Precautions For Cordless Rotary Hammer; Caution On Lithium-Ion Battery - Hitachi DH 14DSL Handling Instructions Manual

PRECAUTIONS FOR CORDLESS ROTARY HAMMER

1. Always charge the battery at a temperature of 0°C – 40°C.
A temperature of less than 0°C will result in over charging which is dangerous. The
battery cannot be charged at a temperature higher than 40°C.
The most suitable temperature for charging is that of 20°C – 25°C.
2. Do not use the charger continuously.
When one charging is completed, leave the charger for about 15 minutes before
the next charging of battery.
3. Do not allow foreign matter to enter the hole for connecting the rechargeable
battery.
4. Never disassemble the rechargeable battery and charger.
5. Never short-circuit the rechargeable battery. Short-circuiting the battery will cause
a great electric current and overheat. It results in burn or damage to the battery.
6. Do not dispose of the battery in fi re.
If the battery is burnt, it may explode.
7. When using this unit continuously, the unit may overheat, leading to damage in the
motor and switch. Please leave it without using it for approximately 15 minutes.
8. Do not insert object into the air ventilation slots of the charger.
Inserting metal objects or infl ammables into the charger air ventilation slots will
result in electrical shock hazard or damaged charger.
9. Using an exhausted battery will damage the charger.
10. When drilling in wall, fl oor or ceiling, check for buried electric power cord, etc.
11. Bring the battery to the shop from which it was purchased as soon as the post-
charging battery life becomes too short for practical use. Do not dispose of the
exhausted battery.
12. Wear ear protectors.
Exposure to noise can cause hearing loss.
13. Do not touch the bit during or immediately after operation. The bit becomes very
hot during operation and could cause serious burns.
14. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
15. Always hold the body handle and side handle of the power tool fi rmly. Otherwise
the counterforce produced may result in inaccurate and even dangerous operation.
16. Wear a dust mask
Do not inhale the harmful dusts generated in drilling or chiseling operation. The
dust can endanger the health of yourself and bystanders.

CAUTION ON LITHIUM-ION BATTERY

To extend the lifetime, the lithium-ion battery equips with the protection function to stop
the output.
In the cases of 1 and 2 described below, when using this product, even if you are pulling
the switch, the motor may stop. This is not the trouble but the result of protection
function.
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