23.12.4 Scroll Saw Scroll saws are maintained like other machines. Be sure to: • Select the proper blade guide for the blade being used. It guides the blade and prevents tooth damage. • Set the tension sleeve or rear-tension device as described earlier. • Check the oil level periodically in the housing under the saw table. Oil prevents wear and heat buildup. Goodheart-Willcox Publisher Figure 23-70. With practice, you can coil a band saw blade into three equal loops. A B D C Patrick A. Molzahn Figure 23-71. Safety is your first concern when sawing on stationary power machines. • Add a small amount of oil or graphite in the tension sleeve or rocker pins. This will prevent excessive wear. Some scroll saws have an air pump, hose, and nozzle. This assembly blows off chips to keep the cutting line visible while sawing. Check the airflow periodically because the pump could get damaged or the hose could be loose or broken. Safety in Action Saw Safety Review Saws are versatile tools that work best when proper attention is paid to safety. In all cases, proper clothing is important. Wear a short sleeved shirt or roll the sleeves above the elbow. Remove rings. Use proper procedures when cutting a dado, Figure 23-71A. The operator is using a push stick to control the workpiece and an auxil- iary guard is in place. The proper technique for ripping requires keeping hands away from the blade, Figure 23-71B. The guard and riving knife are in place. Using proper crosscutting proce- dure, the operator keeps hands well away from blade, Figure 23-71C. The operator uses a miter gauge to push the workpiece, has a guard in place, and stands well away from the path of any flying wood chips. Follow these and all safety guidelines as you work. Have firm footing and observe minimum distances from the point of operation. Use your sense of sight, sound, touch, and smell to detect potential problems. A B C Chapter 23 Sawing with Stationary Power Machines 407 Copyright Goodheart-Willcox Co., Inc.