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Page 9

WARNING:

Always wear safety goggles or safety glasses with side
shields when operating drill. Failure to do so could result
in dust, shavings, or loose particles being thrown into your
eyes, resulting in possible serious injury.

DRILLING

See Figure 8.

1.

Depress and release the switch trigger to be sure your
drill is in OFF position before connecting it to power
supply.

2.

Check the direction of rotation lever for correct setting
(forward or reverse). 

See Figure 4, Page 7.

3.

Secure the material to be drilled in a vise or with
clamps to keep it from turning as the drill bit rotates.

4.

Plug your drill into power supply source.

5.

Hold your drill firmly and place the bit at the point to be
drilled.

6.

Depress the switch trigger to start your drill. Do not
lock the switch ON for jobs where your drill may need
to be stopped suddenly.

7.

Move the drill bit into the workpiece applying only
enough pressure 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 these
situations occur, drill has a tendency to grab and kick in
the opposite direction and could cause loss of control
when breaking through material. If not prepared, this loss
of control can result in possible serious injury.

When drilling hard, smooth surfaces use a center punch to
mark the desired hole location. This will prevent the drill bit
from slipping off center as the hole is started. However, the
variable speed feature allows starting holes without center
punching if desired. To accomplish this, operate your drill at
a low speed until the hole is started.

When drilling metals use a light oil on the drill bit to keep it
from overheating. The oil will prolong the life of the bit and
increase the drilling action.

If the bit jams in the workpiece or if your drill stalls, stop the
tool immediately. Remove the bit from the workpiece and
determine the reason for jamming.

OPERATION

Fig. 8

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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