Ryobi D552HK manual Installing Bits, Removing Bits, Selecting hammer Mode or drilling mode

Page 11

operation

WARNING:

Always unplug the tool when installing or removing bits, adjusting settings, or when the tool is not in use. Failure to unplug the tool may result in accidental starting and serious personal injury.

INSTALLING BITS

See Figures 5 - 6.

Unplug the drill.

Insert the chuck key and twist counterclockwise.

Open or close the chuck jaws to a point where the opening is slightly larger than the bit size you intend to use. Also, raise the front of the drill slightly to keep the bit from falling out of the chuck jaws.

Insert the drill bit.

WARNING:

Make sure to insert the drill bit straight into the chuck jaws. Do not insert the drill bit into the chuck jaws at an angle then tighten, as shown in figure 6. This could cause the drill bit to be thrown from the drill, resulting in possible serious personal injury or damage to the chuck.

Tighten the chuck jaws securely on the drill bit, using the chuck key provided.

Remove the chuck key.

REMOVING BITS

See Figure 5.

Unplug the drill.

Loosen the chuck jaws using the chuck key provided.

Remove the drill bit.

Remove the chuck key.

SELECTING hammer MODE or drilling mode

See Figure 7.

To adjust for type of drilling, slide the selector on top of the motor housing to hammer mode or drilling mode. The hammer mode symbol is on the right and the drill bit symbol is on the left.

NOTE: The hammer drill has not been designed for reverse hammering.

Use carbide-tipped bits or designated hammer drill bits and select hammer mode when drilling in hard materials such as brick, tile, concrete, etc.

Select normal drill mode when drilling with twist drills, hole saws, etc., in soft materials.

 

RIGHT

 

 

TO

TO

Chuck KEY

TIGHTEN

 

LOOSEN

STORAGE

 

Chuck KEY

 

 

 

 

Chuck

Drill Bit

Chuck JAWS

Fig. 5

WRONG

Fig. 6

DRILLING/HAMMER

MODE SELECTOR

hammer

drill

Fig. 7

11

Image 11
Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsPersonal Safety General Safety RulesWork Area Safety Electrical SafetyService Specific Safety RulesName DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning ServiceExtension Cords ElectricalDouble Insulation Electrical ConnectionFeatures Operation AssemblyForward Rotation Removing Bits Installing BitsSelecting hammer Mode or drilling mode To adjust the auxiliary handle assembly Using the Auxiliary Handle AssemblyDrilling Maintenance To Retighten a Loose Chuck Chuck RemovalParts and Service