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Page 11

MAINTENANCE

GENERAL

Avoid using solvents when cleaning plastic parts. Most plas-
tics are susceptible to damage from various types of commer-
cial solvents and may be damaged by their use. Use clean
cloths to remove dirt, carbon dust, etc.

WARNING:

Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc. come in contact
with plastic parts. They contain chemicals that can
damage, weaken, or destroy plastic.

When electric tools are used on fiberglass boats, sports
cars, wallboard, spackling compounds, or plaster, it has
been found that they are subject to accelerated wear and
possible premature failure, as the fiberglass chips and
grindings are highly abrasive to bearings, brushes,
commutators, etc. Consequently it is not recommended that
this tool be used for extended work on any fiberglass material,
wallboard, spackling compounds, or plaster. During any use
on fiberglass it is extremely important that the tool is cleaned
frequently by blowing with an air jet.

EXTENSION CORDS

The use of any extension cord will cause some loss of power.
To keep the loss to a minimum and to prevent tool from
overheating, use an extension cord that is heavy enough to
carry the current the tool will draw.

A wire gage size (A.W.G.) of at least 16 is recommended for
an extension cord 100 feet or less in length. When working
outdoors, use an extension cord that is suitable for outdoor
use. The cord's jacket will be marked WA.

WARNING:

When servicing use only identical Ryobi replacement
parts. Use of any other parts may create a hazard or
cause product damage.

WARNING:

Always wear safety goggles or safety glasses with side
shields during power tool operation or when blowing dust.
If operation is dusty, also wear a dust mask.

WARNING:

Check extension cords before each use. If damaged
replace immediately. Never use tool with a damaged cord
since touching the damaged area could cause electrical
shock resulting in serious injury.

CAUTION:

Keep extension cords away from the drilling area and
position the cord so that it will not get caught on lumber,
tools, etc., during drilling operation.

WARNING:

Do not use this product as a component of other products.
Also, do not use attachments or accessories not
recommended for use with this product. Any such use
could result in possible serious personal injury.

LUBRICATION

All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication
is required.

Summary of Contents for D28VSR

Page 1: ...years of rugged trouble free performance CAUTION Carefully read through this entire owner s manual before using your new drill Pay close attention to the Rules for Safe Operation Warnings and Cautions...

Page 2: ...by themselves eliminate any danger The instructions or warnings they give are not substitutes for proper accident prevention measures SYMBOL MEANING SAFETY ALERT SYMBOL Indicates caution or warning M...

Page 3: ...heat oil and sharp edges 15 SECURE WORK Use clamps or a vise to hold work Both hands are needed to operate the tool 16 DON T OVERREACH Keep proper footing and balance at all times Do not use on a ladd...

Page 4: ...cated elsewhere in this instruction manual 31 DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF Have defective switches replaced by an authorized service center 32 DRILLING INTO ELECTRICAL WIRING...

Page 5: ...d the motor will overheat If this tool does not operate when plugged into an outlet double check the power supply KNOW YOUR ELECTRIC DRILL See Figure 1 Before attempting to use your drill familiarize...

Page 6: ...o turn your drill OFF LOCK ON BUTTON See Figure 3 Your drill is equipped with a lock on feature which is convenient when continuous drilling for extended periods of time is required To lock on depress...

Page 7: ...of your drill Turn counterclockwise to decrease the speed and torque of your drill If you desire to lock the switch on at a given speed depress the switch trigger push in and hold the lock on button a...

Page 8: ...could cause drill bit to be thrown from your drill resultinginpossibleseriouspersonalinjuryordamagetoyour chuck 4 Tighten the chuck jaws securely on drill bit 5 To tighten the chuck jaws on drill bit...

Page 9: ...ressure to keep the bit cutting Do not force your drill or apply side pressure to elongate a hole Let your drill and bit do the work See Figure 8 WARNING Be prepared for binding or breakthrough When t...

Page 10: ...5 This will loosen the chuck on the spindle 6 It can now be unscrewed by hand See Figure 9 7 Open the chuck jaws and remove hex key wrench TO RETIGHTEN A LOOSE CHUCK The chuck may at times become loos...

Page 11: ...is heavy enough to carry the current the tool will draw A wire gage size A W G of at least 16 is recommended for an extension cord 100 feet or less in length When working outdoors use an extension cor...

Page 12: ...Ryobi Authorized Service Center You can also check our web site at www ryobi com for a complete list of Authorized Service Centers MODEL NO AND SERIAL NO The model number of this tool will be found o...

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