Hitachi DV18DCL Handling Instructions - Page 10

CAUTION ○ The selection examples shown in Table 5 should be considered as general standard. As different types of tightening screws and different materials to be tightened are used in actual works proper adjustments are naturally necessary. ○ When using the screwdriver with a machine screw at HIGH (high speed), a screw may damage or a bit may loose due to the tightning torque is too strong. Use the screwdriver at LOW (low speed) when using a machine screw. NOTE The use of the battery BCL1415 and BCL1815 in a cold condition (below 0 degree Centigrade) can sometimes result in the weakened tightening torque and reduced amount of work. This, however, is a temporary phenomenon, and returns to normal when the battery warms up. 7. Mounting and dismounting of the bit (1) After inserting a driver bit, etc. into the keyless drill chuck, firmly grasp the ring and tighten the sleeve by turning it toward the right (in the clockwise direction as viewed from the front) (See Fig. 8). ○ If the sleeve becomes loose during operation, tighten it further. The tightening force becomes stronger when the sleeve is tightened additionally. (2) Dismounting the bit Firmly grasp the ring and loosen the sleeve by turning it toward the left (in the counter-clockwise direction as viewed from the front) (See Fig. 9). CAUTION When it is no longer possible to loosen the sleeve, use a vise or similar instrument to secure the bit. Set the clutch mode between 1 and 11 and then turn the sleeve to the loose side (left side) while operating the clutch. It should be easy now to loosen the sleeve. 8. Confirm that the battery is mounted correctly 9. Check the rotational direction The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the selector button. The L-side of the selector button is pushed to turn the bit counterclockwise (See Fig. 9) (The and marks are provided on the body). CAUTION Always use this unit with clockwise rotation, when using it as an impact drill. 10. Switch operation ○ When the trigger switch is depressed, the tool rotates. When the trigger is released, the tool stops. ○ The rotational speed of the drill can be controlled by varying the amount that the trigger switch is pulled. Speed is low when the trigger switch is pulled slightly and increases as the trigger switch is pulled more. NOTE A buzzing noise is produced when the motor is about to rotate; This is only a noise, not a machine failure. 11. For drilling into brick Excessive pressing force never increases drilling speed. It will not only damage the drill tip or reduce working efficiency, but could also shorten the service life of drill bit. Operate the hammer drill within 10-15 kg pressing force while drilling into brick. 12. Using the bit holder CAUTION ○ Stow the bit in the specified location on the tool. If the tool is used with the bit stowed improperly, the bit may fall and cause bodily injury. ○ Do not stow bits that are of a different length, gauge or dimension than the plus driver bit (65 mm long) included in the STANDARD ACCESSORIES. The bit may fall and cause bodily injury. (1) Removing the bit Securely hold the main unit and pull out the bit by holding the tip with your thumb (Fig. 10). (2) Installing the Bit Install the bit with steps opposite of when removing. Insert the bit so that the right and left sides are equal, as shown in Fig. 11 MAINTENANCE AND INSPECTION 1. Inspecting the tool Since use of as dull tool will degrade efficiency and cause possible motor malfunction, sharpen or replace the tool as soon as abrasion is noted. 2. Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard. 3. Maintenance of the motor The motor unit winding is the very "heart" of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water. 4. Cleaning on the outside When the combi drill is stained, wipe with a soft dry cloth or a cloth moistened with soapy water. Do not use chloric solvents, gasoline or paint thinner, for they melt plastics. 5. Storage Store the combi drill in a place in which the temperature is less than 40°C and out of reach of children. NOTE Make sure that the battery is fully charged when stored for a long period (3 months or more). The battery with smaller capacity may not be able to be charged when used, if stored for a long period. 6. Service parts list CAUTION Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. MODIFICATIONS Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements. Accordingly, some parts may be changed without prior notice. Important notice on the batteries for the Hitachi cordless power tools Please always use one of our designated genuine batteries. We cannot guarantee the safety and performance of our cordless power tool when used with batteries other than these designated by us, or when the battery is disassembled and modified (such as disassembly and replacement of cells or other internal parts). 10