Ryobi D550H manual Removing the Chuck, Tightening the Chuck, Mallet Chuck Jaws HEX KEY Screwdriver

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MAINTENANCE

REMOVING THE CHUCK

See Figures 12, 13, and 14.

Follow these directions to remove the chuck.

Unplug the hammer drill.

WARNING:

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

Open the chuck jaws by turning the chuck collar counterclockwise.

Insert a 5/16 in. (7.9 mm) or larger hex key into the chuck.

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

Loosen the chuck screw by tapping the hex key sharply with a mallet in a clockwise direction.

Open the chuck jaws and remove the hex key.

Remove the chuck screw by turning it in a clockwise direction with a screwdriver.

NOTE: The screw has left hand threads.

Reinsert the hex key into the chuck.

Tighten the chuck jaws securely using the chuck key provided.

Loosen the chuck by tapping the hex key sharply with a mallet in a counterclockwise direction.

Unscrew the chuck by hand.

TIGHTENING THE CHUCK

See Figures 12 and 13.

The chuck may become loose on the spindle and begin to shake when using the drill. Also, the chuck screw may become loose causing the chuck jaws to bind and prevent them from closing.

Follow these directions to tighten the chuck.

Unplug the hammer drill.

WARNING:

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

Open the chuck jaws by turning the chuck collar counterclockwise.

Insert a 5/16 in. (7.9 mm) or larger hex key into the chuck.

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

Tap the hex key sharply with a mallet in a clockwise direction to tighten the chuck on the spindle.

MALLET

CHUCK

JAWS

CHUCK

HEX KEY

Fig. 12

SCREWDRIVER

Fig. 13

MALLET

HEX KEY

CHUCK JAWS

CHUCK

Fig. 14

Open the chuck jaws and remove the hex key.

Tighten the chuck screw by turning it in a counter- clockwise direction with a screwdriver.

NOTE: The screw has left hand threads.

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Contents Operators Manual Save this Manual for Future ReferenceTable of Contents IntroductionPersonal Safety General Safety RulesElectrical Safety Work AreaAdditional Safety Rules Specific Safety RulesService Symbols Symbol Name DESIGNATION/EXPLANATIONApplications SpecificationsUnpacking InstructionsFeatures Mode Depthselector Gauge ROD LOCK-ON Button ChuckRemoving Bits OperationInserting Bits Chuck Jaws Drill BIT Chuck Collar Right WrongAdjusting the Drill Mode Adjusting the Handle AssemblyAdjusting the Depth Gauge ROD Handle Assembly Adjust Depth Gauge RODAdjusting the Speed Changing the RotationLocking on LOCK-ON Button Switch TriggerTurning the Hammer Drill ON/OFF DrillingLubrication MaintenanceGeneral Helpful TipsMallet Chuck Jaws HEX KEY Screwdriver Removing the ChuckTightening the Chuck Page Service Model NO. and Serial no