Ryobi HD500 specifications Installing Auxiliary Handle, Variable Speed Control Selector

VARIABLE SPEED

See Figure 5.

Your hammer drill has a variable speed control selector designed to allow operator control and adjustment of speed and torque limits. Speed and torque can be increased or decreased by rotating the variable speed control selector in the direction of the arrows shown in figure 5.

NOTE: Hold your hammer drill in normal operating position and turn the variable speed control selector clockwise to increase the speed and torque of your hammer drill. Turn counterclockwise to decrease the speed and torque of your hammer 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, and release the switch trigger. Next, adjust the variable speed control selector until the desired speed is reached.

NOTE: If the variable speed control selector is fully turned in the counterclockwise direction (zero setting) your drill may not run.

If you desire not to use the variable speed control selector, turn it in the full clockwise direction. This will allow the speed of your drill to be fully controlled by the amount of switch trigger depression.

Avoid running your hammer drill at low speeds for extended periods of time. Running at low speeds under constant usage may cause your drill to become overheated. If this occurs, cool your drill by running it without a load and at full speed.

The following guidelines may be used in determining correct speed for various applications:

LOW speed is ideal when minimum speed and power is required. For example: starting holes without center punch- ing, driving screws, mixing paint, and drilling in ceramics.

MEDIUM speed is suitable for drilling hard metals, plastics, and laminates.

HIGH speed produces best results when maximum power is required. For example: drilling in wood; soft metals such as aluminum, brass, and copper; and when using driving acces- sories.

INSTALLING AUXILIARY HANDLE

See Figure 6.

An auxiliary handle is packed with your hammer drill for ease of operation and to help prevent loss of control.

NOTE: For convenience the screw has been trapped inside the auxiliary handle.

1.Remove depth gage clamp and auxiliary handle from plastic bag in hammer drill box.

2.Orient depth gage clamp so that the tabs will fit into motor housing of hammer drill.

3.Thread depth gage clamp onto auxiliary handle until it reaches undercut area of screw threads. Undercut of screw threads will keep depth gage clamp on auxiliary handle, preventing it from getting lost.

VARIABLE SPEED

CONTROL SELECTOR

AUXILIARY

HANDLE

DEPTH

GAGE CLAMP

TABS

SLOTS

DEPTH

GAGE ROD

MOTOR

HOUSING

Fig. 6