Dewalt DWS535T Instruction Manual - Page 14
Workpiece Support Fig. 13-15
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English C. C utting off a cantilevered or overhanging piece of material from the bottom up in a vertical direction can cause kickback. The falling cut off piece can pinch the blade. D. C utting off long narrow strips (as in ripping) can cause kickback. The cut off strip can sag or twist closing the kerf and pinching the blade. E. S nagging the lower guard on a surface below the material being cut momentarily reduces operator control. The saw can lift partially out of the cut increasing the chance of blade twist. 2. IMPROPER DEPTH OF CUT SETTING ON SAW To make the most efficient cut, the blade should protrude only far enough to expose half of a tooth as shown in Figure 5. This allows the foot plate to support the blade and minimizes twisting and pinching in the material. See the section titled Cutting Depth Adjustment. 3. BLADE TWISTING (MISALIGNMENT IN CUT) A. P ushing harder to cut through a knot, a nail, or a hard grain area can cause the blade to twist. B. T rying to turn the saw in the cut (trying to get back on the marked line) can cause blade twist C. O ver-reaching or operating the saw with poor body control (out of balance), can result in twisting the blade. D. C hanging hand grip or body position while cutting can result in blade twist. E. B acking up the saw to clear blade can lead to twist. 4. MATERIALS THAT REQUIRE EXTRA ATTENTION A. Wet lumber B. Green lumber (material freshly cut or not kiln dried) C. P ressure treated lumber (material treated with preservatives or anti-rot chemicals) 5. USE OF DULL OR DIRTY BLADES Dull blades cause increased loading of the saw. To compensate, an operator will usually push harder which further loads the unit and promotes twisting of the blade in the kerf. Worn blades may also have insufficient body clearance which increases the chance of binding and increased loading. 6. LIFTING THE SAW WHEN MAKING BEVEL CUT Bevel cuts require special operator attention to proper cutting techniques - especially guidance of the saw. Both blade angle to the foot plate and greater blade surface in the material increase the chance for binding and misalignment (twist) to occur. 7. RESTARTING A CUT WITH THE BLADE TEETH JAMMED AGAINST THE MATERIAL The saw should be brought up to full operating speed before starting a cut or restarting a cut after the unit has been stopped with the blade in the kerf. Failure to do so can cause stalling and kickback. Any other conditions which could result in pinching, binding, twisting, or misalignment of the blade could cause kickback. Refer to the sections on adjustments and operation for procedures and techniques that will minimize the occurrence of kickback. Workpiece Support (Fig. 13-15) WARNING: It is fig. 13 important to support the work properly and to hold the saw firmly to prevent loss of control which could cause personal injury. Figure 13 illustrates proper hand support of the saw. Maintain a 12