SPINDLE SPEEDS Twelve spindle speeds are available on the drill press. Fig. 23, illustrates the speeds and which steps of the pulleys the belts must be positioned to obtain the 12 speeds. Fig. 21 Fig. 22 SPINDLE CENTER MOTOR 540 360 250 1090 590 410 1820 1280 650 3000 2180 1450 Fig. 23 11 CHANGING SPINDLE SPEEDS AND ADJUSTING BELT TENSION 1. DISCONNECT THE DRILL PRESS FROM THE POWER SOURCE. 2. Raise the belt and pulley guard (A) Fig. 24. 3. Release tension on the belt by loosening lock knob (B)

When making repairs, be sure to lock the start switch in the “OFF” position. An accidental start-up can cause injury. 22. MAKE YOUR WORKSHOP CHILDPROOF WITH PADLOCKS, MASTER SWITCHES, OR BY REMOVING STARTER KEYS. The accidental start-up of a machine by a child or visitor could cause injury. 23. STAY ALERT, WATCH WHAT YOU ARE DOING, AND USE COMMON SENSE. DO NOT USE THE MACHINE WHEN YOU ARE TIRED OR UNDER THE INFLUENCE OF DRUGS, ALCOHOL, OR MEDICATION. A moment of inattention while operating power

ADJUSTING SPINDLE RETURN SPRING The spindle will automatically return to its upper-most position when the handle is released. Allow the handle to return slowly to the top position after each hole has been drilled. This spindle-return spring was adjusted at the factory. However, to adjust (if necessary): Disconnect the machine from the power source! 1. Loosen the nuts (B) and (E) Fig. 30. Make sure that the spring housing (A) stays engaged with the head casting. 2. FIRMLY HOLD the spring housing

(6) Read/write circuit The read/write circuit uses a LSI chip for the read/write preamplifier. It improves data reliability by preventing errors caused by external noise. (7) Controller circuit The controller circuit consists of an LSI chip to improve reliability. The high- speed microprocessor unit (MPU) achieves a high-performance AT controller. 2.2 System Configuration 2.2.1 ATA interface Figures 2.3 and 2.4 show the ATA interface system configuration. The drive has a 44-pin PC AT interface c

or less in diameter. The following directions will give the inexperienced operator a start on common drill press operations. Use scrap material for practice to get a feel of the machine before attempting regular work. IMPORTANT: When the workpiece is long enough, it should always be positioned on the table with one end against the column, as shown in Fig. 32. This prevents the workpiece from rotating with the drill bit or cutting tool, causing damage to the workpiece or personal injury to the op

20-950 20-950 20" Floor Model Drill Press La perceuse a colonne de 508 mm (20 po) Prensa de taladro de 508 mm (20”), modelo de apoyo sobre el suelo 223-7278 - US (800) 463-3582 - CANADA Instruction Manual Manuel d’Utilisation Manual de Instrucciones FRANCAIS (21) ESPANOL (39) A20334_12-05-06 Copyright © 2006 Delta Machinery TABLE OF CONTENTS TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS ....................2 SAFETY GUIDELINES - DEFINITIONS .....................3 GENERAL SAFETY RULES ..........

20. DIRECTION OF FEED. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only. 21. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don’t leave tool until it comes to a complete stop. 22. STAY ALERT, WATCH WHAT YOU ARE DOING, AND USE COMMON SENSE WHEN OPERATING A POWER TOOL. DO NOT USE TOOL WHILE TIRED OR UNDER THE INFLUENCE OF DRUGS, ALCOHOL, OR MEDICATION. A moment of inattention while operating power tools may result in serious personal injury. 23.

1. Insert bit into chuck. 2. Lower the chuck (C) Fig. 25, to the depth you wish the holes to be drilled. Then lock the quill in position by tightening quill locking lever (E). NOTE: Quill locking lever (E) is spring-loaded and can be repositioned by pulling out on the handle and repositioning the hub of the handle on the bolt located underneath the hub. 3. Depress spring-loaded button (F) Fig. 25, and rapidly move stop nut (A) until bottom of nut (A) contacts stop (G). Then hold the pinion shaft

If an adapter is used to accommodate a two-prong receptacle, the adapter lug must be attached to a known ground. Never remove the third prong. 5. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see that keys and adjusting wrenches are removed from tool before turning it "on." 6. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents. 7. DON'T USE IN DANGEROUS ENVIRONMENT. Don't use power tools in damp or wet locations, or expose them to rain. Keep work area well-lighted

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 pre