627. For tools intended to be fitted with threadedhole wheel, ensure that the thread in thewheel is long enough to accept the spindlelength.28. Check that the workpiece is properlysupported.29. Pay attention that the wheel continues torotate after the tool is switched off.30. If working place is extremely hot and humid,or badly polluted by conductive dust, use ashort-circuit breaker (30 mA) to assureoperator safety.31. Do not use the tool on any materialscontaining asbestos.32. When use cut-off wheel, always work with thedust collecting wheel guard required bydomestic regulation.33. Cutting discs must not be subjected to anylateral pressure.SAVE THESE INSTRUCTIONS.WARNING:DO NOT let comfort or familiarity with product(gained from repeated use) replace strict adherenceto safety rules for the subject product. MISUSE orfailure to follow the safety rules stated in thisinstruction manual may cause serious personalinjury. USD311-1SymbolsThe followings show the symbols used for tool.・ volts・ direct current・ rated speed・ no load speed・ revolutions or reciprocation per minuteENC007-10IMPORTANT SAFETYINSTRUCTIONSFOR BATTERY CARTRIDGE1. Before using battery cartridge, read allinstructions and cautionary markings on (1)battery charger, (2) battery, and (3) productusing battery.2. Do not disassemble battery cartridge.3. If operating time has become excessivelyshorter, stop operating immediately. It mayresult in a risk of overheating, possible burnsand even an explosion.4. If electrolyte gets into your eyes, rinse themout with clear water and seek medicalattention right away. It may result in loss ofyour eyesight.5. Do not short the battery cartridge:(1) Do not touch the terminals with anyconductive material.(2) Avoid storing battery cartridge in acontainer with other metal objects suchas nails, coins, etc.(3) Do not expose battery cartridge to wateror rain.A battery short can cause a large current flow,overheating, possible burns and even abreakdown.6. Do not store the tool and battery cartridge inlocations where the temperature may reach orexceed 50 ゚ C (122 ゚ F).7. Do not incinerate the battery cartridge even ifit is severely damaged or is completely wornout. The battery cartridge can explode in a fire.8. Be careful not to drop or strike battery.9. Do not use a damaged battery.10. Follow your local regulations relating todisposal of battery.SAVE THESE INSTRUCTIONS.CAUTION: Only use genuine Makita batteries.Use of non-genuine Makita batteries, or batteries thathave been altered, may result in the battery burstingcausing fires, personal injury and damage. It will alsovoid the Makita warranty for the Makita tool and charger.Tips for maintaining maximum battery life1. Charge the battery cartridge beforecompletely discharged.Always stop tool operation and charge thebattery cartridge when you notice less toolpower.2. Never recharge a fully charged batterycartridge.Overcharging shortens the battery service life.3. Charge the battery cartridge with roomtemperature at 10 ゚ C - 40 ゚ C (50 ゚ F - 104 ゚ F).Let a hot battery cartridge cool down beforecharging it.4. Charge the battery cartridge if you do not useit for a long period (more than six months).