Operation - Milwaukee 6539-1 Operator's Manual

BATTERY PACK CARE AND USE
EXTENDING AND MAINTAINING
BATTERY PACK LIFE
MILWAUKEE battery packs will operate for many years and/or hundreds of cycles when they
are used, charged, and stored according to these instructions. Properly using, charging, and
storing your battery pack can greatly extend its life.
Charge the new battery pack over-
night before use to allow the cells
to become fully charged. New
battery packs are not fully charged. Two
to ten normal charging/discharging cycles
may be required before the pack can take
its maximum charge.
Never completely discharge the
battery pack. MILWAUKEE battery
packs do not develop a "memory"
when charged after only a partial discharge.
Taping-on triggers or leaving work lights on
for extended periods to completely discharge
the battery pack will reduce its life by upset-
ting the electrochemical balance and can
result in short-circuiting of the battery.
Do not charge batteries in hot or
cold places (below 40°F (5°C) or
above 105°F (40°C)). Temperature
extremes reduce the ability for battery pack
cells to hold a charge. Do not store batteries
where the temperature may exceed 120°F
(50°C), such as in a vehicle or metal building
during the summer.
To avoid overheating to a battery pack,
allow cordless tools cool down between
high torque drilling/cutting applications.
The increased energy discharge rate will
heat the battery pack cells faster than the
cells can release the heat. This could dam-
age the cells.
After use, allow a hot battery pack to
cool to room temperature before inserting it
into the charger. If a hot battery is put on a
charger, charging will not begin until the bat-
tery has cooled to a safe temperature. See
your charger manual for more information
on charging temperatures. Charging a hot
battery will damage the cells.
Never forcibly heat up or cool down bat-
teries. This will damage some cells in the
pack, causing them to not be able to hold
a charge.
Remove the battery pack from the tool
for charging when the tool can no longer
perform its intended function (i.e., drilling,
cutting, etc.).
Leave the battery pack on the
charger after it has reached a full
charge; the pack will continue to
receive a trickle charge to ensure capacity
is maintained.
Occasionally (once a week) leave the
batteries on the charger overnight to help
maintain cell balance.
Do not store the battery on the charger
(for more than 24 hours); this could re-
duce battery life.
Never leave batteries on chargers where
power interruptions are common. Damage
to the battery cells could occur.
Store batteries at room tempera-
ture away from moisture. Do not
store in damp locations where corro-
sion of terminals may occur.
Do not submerge your battery or cord-
less tools in water. This will damage the
battery and tool.
Charge unused batteries overnight at
least every six months to maximize bat-
tery life. Unused batteries discharge at a
rate of about 1% per day and will be fully
discharged after six months. For batteries
stored for a long time, two to ten normal
charging cycles may be required before the
pack is fully charged.
Do not use oil or solvents to clean or
lubricate your battery pack. The plastic
casing will become brittle and crack, causing
a risk of injury.
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WARNING
Charge only MILWAUKEE 2.4 Volt
battery packs in 2.4 Volt MILWAUKEE
chargers. Other brands of batteries
may explode causing personal injury
and damage.
For specifi c charging instructions,
please read the operator's manual
supplied with your charger.
Removing Battery Pack from Tool
Push in the release buttons (1) and pull the
battery pack away from the tool.

OPERATION

WARNING
To reduce the risk of injury, wear
safety goggles or glasses with side
shields.
Installing Bits
Always remove the battery pack and set
the lock switch to "lock" before inserting or
removing bits. Select the proper style and
size screwdriver bit for the type of screw you
are using (see "Accessories").
1. To install the bit, insert it into the bit
socket.
2. To remove the bit, pull it out of the bit
socket.
Adjusting the Handle
The handle is designed for convenience and
control. The durable, center pivot allows the
handle to be used in the conventional shape
or folded into a pistol grip. Access to the
forward/reverse switch and lock switch is
comfortable in either handle position.
Inserting Battery Pack into Tool
The battery pack may feel warm after the
charging cycle. If it is warm, maximize the
output of the battery by allowing it to cool for a
few minutes before inserting it into the tool.
To insert the battery pack into the tool, push
in the release buttons (1) and slide it into the
body of the tool.
Fig. 1
Using the Adjustable Clutch
This tool has an adjustable clutch for driving
different types of screws into different materi-
als. When properly adjusted, the clutch will
slip at a preset torque to prevent driving the
screw too deep and to prevent damage to
the screw or tool. Refer to the following table
to select the correct position for the type of
material and screw size you are using.
To adjust the clutch, turn the clutch adjusting
ring so that the desired setting lines up with
the dot on motor housing as shown.
The torque specifications shown here are ap-
proximate values obtained with a fully charged
battery pack.
2 Speed
(in. lbs.)
Clutch 1 Speed
Setting (in. lbs.) Lo Applications
Hi
1 5 3.5 Small screws in
3.5
2 5 7 7 softwood.
3 12 10.5 10.5 Medium screws
4 12-16 14 in softwood or
13
small screws in
hardwood.
5 12-16 17.5 Large screws
13
6 22 26 13 in softwoods.
Medium screws
in hardwood or
large screws in
hardwood with
NOTE: Because the settings shown in the table are
only a guide, use a piece of scrap material to test
the different clutch settings before driving screws
into the workpiece.
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