Ryobi D550H manual Operation, Inserting Bits, Removing Bits

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OPERATION

WARNING:

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

INSERTING BITS

See Figure 2.

Follow these directions to insert bits.

Unplug the hammer drill.

WARNING:

Failure to unplug the tool could result in accidental starting causing possible serious injury.

Position the chuck jaws so that the opening is slightly larger than the drill bit you intend to use.

NOTE: To open the chuck jaws, turn the chuck collar counterclockwise. To close the chuck jaws, turn the chuck collar clockwise.

Raise the front of the drill to keep the drill bit from falling out of the chuck jaws.

WARNING:

Do not insert a drill bit into the chuck jaws and tighten as shown in Figure 3. This could cause the drill bit to be thrown from the drill resulting possible serious injury or damage to the chuck.

Insert the drill bit completely into the chuck.

Tighten the chuck jaws securely on the drill bit using the chuck key provided. Do not use a wrench to tighten or loosen the chuck jaws.

REMOVING BITS

Follow these directions to remove bits.

Unplug the hammer drill.

WARNING:

Failure to unplug the tool could result in accidental starting causing possible serious injury.

Loosen the chuck jaws using the chuck key pro- vided.

Remove the drill bit from the chuck jaws.

CHUCK JAWS

DRILL BIT

CHUCK COLLAR

RIGHT

Fig. 2

WRONG

Fig. 3

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Contents Save this Manual for Future Reference Operators ManualIntroduction Table of ContentsElectrical Safety General Safety RulesPersonal Safety Work AreaSpecific Safety Rules ServiceAdditional Safety Rules Symbol Name DESIGNATION/EXPLANATION SymbolsUnpacking SpecificationsApplications InstructionsFeatures Chuck Mode Depthselector Gauge ROD LOCK-ON ButtonInserting Bits OperationRemoving Bits Chuck Jaws Drill BIT Chuck Collar Right WrongAdjusting the Depth Gauge ROD Adjusting the Handle AssemblyAdjusting the Drill Mode Handle Assembly Adjust Depth Gauge RODChanging the Rotation Adjusting the SpeedTurning the Hammer Drill ON/OFF LOCK-ON Button Switch TriggerLocking on DrillingGeneral MaintenanceLubrication Helpful TipsRemoving the Chuck Tightening the ChuckMallet Chuck Jaws HEX KEY Screwdriver Page Service Model NO. and Serial no