Ryobi JS451L English Manual - Page 13

OPERATION ORBITAL MOTION See Figure 8. The blade of the saw cuts in an orbital motion. This feature is adjustable and provides faster, more efficient cutting. With orbital motion the blade cuts through your work in the upstroke but does not drag across your work in the downstroke. The higher settings should be used when fast cutting in soft material is desired. The lower settings should be used when cutting materials with more resistance. The "0" setting shuts off the orbital motion. Setting "3" offers the maximum orbital motion. STRAIGHT CUT See Figures 9 - 10. A straight cut can be made by clamping a piece of wood or straight-edge to the workpiece and guiding the edge of the saw against it. Make the cut from one direction only. Don't cut halfway and complete the cut from the opposite end. You can also use an edge guide (not included) as shown in figure 10. Loosen the thumb screw and insert the end of the edge guide through the two slots in the base. Measure the distance to cut and tighten the thumb screw. Place the edge guide on the outside edge of the workpiece and cut in a straight path. WARNING: To avoid possible serious injury, keep hands and fingers from between the gear housing and saw blade clamp, and keep the guard in place. thumb screws WARNING: Excessive side pressure to the blade could result in broken blades or damage to the material being cut. ANGLE CUTTING (BEVEL CUTTING) See Figure 11. Bevel cutting angles may be adjusted from 0° to 45° right or left. Angles for cuts from 0° to 45° in 15° increments are marked on a scale on both the left and right side of the base. An arrow under the motor assembly provides an indicator at each of the above mentioned 15° increments. A protractor is recommended when accurate cuts are required.  Unplug the saw.  Unlock the base by moving the base adjustment lever forward. unlock lock base adjustment lever  Slide the base forward to release it from the 0º detent position.  Align the mark of the desired angle with the indicator arrow located on the housing.  Once the desired angle is reached, tighten the base adjustment lever by moving it back under the motor assembly. 13 - English Fig. 9 optional edge guide Fig. 10 indicator arrow SLIDE FORWARD TO ROTATE BASE scale Fig. 11