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page 6
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 .
NOTE: To engage the hammering mechanism, maintain pressure on
the bit. When pressure on the bit is released, the hammering action
will stop.
Starting, Stopping & Controlling Speed
1. To start the tool, pull trigger.
2. To stop the tool, release trigger.
3. To vary the speed, increase or decrease pressure applied to trigger.
Operating
Position the tool, grasp the handles firmly and pull the trigger. Always
hold the tool securely using both handles and 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 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.
Selector lever
Fig. 5
OPERATION
Using Rotary Percussion Core Bits (Fig. 6)
Core bits are useful for drilling large holes for conduit and pipe.
MILWAUKEE Heavy-Duty Thin Wall Core Bits have heat treated steel
bodies with durable carbide tips. They are specially designed for fast,
accurate drilling with combined hammering and rotary action.
Selecting Action (Fig. 5)
MILWAUKEE Rotary Hammers have three settings: drilling, rotary
hammer and hammering.
1. Clean and lubricate the threads on the adapter and core bit as
indicated (Fig. 6) to make later removal easier. Screw the threaded
end of the adapter into the rear of the core bit.
2. Push the guide plate onto the pointed end of the center pin. Insert the
center pin guide plate assembly into to the core bit. Be sure the small
end of the center pin is securely placed into the hole in the center of
the core bit.
3. Insert the adapter into the nose of the tool as described in Inserting
Drill Bit or Chisel. Set the rotary hammer/drill lever to rotary hammer.
4. Press the center pin firmly against your center mark, hold the tool
firmly and pull the trigger.
5. After drilling to about the depth of the core bit teeth, remove the
center pin and guide plate from the core bit. Resume drilling.
6. After you have finished drilling the hole, hold the tool upwards,
pointing it away from your body, and run it briefly in forward to
loosen the core bit from the adapter.
MILWAUKEE Heavy-Duty Thin Wall Core Bits drill holes up to 3" deep. To
make deeper holes, remove the bit, break and remove the core. Resume
drilling.
Adapter
Core Bit
Center Pin
Guide Plate
Clean and lubricate
threads
Fig. 6
To reduce the risk of injury, always wear
eye protection.
WARNING!