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HomeMy WebLinkAbout306.033 - Operating Procedure for the Skil Saw TRAINING AND EQUIPMENT MANUAL RESCUE EQUIPMENT 306.033 OPERATING PROCEDURES FOR THE SKIL SAW EFFECTIVE: APRIL 2018 Current Revision Date: 8/8/19 Next Revision Date: 8/8/24 Author’s Name/Rank: Connor Manning, Firefighter Review Level: 1 Administrative Support Leslie Oulashian, Management Analyst II PURPOSE The purpose of this policy is to provide Fresno Fire Department (FFD or Department) members instruction on the operational principals and technical data necessary to properly operate the Skil Saw. APPLICATION The Skil Saw is used to cut through lightweight lumber. OPERATIONAL POLICY All appropriate personal protective equipment (PPE) shall be worn whenever working with the Skil Saw. OPERATIONAL GUIDELINE This section intentionally left blank. PROCESS 1. Attaching the Blade: a. Press the lock button and turn the wrench until the lock button engages. The saw shaft is now locked. Continue to depress the lock button, turn the wrench clockwise, and remove the blade stud and outer washer. (See Figure 1.) b. Retract the lower guard all the way up into the upper guard. While retracting the lower guard, check the operation and condition of the lower guard spring. Section 306.033 Page 1 of 8 c. Make sure the saw teeth and arrow on the blade point in the same direction as the arrow on the lower guard. d. Slide the blade through the slot in the foot and mount it against the inner washer on the shaft. Ensure the large diameter of the inner and outer washers lay flush against the blade. e. Reinstall the outer washer; tighten the blade stud (finger tight) and then using the wrench provided, tighten the blade stud 1/8 turn more or an additional 45°. Figure 1 Note: Disconnect the plug from the power source before making any assembly, adjustments, or changing accessories. These preventive safety measures reduce the risk of starting the tool accidentally. Do not use wrenches with longer handles which may lead to over tightening of the blade stud. Section 306.033 Page 2 of 8 2. Depth Adjustment: a. Disconnect the plug from the power source. b. Loosen the depth adjustment lever located between the guard and the handle of saw. c. Hold the foot down with one hand and raise or lower the saw by the handle. Tighten the lever at the depth setting desired. Check desired depth. 3. 90-Degree Cutting Angle Check: a. Disconnect the plug from power source. b. Set the foot to maximum the depth of the cut setting. Loosen the bevel adjustment lever. Set to 0°on the quadrant. Retighten the bevel adjustment lever first, then the depth adjustment lever and check for 90°angle between the blade and bottom plane of foot with a square. (See Figure 2.) Figure 1 Section 306.033 Page 3 of 8 4. Bevel Adjustment: a. Disconnect the plug from power source. b. The foot can be adjusted up to 45° by loosening the bevel adjustment lever at the front of the saw. (See Figure 3.) c. Align to desired angle on the calibrated quadrant. d. Tighten the bevel adjustment first; then tighten the depth adjustment lever. Note: Because of the increased amount of blade engagement in the work and decreased stability of the foot, blade binding may occur. Keep the saw steady and the foot firmly on the work piece. Figure 2 Section 306.033 Page 4 of 8 5. Line Guide: For a straight 90° cut, use the large notch in the foot. For 45° bevel cuts, use the small notch. (See Figure 4.) The cutting guide notch will give an approximate line of cut. Make sample cuts in scrap lumber to verify actual line of cut. This will be helpful because of the number of different blade types and thicknesses available. To ensure minimum splintering on the good side of the material to be cut, face the good side down. 6. Switch: a. When starting the tool, hold it with both hands. The torque from the motor can cause the tool to twist. b. To turn tool on, squeeze the trigger switch. c. To turn the tool off, release the trigger switch. This switch is spring loaded and will return to the off position automatically. d. The saw should be running at full speed before starting a cut, and turned off only after completing the cut. To increase switch life, do not turn the switch on and off while cutting. Figure 3 Section 306.033 Page 5 of 8 7. General Cuts: a. Always hold the saw handle with one hand and the auxiliary handle or housing with the other hand. b. Always be sure either hand does not interfere with the free movement of the lower guard. c. Maintain a firm grip and operate the switch with a decisive action. d. Never force the saw. Use light and continuous pressure. e. When cutting across the grain, the fibers of the wood have a tendency to tear and lift. Advancing the saw slowly minimizes this effect. For a finished cut, a cross-cut blade or miter blade is recommended. 8. Pocket Cuts: a. Disconnect the plug from the power source before making any adjustments. b. Set the depth adjustment according to material to be cut. c. Tilt the saw forward with cutting guide notch lined up with the line you have drawn. (See Figure 5.) d. Raise the lower guard using the lift lever, and hold the saw by the front and rear handles. e. With the blade just clearing the material to be cut, start the motor. f. Gradually lower the back end of the saw using the front end of the foot as the hinge point. g. As the blade starts to cut the material, release the lower guard immediately. When the foot rests flat on the surface being cut, proceed with cutting in a forward direction to the end of cut. h. Allow the blade to come to a complete stop before lifting the saw from the cut. Never pull the saw backward since the blade may climb out of the material causing the saw to kickback. Section 306.033 Page 6 of 8 i. Turn the saw around and finish the cut in the normal manner, sawing forward. If the corners of the pocket cut are not completely cut through, use a jigsaw or hand saw to finish the corners. INFORMATION 1. Specifications: Blade 7-1/4 Inches Blade Arbor Hole Diamond Depth of Cut at 90 Degrees 2-3/8” Depth of Cut at 45 Degrees 1-15/16” For detailed specifications, visit the following link: o https://www.skilsaw.com/product- details?product=SPT77W -22 Figure 4 Section 306.033 Page 7 of 8 DEFINITIONS This section intentionally left blank. CROSS REFERENCES No cross references recognized. Section 306.033 Page 8 of 8