4
IMPORTANT SAFETY
INSTRUCTIONS FOR BATTERY
CARTRIDGE
ENC004-1
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using battery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively shorter,
stop operating immediately. It may result in a risk
of overheating, possible burns and even an explo-
sion.
4. If electrolyte gets into your eyes, rinse them out
with clear water and seek medical attention right
away. It may result in loss of your eyesight.
5. Always cover the battery terminals with the bat-
tery cover when the battery cartridge is not used.
6. Do not short the battery cartridge:
(1) Do not touch the terminals with any conduc-
tive material.
(2) Avoid storing battery cartridge in a container
with other metal objects such as nails, coins,
etc.
(3) Do not expose battery cartridge to water or
rain.
A battery short can cause a large current flow,
overheating, possible burns and even a break-
down.
7. Do not store the tool and battery cartridge in loca-
tions where the temperature may reach or exceed
50°C (122°F).
8. Do not incinerate the battery cartridge even if it is
severely damaged or is completely worn out. The
battery cartridge can explode in a fire.
9. Be careful not to drop or strike battery.
SAVE THESE INSTRUCTIONS
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely
discharged. Always stop tool operation and
charge the battery cartridge when you notice less
tool power.
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room tempera-
ture at 10°C - 40°C (50°F - 104°F). Let a hot battery
cartridge cool down before charging it.
4. Charge the Nickel Metal Hydride battery cartridge
when you do not use it for more than six months.
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before adjusting or checking
function on the tool.
Installing or removing battery cartridge
(Fig. 1)
• Always switch off the tool before insertion or removal of
the battery cartridge.
• To remove the battery cartridge, pull out the set plate
on the tool and grasp both sides of the cartridge while
withdrawing it from the tool.
• To insert the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Snap the set plate back into place. Be sure
to close the set plate fully before using the tool to pre-
vent the battery cartridge from accidentally falling out of
the tool.
• Do not use force when inserting the battery cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
Switch action (Fig. 2)
CAUTION:
• Before inserting the battery cartridge into the tool,
always check to see that the switch trigger actuates
properly and returns to the “OFF” position when
released.
To start the tool, simply pull the switch trigger. Tool speed
is increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
Reversing switch action (Fig. 3)
This tool has a reversing switch to change the direction of
rotation. Slide the reversing switch to the right (appear “F”
marking) for clockwise rotation or to the left (appear “R”
marking) for counterclockwise rotation.
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation
before the tool stops may damage the tool.
Speed change (Fig. 4)
To change the speed, turn the speed change knob so that
the arrow of the desired speed on the knob is aligned with
the reference arrow on the tool body. If the speed change
knob does not turn easily, switch on the tool and turn the
knob again while the tool is running under no load. Be
sure that the speed change knob is set to the correct posi-
tion before operation. Use the right speed for your job.
Adjusting the fastening torque (Fig. 5)
The fastening torque can be adjusted in 6 steps by turning
the adjusting ring so that the pointer on the adjusting ring
points to a number on the tool body. The fastening torque
is minimum when the pointer points to the number 1 and
maximum when it points to the marking.
The clutch will slip at various torque levels when set at the
number 1 to 5. The clutch is designed not to slip at the
marking.
Before actual operation, drive a trial screw into your mate-
rial or a piece of duplicate material to determine which
torque level is required for a particular application.
