Operation

Installing Drill Bits and Chisels

NOTE: Only use accessories with SDS or SDS Plus shanks.

Be sure that the shank of the bit is clean. Dirt particles may cause the bit to line up improperly. Do not use bits larger than the maximum recommended capacity of the drill because gear damage or motor overloading may result. For best performance, be sure that the bit is properly sharpened and the shank is lightly greased before use.

1.Insert the bit or chisel into the nose of the tool.

2.Rotate bit slowly until it aligns with the locking mechanism.

3.Push bit into tool until it locks.

4.Check that the bit is locked properly; it should be possible to pull the bit back and forth slightly (about 1/4”).

5.To remove bits and chisels, pull bit holder release collar toward the rear of tool and remove bit.

NOTE: Use caution when handling hot bits and chisels.

Fig. 3

Release collar

WARNING

To reduce the risk of injury, keep hands away from the bit and all mov- ing parts. Always wear safety goggles or glasses with side shields.

Selecting Action

MILWAUKEE Rotary Hammers have three settings: drill only, rotary hammer, and ham- mer only.

Fig. 4

1.For drilling, turn the selector lever so the arrow on the lever points to the twist drill symbol .

2.For rotary hammering, turn the selector lever so the arrow points to the hammer

and twist drill symbol .

3.For hammering only, turn the selector lever so the arrow points to the hammer symbol .

4.To freely rotate the bit to the desired angle for chiseling only, turn the selector lever so the arrow points to the symbol O. Then, follow step 3.

NOTE: To engage the hammering mecha- nism, maintain pressure on the bit. When pressure on the bit is released, the hammer- ing action will stop.

Using the Control Switch

The control switch may be set to three positions: forward, reverse and lock. Due to a lockout mechanism, the control switch can only be adjusted when the trigger is not pulled. Always allow the motor to come to a complete stop before using the control switch.

For forward (clockwise) rotation, push in the control switch from the left side of the tool. Check the direction of rotation before use.

For reverse (counterclockwise) rotation, push in the control switch from the right side of the tool. Check direction of rotation before use.

To lock the trigger, push the control switch to the center position. The trigger will not work while the control switch is in the center locked position. Always lock the trigger or remove the battery pack before performing mainte- nance, changing accessories, storing the tool and any time the tool is not in use.

Starting, Stopping and Controlling Speed

1.To start the tool, grasp the handle ﬁrmly and pull the trigger.

2.To vary the speed, increase or decrease the pressure on the trigger. The further the trigger is pulled, the greater the speed.

3.To stop the tool, release the trigger. Make sure the tool comes to a complete stop before laying the tool down.

Operating

Position the tool, grasp the handles ﬁrmly and pull the trigger. Always hold the tool se- curely using both handles to maintain control. This tool has been designed to achieve top performance with only moderate pressure. Let the tool do the work.

If the speed begins to drop off when drilling large or deep holes, pull the bit partially out of the hole while the tool is running to help clear dust. Do not use water to settle the dust since it will clog the bit ﬂutes and tend to make the bit bind in the hole. If the bit should bind, a built-in, non-adjustable slip clutch prevents the bit from turning. If this occurs, stop the tool, free the bit and begin again.

V28™ Lithium-Ion Battery Pack

Unlike other battery pack types, Lithium-Ion battery packs deliver fade-free power for their entire run time. The tool will not experience a slow, gradual loss of power as you work. To signal to you that the V28 battery pack is at the end of its run time and needs to be charged, power to the tool will drop quickly. When this happens, remove the tool from the workpiece and charge the battery pack as needed.

Battery Pack Protection

To protect itself from damage and extend its life, the V28 battery pack's intelligent circuit will turn off the battery pack if its internal temperature becomes too high. This could happen in extremely high torque, binding and stalling situations. The pack must be placed on the charger to turn it back on. The charger's light indicator will ﬂash red, indicating that the pack is too hot. Once the light is continuously red, the pack has cooled and can be used again.

Cold Weather Operation

The V28 Lithium-Ion battery pack can be used in temperatures down to -4°F. When the battery pack is very cold, it may pulse for the ﬁrst minute of use to warm itself up. Put the battery pack on a tool and use the tool in a light application. After about a minute, the pack will have warmed itself up and operate normally.