Maintenance - Milwaukee 6539-1 Operator's Manual

Using the Lock Switch
Fig. 2
Unlock
Lock
When the battery pack is installed, the tool
is in operating condition. The lock switch
prevents accidental starting by locking the
forward/reverse switch. Always set the lock
switch to "lock" before performing mainte-
nance, changing accessories, storing the tool
and any time the tool is not in use.
1. To lock, push the lock switch in the
direction marked on the tool.
2. To unlock, push the lock switch in the
opposite direction.
Selecting High or Low Speed
Fig. 3
Low High
1. For high speed (400 RPM) and less
torque, push the speed selector back.
2. For low speed (200 RPM) and more
torque, push the speed selector for-
ward.
Selecting Forward or Reverse
Fig. 4
Forward
Reverse
Press the forward/reverse switch in the direc-
tion marked on tool for the desired rotation.
The switch will automatically return to the
center, OFF position when it is released.
APPLICATIONS
WARNING
To reduce the risk of injury, always
remove battery pack and lock trig-
ger before attaching or removing
accessories. Use only specifi cally
recommended accessories. Others
may be hazardous.
This tool provides a quick, convenient means
of installing and removing screws. Because of
the many screw sizes, types, thread engage-
ments and materials available, it is diffi cult to
limit the application of this tool by screw size.
However, for applications in wood, a #8 wood
screw with a full pilot hole is recommended
as a practical limit.
Driving Screws
1. Select the proper style and size screw-
driver bit for the type of screw being used
(see "Accessories").
2. With the screwdriver bit fi rmly seated in
the head of the screw, place the tip of the
screw on the workpiece and apply fi rm
pressure.
3. Press the forward/reverse switch to
"forward".
Removing Screws
Screws can be removed by reversing the
motor. If a screw is unusually tight and can
not be readily removed by the motor, lock the
bit. See "Locking the Bit".
Locking the Bit
When the forward/reverse switch is off,
the bit automatically locks in place allow-
ing you to use your screwdriver manually.
This feature is handy for tightening screws
that require more torque than the driver is
capable of delivering, when confi rming the
tightness of a screw or when loosening an
extremely tight screw.
8

MAINTENANCE

WARNING
To reduce the risk of personal injury,
always unplug the charger and re-
move the battery pack from the char-
ger or tool before performing any
maintenance. Never disassemble the
tool, battery pack or charger. Contact
a MILWAUKEE service facility for
ALL repairs.
Maintaining Tool
Keep your tool, battery pack and charger
in good repair by adopting a regular main-
tenance program. After six months to one
year, depending on use, return the tool,
battery pack and charger to a MILWAUKEE
service facility for:
• Lubrication
• Brush inspection and replacement
• Mechanical inspection and cleaning
(gears, spindles, bearings, housing,
etc.)
• Electrical inspection (battery pack,
charger, motor)
• Testing to assure proper mechanical and
electrical operation
If the tool does not start or operate at full
power with a fully charged battery pack,
clean the contacts on the battery pack. If
the tool still does not work properly, return
the tool, charger and battery pack to a
MILWAUKEE service facility for repairs.
Maintaining Battery Pack
MILWAUKEE battery packs will operate for
many years and/or hundreds of cycles when
they are maintained and used according to
these instructions.
A battery pack that is stored for six months
without being used will discharge itself. Bat-
teries discharge at a rate of about 1% per
day. Charge the battery every six months
even if it is unused to maximize battery life.
Do not tape the trigger in the "ON" position
and leave the tool unattended as this may
discharge the battery to a point where it will
no longer be able to recharge. Use a MIL-
WAUKEE battery pack only until it no longer
performs with the power and torque needed
for your application.
Store your battery pack in a cool, dry place.
Do not store it where the temperature may
exceed 120°F (50°C) such as in a vehicle
or metal building during the summer. High
temperatures will overheat the battery pack,
reducing battery life. If it is stored for several
months, the battery pack will gradually lose
its charge. One to three cycles of charging
and discharging through normal use will
restore the capacity of the battery pack. Dur-
ing the life of the battery pack, the operating
time between charges becomes shorter. If
the operating time becomes extremely short
after a proper charge, the usable life of the
battery pack has been reached and it should
be replaced.
WARNING
To reduce the risk of personal injury
and damage, never immerse your
tool, battery pack or charger in liquid
or allow a liquid to fl ow inside them.
Cleaning
Clean dust and debris from charger and tool
vents. Keep tool handles clean, dry and free
of oil or grease. Use only mild soap and a
damp cloth to clean the tool, battery pack
and charger since certain cleaning agents
and solvents are harmful to plastics and other
insulated parts. Some of these include gaso-
line, turpentine, lacquer thinner, paint thinner,
chlorinated cleaning solvents, ammonia and
household detergents containing ammonia.
Never use fl ammable or combustible sol-
vents around tools.
9