5.Do not short the battery cartridge:
(1)Do not touch the terminals with any conductive 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 breakdown.
6.Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50 °C (122 °F).
7.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.
8.Be careful not to drop or strike battery.
9.Do not use dropped or struck 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 temperature at 10 °C - 40 °C (50 °F - 104 °F). Let a hot battery cartridge cool down before charging it.
FUNCTIONAL DESCRIPTION
CAUTION:
•Always be sure that the tool is switched off and the battery 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, withdraw it from the tool while pressing the buttons on both sides of the cartridge.
•To insert the battery cartridge, hold it so that the battery cartridge front shape fits to that of the battery installment opening and slip it into place.
Always insert it all the way until it locks in place with a little click. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.
•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.
Turning on the front lamp (Fig. 3)
CAUTION:
• Do not look in the light or see the source of the light directly.
Pull the switch trigger to turn on the light. The lamp keeps on lighting while the switch trigger is being pulled. The lamp turns off 10
NOTE:
•Use a dry cloth to wipe the dirt off the lens of lamp. Be careful not to scratch the lens of lamp, or it may lower the illumination.
Reversing switch action (Fig. 4)
This tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the A side for clockwise rotation or from the B side for counterclockwise rotation.
When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled.
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.
•When not operating the tool, always set the reversing switch lever to the neutral position.
Speed change (Fig. 5)
To change the speed, first switch off the tool and then slide the speed change lever to the “2” side for high speed or “1” side for low speed. Be sure that the speed change lever is set to the correct position before operation. Use the right speed for your job.
CAUTION:
•Always set the speed change lever fully to the correct position. If you operate the tool with the speed change lever positioned halfway between the “1” side and “2” side, the tool may be damaged.
•Do not use the speed change lever while the tool is running. The tool may be damaged.
Adjusting the fastening torque (Fig. 6)
The fastening torque can be adjusted in 18 steps by turning the adjusting ring so that its graduations are aligned with the pointer on the tool body. The fastening torque is minimum when the number 1 is aligned with the pointer, and maximum when the 
marking is aligned with the pointer.
The clutch will slip at various torque levels when set at the number 1 to 18. The clutch is designed not to slip at the 
marking.
Before actual operation, drive a trial screw into your material or a piece of duplicate material to determine which torque level is required for a particular application.
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