valutazioni - 2, GPA: 4
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17, located in the machine base. Fig. 17 OPERATING CONTROLS AND ADJUSTMENTS STARTING AND STOPPING DRILL PRESS The switch (A) Fig. 18, is located on the front of the drillpress head. To turn the drill press “ON” move the switch up to the “ON” position. To turn the drill press “OFF” move the switch down to the “OFF” position. 10 R Q Fig. 15 S T Fig. 16 A A Fig. 18 LOCKING SWITCH IN THE “OFF” POSITION IMPORTANT: When the machine is not in use, the switchshould be locked in the “OFF” position to preventunauthorized use. This can be done by grasping theswitch toggle (B) and pulling it out of the switch, asshown in Fig. 19. With the switch toggle (B) removed, theswitch will not operate. However, should the switchtoggle be removed while the drill press is operating, theswitch can be turned “ O F F ” once, but cannot be restarted without inserting the switch toggle (B). FLEXIBLE LAMP The flexible lamp operates independently of the drillpress. To turn the lamp “ON” and “OFF”, rotate switch (A) Fig. 19A. To reduce the risk of fire, use 40 watt or less, 120 volt, reflector track type light bulb (not supplied). A standard household light bulb should not be used. Thereflector track type light bulb should not extend below thelamp shade. B Fig. 19 A Fig. 19A TABLE ADJUSTMENTS 1. The table can be raised or lowered on the drill presscolumn by loosening the table clamp (A) Fig. 20, andturning the table raising and lowering handle (B) Fig. 21. After the table is at the desired height, tighten clamp (A) Fig. 20. NOTE: Final positioning of the drill press tableshould always be from the bottom to the up position. 2. The table can be rotated 360 degrees on the columnby loosening clamp (A) Fig. 20, rotate table to desiredposition and tighten clamp (A). A Fig. 20 B Fig. 21 11 C D E C D E D C Fig. 22 3. The table can be tilted right or left by pulling out andremoving table alignment pin (C) Fig. 22. NOTE: If pin (C) is difficult to remove, turn nut (E) clockwise to pull pinout of casting. 4. Fig. 23, illustrates the table alignment pin (C) removed. Loosen table locking bolt (D), tilt table to thedesired angle and tighten bolt (D). When returning tableto the level position, replace table alignment pin (C). Thiswill position the table surface at 90 degrees to thespindle. 5. A tilt scale (E) Fig. 24, is provided on the tablebracket casting to indicate the degree of tilt. A witnessline and zero mark (F) are also provided on the table toline up with the scale (E). SPINDLE SPEEDS Five spindle speeds of 620, 1100, 1720, 2340 and 3100R P M are available with your drill press. Fig. 25, illustrateswhich step on the motor and spindle pulleys the belt mustbe placed on to obtain the five speeds available. CHANGING SPEEDS AND ADJUSTING BELT TENSION 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Lift up the belt and pulley guard (A) Fig. 26. 3. Release belt tension by loosening tension lock knob (B) Fig. 26, and pivoting the motor (D) toward the front ofthe drill press. 4. While holding the motor toward the front of the drillpress, position the belt (C) on the desired steps of themotor and spindle pulleys, as shown in Fig. 26. F E SPINDLE MOTOR 3100 2340 1720 1100 620 Fig. 23 Fig. 24 Fig. 25 A B C D Fig. 26 12 5. After the belt is positioned on the desired steps of themotor and spindle pulleys, move motor (D) Fig. 26, to therear until the belt is properly tensioned and tightentension lock knob (B). The belt should be just tightenough to prevent slipping. Excessive tension will reduce the life of the belt, pulleys and bearings. Correcttension is obtained when the belt (C) can be flexed about1" out of line midway between the pulleys using lightfinger pressure. DRILLING HOLES TO DEPTH Where a number of holes are to be drilled to exactly thesame depth, a depth stop is provided in the pinion shafthousing and is used as follows: 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Insert bit into chuck. 3. Lower the spindle until the pointer (C) Fig. 27, linesup with the mark on the scale (D) you wish the depth ofthe holes to be drilled. Then tighten lock screw (A). Return the spindle to the up position. 4. Place the material to be drilled on the drill presstable. Raise the drill press table until the material to bedrilled just touches the drill bit. 5. Drill a test hole to check the adjustment and readjustif necessary. All holes will then be drilled to the exactdepth as indicated on scale (D) Fig. 27. NOTE: Scale (D) is calibrated in both inches and millimeters. ADJUSTING SPINDLE RETURN SPRING The spindle is automatically returned to its upper mostposition when the handle is released. It is recommendedthat the handle be allowed to slowly return to the topposition after each hole has been drilled in the material. This spring has been properly adjusted at the factory andshould not be disturbed unless absolutely necessary. Toadjust the return spring, proceed as follows: 1. DISCONNECT MACHINE FROM POWER SOURCE. 2 . Loosen nuts (B) and (E) Fig. 28. Make sure springhous...
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