Milwaukee Tool 5380-21 - Manual (Page 5)

8 9
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 to trigger. The further the trigger
is pulled, the greater the speed.
Locking Trigger
The lock button holds the trigger in the ON
position for continuous full speed use.
1. To lock the trigger, hold in the lock but-
ton while pulling the trigger. Release the
trigger.
2. To unlock the trigger, pull the trigger and
release. The lock button will pop out.
Operating
Position the tool, grasp the handles fi rmly 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 fl utes and tend to make the bit bind in
the hole. If the bit should bind, a built-in, non-
adjustable slip clutch activates. If this occurs,
stop the tool, free the bit and begin again.
Operator Force
This hammer-drill features the Vibration
Isolation System to provide the operator with
comfort without sacrifi cing power or perfor-
mance. The motor housing is suspended
independently from the switch handle. Insulat-
ing elements absorb vibration when hammer-
drilling and drilling.
Ideal operator force compresses the handle
slightly and allows the tool to work aggres-
sively while the handle provides maximum
vibration dampening.
Excessive operator force compresses the
handle too far and reduces the vibration
dampening. Users will be able to feel the
difference and should adjust the force to the
handle accordingly.
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. Select low speeds for
plastics with a low melting point.
Drilling in Metal
When drilling in metal, select the drill operat-
ing mode. Use high speed steel twist drills
or hole saws. Use a center punch to start
the hole. Lubricate 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 ma-
terial to prevent binding and distortion on
breakthrough.
Drilling in Masonry
When drilling in masonry, select the ham-
mer-drill 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 fl ow
of dust indicates the proper drilling rate. Do
not let the bit spin in the hole without cut-
ting. 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.
APPLICATIONS
WARNING
To reduce the risk of electric shock,
check work area for hidden pipes
and wires before drilling.
Maintaining Tools
Keep your tool in good repair by adopting a
regular maintenance program. Before use,
examine the general condition of your tool.
Inspect guards, switches, tool cord set and
extension cord for damage. Check for loose
screws, misalignment, binding of moving
parts, improper mounting, broken parts and
any other condition that may affect its safe
operation. If abnormal noise or vibration oc-
curs, turn the tool off immediately and have
the problem corrected before further use.
Do not use a damaged tool. Tag damaged
tools “DO NOT USE” until repaired (see
“Repairs”).
Under normal conditions, relubrication is not
necessary until the motor brushes need to
be replaced. After six months to one year,
depending on use, return your tool to the
nearest MILWAUKEE service facility for the
following:
• Lubrication
• Brush inspection and replacement
• Mechanical inspection and cleaning
(gears, spindles, bearings, housing,
etc.)
• Electrical inspection (switch, cord,
armature, etc.)
• Testing to assure proper mechanical and
electrical operation
WARNING
To reduce the risk of injury, always
unplug your tool before performing
any maintenance. Never disassemble
the tool or try to do any rewiring on
the tool's electrical system. Contact a
MILWAUKEE service facility for ALL
repairs.
MAINTENANCE
WARNING
To reduce the risk of injury, electric
shock and damage to the tool, never
immerse your tool in liquid or allow a
liquid to fl ow inside the tool.
Cleaning
Clean dust and debris from vents. Keep
the tool handles clean, dry and free of oil
or grease. Use only mild soap and a damp
cloth to clean your tool since certain cleaning
agents and solvents are harmful to plastics
and other insulated parts. Some of these
include: gasoline, turpentine, lacquer thinner,
paint thinner, chlorinated cleaning solvents,
ammonia and household detergents con-
taining ammonia. Never use fl ammable or
combustible solvents around tools.
Repairs
If your tool is damaged, return the entire tool
to the nearest service center.
ACCESSORIES
WARNING
To reduce the risk of injury, always
unplug the tool before attaching or
removing accessories. Use only spe-
cifi cally recommended accessories.
Others may be hazardous.
For a complete listing of accessories refer to
your MILWAUKEE Electric Tool catalog or go
on-line to www.milwaukeetool.com. To obtain
a catalog, contact your local distributor or a
service center.
Side Handle
Cat. No. 49-15-5300