Assessments - 4, GPA: 3.3
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Facilidade de uso
Tighten the screw. Adjust the blade guide bearings (C,G) by loosening the screw (E) and rotating the bearing on the shaft (F) so that the bearings touch, but do not pinch the blade. To gain access the back bearing (G), you will need to remove the table insert and tilt the table to the right. Return table to level position. The front edge of the guide bearings (C) should be just behind the “gullets” of the saw teeth. To adjust, loosen the hex screw (D) and slide the bearing assembly into place. Tighten the hex screw (D). Fig. 23 A B DC E F G 14 ADJUSTING THE TABLE POSITIVE STOP DISCONNECT MACHINE FROM POWER SOURCE. This machine is equipped with a positive stop that allows the table to be rapidly positioned at 90 degrees to the blade after the table has been tilted. To check and adjust: 1. Place the table in the 90 degree position and lock it in place. 2. Place a square (A) Fig. 24 on the table with one end against the blade to check for 90 degrees. 3. If an adjustment is necessary, loosen the locknut (B) Fig. 25 and tighten or loosen the adjusting screw (C) until the head of the screw (C) contacts the bottom of the table when the table is 90 degrees to the blade. 4. Tighten the locknut (B). A Fig. 24 B C Fig. 25 CHANGING BLADES NOTE: This machine uses blades that are 136" in length. To change blades: DISCONNECT MACHINE FROM POWER SOURCE. 1. Turn the knobs (A and B) Fig. 26 clockwise to open both the upper and lower doors. 2. Move the Tension Lever (C) to the up position. 3. Remove the table insert (A) Fig. 27 and the table pin (B). 4. Take the blade off both the upper and lower wheels. 5. Turn the blade so that it slides out of the table through the table slot. 6. Reverse the procedure to install a new blade. 7. Adjust the blade tension, track the blade, and adjust both upper and lower blade guides and blade support bearings. A B A B C D Fig. 27 Fig. 26 15 Fig. 28A A Fig. 28 A Fig. 28 A ADJUSTING RESAW GAUGE The resaw gauge (A) attaches to the fence (Fig. 28). Slide it along the fence slot until the edge is slightly in front of the blade teeth. Use this gauge for resawing operations and for cutting warped workpieces. ADJUSTING BELT TENSION If it becomes necessary to adjust the belt tension on the machine, turn the motor release handle (A) Fig. 28A counterclockwise. Lower or raise the motor, and when adjustment is complete, tighten the motor release handle (A). DUST CHUTE Two dust chutes (A) Fig. 29 are supplied with your machine and can easily be connected to a dust collection system. The O.D. of the dust chutes is 4" in diameter. A Fig. 29 MACHINE USE Before starting the machine, insure that all adjustments are properly made and the guards are in place. Turn the upper wheel by hand to make sure that everything is correct BEFORE turning on the power. Keep the top guide within 1/8" of the work piece at all times. Do not force the material against the blade. Light pressure on the work piece will produce a smoother cut, and prevent excess friction, and heating of the blade. KEEP THE SAW BLADE SHARP. Very little forward pressure is required for normal cutting. Keep the workpiece moving at a slow and consistent rate against the blade to ensure a smooth and accurate cut. Avoid twisting the blade, by trying not to turn sharp corners. Remember, you must saw around corners. CUTTING CURVES When cutting curves, turn the stock carefully so that the blade follows without twisting. If a curve is so abrupt that it is necessary to repeatedly back up and cut a new kerf, a narrower blade, a blade with more set, or additional relief cuts may be necessary to allow the blade to cut more efficiently. The more set a blade has, the easier it will allow the stock to be turned, but the cut is usually rougher. When withdrawing the piece being cut, changing the cut, or for any other reason, be careful not to accidentally draw the blade off the wheels. In most cases, it is easier and safer to turn the stock and saw out through the waste material, rather than try to withdraw the stock from the blade. 16 BAND SAW BLADES A band saw blade is a delicate piece of steel that is subjected to tremendous strain. You can obtain long use from a band saw blade if you use it properly. Be sure you use blades of the proper thickness, width and temper for the various types of material and cuts. Always use the widest blade possible. Use narrow blades only for sawing small, abrupt curves and for fine, delicate work. This will save blades and will produce better cuts. For cutting wood and similar materials, Delta offers blades in 1 widths of 5/8", 3/4", 1", and 1/4" for 136” length blades. Any one of a number of conditions may cause a band saw blade to break. Blade breakage is, in some cases, unavoidable, being the natural result of the peculiar stresses to which blades are subjected. Blades will break often due to avoidable causes, such as the lack of care to the blade or the blade not being properly adjusted to the band saw. The most common causes of bla...