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Фрагмент инструкции
WARNING: Use of this tool can generate and/or disburse dust, which may cause serious and permanent respiratory or other injury. Always use NIOSH/OSHAapproved respiratory protection appropriate for the dust exposure. Direct particles away from face and body. Side Handle CAUTION: Always use side handle when provided and hold hammerdrill with both hands. A side handle is supplied with this hammerdrill. It clamps to the front of the gear case as shown in Figure 1 and can be rotated 360° to permit right or left hand use. Switch (Fig. 2) To start hammerdrill, depress the trigger switch (A). To stop hammerdrill, release the switch. To lock the trigger switch in the ON position for continuous operation, depress the trigger switch and push up the locking button (B). The tool will continue to run. To turn the tool OFF, from a locked ON condition, squeeze and release the trigger once. Before using the tool (each time), be sure that the locking button release mechanism is working freely. Do not lock the switch ON when drilling by hand so that you can instantly release the trigger switch if the bit binds in the hole. The locking button is for use only when the hammerdrill is mounted in a drill press stand or other wise held stationary. Be sure to release the locking mechanism before disconnecting the plug from the power supply. Failure to do so will cause the hammerdrill to start immediately the next time it is plugged in. Damage or injury could result. The variable speed trigger switch permits speed control. The farther the trigger switch is depressed, the higher the speed of the hammerdrill. NOTE: Use lower speeds for starting holes without a center punch, drilling in metal, plastics or ceramics, or driving screws. Higher speeds are better for drilling in wood and composition board and for using abrasive and polishing accessories. The reversing lever (C) is used to reverse the hammerdrill for backing out screws or jammed bits. It is located above the trigger, shown. To reverse the hammerdrill, turn it OFF and push the reversing lever to the left (when viewed from the chuck end). To position the lever for forward operation, turn the hammerdrill OFF and push the lever to the right. Hammer/Drill Selector To switch the tool from the drilling mode to the hammering mode (or vice-versa) rotate the dial on the applicable symbol shown in Figure 3. For straight drilling, align the drill bit symbol toward the chuck. For hammering, align the hammer symbol with the lever, as shown in the figure. NOTE: The selector must be in either drill, or hammer/drill mode at all times. There are no operable positions between the two. Chuck To insert bit, open chuck jaws by turning collar with fingers and insert shank of bit about 3/4" (19mm) into chuck. Tighten chuck collar by hand. Place chuck key in each of the three holes and tighten in clockwise direction. It’s important to tighten chuck with all three holes. To release bit, turn chuck key counterclockwise in just one hole, then loosen the chuck by hand. Operation DRILLING 1. Always unplug the drill when attaching or changing bits or accessories. 2. Use sharp drill bits only. For WOOD, use the twist drill bits, spade bits, power auger bits, or hole saws. For METAL, use the steel twist drill bits or hole saws. For MASONRY, such as brick, cement, cinder block, etc., use carbide-tipped bits rated for percussion drilling. 3. Be sure the material to be drilled is anchored or clamped firmly. If drilling thin material, use a wood “back-up” block to prevent damage to the material. 4. Always apply pressure in a straight line with the bit. Use enough pressure to keep drill biting, but do not push hard enough to stall the motor or deflect the bit. 5. Hold tool firmly to control the twisting action of the drill. 6. IF DRILL STALLS, it is usually because it is being overloaded or improperly used. RELEASE TRIGGER IMMEDIATELY , remove drill bit from work, and determine cause of stalling. DO NOT CLICK TRIGGER OFF AND ON IN AN ATTEMPT TO START A STALLED DRILL — THIS CAN DAMAGE THE DRILL. 7. To minimize stalling or breaking through the material, reduce pressure on drill and ease the bit through the last fractional part of the hole. 8. Keep the motor running when pulling the bit back out of a drilled hole. This will help prevent jamming. 9. With variable speed drills there is no need to center punch the point to be drilled. Use a slow speed to start the hole and accelerate by squeezing the trigger harder when the hole is deep enough to drill without the bit skipping out. DRILLING IN METAL Start drilling with slow speed and increase to full power while applying firm pressure on the tool. A smooth even flow of metal chips indicates the proper drilling rate. Use a cutting lubricant when drilling metals. The exceptions are cast iron and brass which should be drilled dry. The cutting lubricants that work best are sulphurized cutting oil or lard oil; bacon-grease will also serve the purpose. NOTE: Large (5/16” to ...