Milwaukee Tool 5263-21 - Manual (Page 5)

5
operaTion
Warning
To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifically recommended accessories.
Others may be hazardous.
Warning
To reduce the risk of injury,
keep hands and cord away from the bit and
all moving parts.
Warning
To reduce the risk of injury,
wear safety goggles or glasses with side
shields.
1. For rotation only, 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 .
Using the Control Switch
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.
Selecting Action
These MILWAUKEE Rotary Hammers have two
settings: rotation only and rotary hammering.
Fig. 1
For forward (clockwise) rotation, push the control
switch to the left side of the tool. Check the direction
of rotation before use.
For reverse (counterclockwise) rotation, push the
control switch to the right side of the tool. Check
direction of rotation before use.
applicaTions
Warning
To reduce the risk of elec-
tric shock, check work area for hidden pipes
and wires before drilling.
Drilling in Wood, Composition Materials and
Plastic
When drilling in wood, composition materials and
plastic, select the drill operating mode. Start the drill
slowly, gradually increasing speed as you drill. Se-
lect low speeds for plastics with a low melting point.
Drilling in Metal
When drilling in metal, select the drill operating
mode. Use high speed steel twist drills or hole
saws. Use a center punch to start the hole. Lubri-
cate drill bits with cutting oil when drilling in iron
or steel. Use a coolant when drilling in nonferrous
metals such as copper, brass or aluminum. Back
the material to prevent binding and distortion on
breakthrough.
Drilling in Masonry
When drilling in masonry, select the rotary hammer
operating mode. Use high speed carbide-tipped
bits. Drilling soft masonry materials such as cinder
block requires little pressure. Hard materials like
concrete require more pressure. A smooth, even
flow of dust indicates the proper drilling rate. Do
not let the bit spin in the hole without cutting. Do
not use water to settle dust or to cool bit. Do not
attempt to drill through steel reinforcing rods. Both
actions will damage the carbide.
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 securely 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.
Forward Reverse
Fig. 2