User manual MAKITA HP2071

[. . . ] Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool. Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released. Switch can be locked in "ON" position for ease of operator comfort during extended use. Tool speed is increased by increasing pressure on the switch trigger. [. . . ] ) Place the wrench 19, adjustable wrench or one of other appropriate wrenches on the hexagonal nut at the front of the drill chuck. Two speed ranges can be preselected with the speed change knob. To change the speed, turn the speed change knob so that the arrow on the tool body points toward the " I " position on the knob for low speed or " II " position for high speed. If it is hard to turn the knob, first turn the chuck slightly in either direction and then turn the knob again. cAUTION: · Use the speed change knob only after the tool comes to a complete stop. Changing the tool speed before the tool stops may damage the tool. Always set the speed change knob to the correct position. If you operate the tool with the speed change knob positioned halfway between the " I " and " II " position, the tool may be damaged. The depth gauge cannot be used at the position where the depth gauge strikes against the tool body. For rotation only, slide the action mode change lever to the left (m symbol). cAUTION: · Always slide the action mode change lever all the way to your desired mode position. If you operate the tool with the lever positioned halfway between the mode symbols, the tool may be damaged. There is a tremendous and sudden twisting force exerted on the tool/bit at the time of hole breakthrough, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete. Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations. , move the action mode changing lever to the position of g symbol to use "rotation with hammering" action. Be sure to use a tungsten-carbide tipped bit. Keep the tool in position and prevent it from slipping away from the hole. Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed. Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. The green power-ON indicator lamp lights up when the tool is switched ON. [. . . ] Regularly clean the tool's air vents or whenever the vents start to become obstructed. To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized Service Centers, always using Makita replacement parts. These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. [. . . ]