Ryobi D550H manual Features

FEATURES

DOUBLE INSULATION

Double insulation is a concept in safety in electric power tools, which eliminates the need for the usual three-wire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. Double insulated tools do not need to be grounded.

WARNING:

The double insulated system is intended to protect the user from shock resulting from a break in the tool's internal wiring. Observe all normal safety pre- cautions to avoid electrical shock.

Important: Servicing of a tool with double insulation requires extreme care and knowledge of the system and should be performed only by a qualified service technician. For service, we suggest you return the tool to your nearest authorized service center for repair. Always use original factory replacement parts when servicing.

ELECTRIC MOTOR

Your hammer drill has a precision built electric motor. It should be connected to a power supply that is 120 volts, 60 Hz, AC only (normal household current). Do not operate this tool on direct current (DC). A substantial voltage drop will cause a loss of power and the motor will overheat. If your tool does not operate when plugged into an outlet, double-check the power supply.

SWITCH

Your hammer drill has a conveniently located trigger switch.

LOCK-ON

The hammer drill contains a lock-on feature that allows you to lock the drill on when you operate it continuously for extended periods of time.

VARIABLE SPEED

This tool has a variable speed switch that delivers higher speed with increased trigger pressure. Speed is controlled by the amount of switch trigger depression.

REVERSIBLE

This hammer drill allows you to reverse the drill rotation. You can control the direction of the chuck with a lever located above the switch trigger.

DRILL MODE

You can change the drill mode depending on the type of material in which you are drilling.

DEPTH GAUGE ROD

A depth gauge rod is installed on the hammer drill to assist you in controlling the depth of drilled holes.

CHUCK KEY

A chuck key is provided for use when installing or removing bits. It is also used when removing the chuck.

AUXILIARY HANDLE

An auxiliary handle is installed on the hammer drill. For ease of operation, you may use the handle with either the left hand or the right hand.

ERGONOMIC DESIGN

The design of the hammer drill provides for easy handling. It is designed for comfort and ease of grasp when operating in different positions and at different angles.

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