Hitachi C12RSH User Guide - Page 60

English ⅜ The laser marker will not light up if the digital display switch is turned off. (only on C12LSH) ⅜ Do not use the main unit near equipment that generates electrical noise such as generators. Electrical noise might cause faulty readings or operation on the digital display. 13. Cutting operation (1) As shown in Fig. 21 the width of the saw blade is the width of the cut. Therefore, slide the workpiece to the right (viewed from the operator's position) when length is desired, or to the left when length is desired. If a laser marker is used, align the laser line with the left side of the saw blade, and then align the ink line with the laser line. (2) After turning on the switch and checking that the saw blade is rotating at maximum speed, slowly push down the handle while holding down the lever (A) and bring the saw blade in the vicinity of the material to be cut. (3) Once the saw blade contacts the workpiece, push the handle down gradually to cut into the workpiece. (4) After cutting the workpiece to the desired depth, turn the power tool OFF and let the saw blade stop completely before raising the handle from the workpiece to return it to the full retract position. CAUTION ⅜ For maximum dimensions for cutting, refer to "SPECIFICATIONS" table. ⅜ Increased pressure on the handle will not increase the cutting speed. On the contrary, too much pressure may result in overload of the motor and/or decreased cutting efficiency. ⅜ Confirm that the trigger switch is turned OFF and the power plug has been removed from the receptacle whenever the tool is not in use. ⅜ Always turn the power off and let the saw blade stop completely before raising the handle from the workpiece. If the handle is raised while the saw blade is still rotating, the cut-off piece may become jammed against the saw blade causing fragments to scatter about dangerously. ⅜ Every time one cutting of deep-cutting operation is finished, turn the switch off, and check that the saw blade has stopped. Then raise the handle, and return it to the full retract position. ⅜ Be absolutely sure to remove the cut material from the top of the turntable, and then proceed to the next step. ⅜ Continued cutting operation can result in overload of the motor. Touch the motor and if it's hot, stop your cutting operation once and rest for 10 minutes or so, and then restart your cutting operation. ⅜ Do not operate the head section or lift up the main unit while grasping the digital display (Fig. 1) as this could cause damage to the digital display. 14. Cutting narrow workpieces (Press cutting) Slide the hinge down to holder (A), then tighten the slide securing knob (A)/(B) (Fig. 2). Lower the handle to cut the workpiece. Using the power tool this way will permit cutting of workpieces of up to 107 mm square. 15. Cutting wide workpieces (Slide cutting) (1) Workpieces up to 107 mm high and 312 mm wide: Loosen the slide securing knob (A) (Fig. 2), grip the handle and slide the saw blade forward. Then press down on the handle and slide the saw blade back to cut the workpiece. This facilitates cutting of workpieces of up to 107 mm in height and 312 mm in width. (2) Workpieces up to 120 mm high and 260 mm wide: Workpieces of up to 120 mm in height and up to 260 mm in width can be cut in the same manner as described in paragraph 15-(1) above. CAUTION ⅜ When cutting a workpiece of 120 mm height, adjust the lower limit position of the motor head so that the gap between the lower edge of the motor head and the workpiece will be 2 to 3 mm at the lower limit position. ⅜ If the handle is pressed down with excessive or lateral force, the saw blade may vibrate during the cutting operation and cause unwanted cutting marks on the workpiece, thus reducing the quality of the cut. Accordingly, press the handle down gently and carefully. ⅜ In slide cutting, gently push the handle back (rearwards) in a single, smooth operation. Stopping the handle movement during the cut will cause unwanted cutting marks on the workpiece. WARNING ⅜ For slide cutting, follow the procedures. Forward slide cutting (toward the operator) is very dangerous because the saw blade could kick upward from the workpiece. Therefore, always slide the handle away from the operator. ⅜ Always return the carriage to the full rear position after each crosscut operation in order to reduce the risk of injury. ⅜ Never put your hand on the side handle during the cutting operation because the saw blade comes close to the side handle when the motor head is lowered. 16. Miter cutting procedures (1) Loosen the side handle and pull up the lever for angle stoppers. Then, adjust the turntable until the indicator aligns with desired setting on the miter scale (Fig. 22). (2) Re-tighten the side handle to secure the turntable in the desired position. (3) The miter scale indicates both the cutting angle on the angle scale and the gradient on the grade scale. (4) The gradient, which is the ratio of the height to the base of the triangular section to be removed, may be used for setting the miter scale instead of the cutting angle, if desired. (5) Therefore, to cut a workpiece at a grade of 2/10, set the indicator to position. NOTE ⅜ Positive stops are provided at the right and left of the 0° center setting, at 15°, 22.5°, 30° and 45° settings. Check that the miter scale and the tip of the indicator are properly aligned. ⅜ Operation of the saw with the miter scale and indicator out of alignment, or with the side handle not properly tightened, will result in poor cutting precision. 17. Miter angle fine adjustment (1) Rotate the turntable to the miter angle you need. (2) When making fine adjustments of the miter angle, turn the knob (A) while pulling up the lever (Fig. 23). NOTE Turning knob (A) clockwise, allows fine adjustment of the turntable to the right. Turning knob (A) 59