Makita HR4013C Owners Manual - Page 8

014135 Make sure the toothed side of the depth gauge faces the marking. Adjust the depth gauge by moving it back and forth while pressing the lock button. After adjustment, release the lock button to lock the depth gauge. NOTE: • The depth gauge cannot be used at the position where the depth gauge strikes against the gear housing/motor housing. OPERATION CAUTION: • Make sure the work material is secured and not unstable. Flown object may cause personal injury. • Do not pull the tool out forcibly even the bit gets stuck. Loss of control may cause injury. Hammer drilling operation CAUTION: • 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, and maintain good balance and safe footing. Failure to do so may result in the loss of control of the tool and potentially severe injury. Blow-out bulb (optional accessory) 1. Blow-out bulb 1 002449 After drilling the hole, use the blow-out bulb to clean the dust out of the hole. Chipping/Scaling/Demolition 014030 Set the change lever to the symbol. Position the bit at the desired location for the hole, then pull the switch trigger. Do not force the tool. Light pressure gives best results. 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 you can continue drilling operation. 014031 Set the change lever to the or symbol. Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool does not bounce around, uncontrolled. Pressing very hard on the tool will not increase the efficiency. MAINTENANCE CAUTION: • Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. • Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result. 8