page 10)

10 − English
MAINTENANCE
WARNING:
When servicing, use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
WARNING:
Always wear eye protection marked to comply with ANSI
Z87.1. Failure to do so could result in objects being thrown
into your eyes resulting in possible serious injury.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. Chemicals can damage, weaken or
destroy plastic which may result in serious personal
injury.
Electric tools used on fiberglass material, wallboard, spackling
compounds, or plaster are subject to accelerated wear and
possible premature failure because the fiberglass chips and
grindings are highly abrasive to bearings, brushes, commuta-
tors, etc. Consequently, we do not recommended using this
product for extended work on these types of materials. How-
ever, if you do work with any of these materials, it is extremely
important to clean the product using compressed air.
LUBRICATION
All of the bearings in this product are lubricated with a suf-
ficient amount of high grade lubricant for the life of the unit
under normal operating conditions. Therefore, no further
lubrication is required.
CHUCK REMOVAL
See Figures 10 - 12, page 12.
The chuck may be removed and replaced with a new one.

Unplug the drill.
 Insert a 5/16 in. or larger hex key into the chuck of the
drill and tighten the chuck jaws securely.
 Tap the hex key sharply with a mallet in a clockwise
direction. This will loosen the screw in the chuck for easy
removal.
 Open the chuck jaws and remove the hex key. Using a
screwdriver, remove the chuck screw by turning it in a
clockwise direction.
NOTE: The chuck screw has left hand threads.
 Insert the hex key into the chuck and tighten the 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.
TO RETIGHTEN A LOOSE CHUCK
The chuck may become loose on the spindle and develop
a wobble. Also, the chuck screw may become loose, caus-
ing the chuck jaws to bind and prevent them from closing.
To tighten:

Unplug the drill.
 Open the chuck jaws.
 Insert a hex key into the chuck and tighten chuck jaws
securely. Tap the hex key sharply with a mallet in a
clockwise direction. This will tighten the chuck on the
spindle.
 Open the chuck jaws and remove the hex key.
 Tighten the chuck screw.
NOTE: FIGURES (ILLUSTRATIONS) START ON PAGE 11 AFTER
FRENCH AND SPANISH LANGUAGE SECTIONS.