OPERATION
OPERATIONAL CONTROLS AND ADJUSTMENTS
START/STOP CONTROLS
The start/stop buttons are located on the front of the drill press head. To start the machine, press the start button (A) Fig. 23, and to stop the machine, press the stop button (B).
MAKE SURE THAT THE BUTTON IS IN THE “STOP” POSITION BEFORE PLUGGING IN THE POWER CORD. IN THE EVENT OF A POWER FAILURE, PUSH THE “STOP” BUTTON. AN ACCIDENTAL START- UP CAN CAUSE INJURY.
LOCKING SWITCH IN
THE “OFF” POSITION
A
B
Fig. 23
IMPORTANT: When the machine is not in use, the “STOP” button should be locked to prevent unauthorized use, using a padlock (C) Fig. 24, with 3/16″ diameter shackle.
SPINDLE SPEEDS
Nine spindle speeds of 150, 260, 300, 440, 490, 540, 1150, 1550, and 2200 RPM are available with the 20″ Drill Press. Fig. 25, illustrates which steps of the pulleys the belts must be placed to obtain the nine speeds available.
CHANGING SPINDLE SPEEDS AND BELT TENSION
DISCONNECT MACHINE FROM THE POWER SOURCE.
1.Lift up the belt and pulley guard (A) Fig. 26.
2.Loosen the two lock knobs, one of which is shown at (B) Fig. 26. The remaining lock knob is located on the opposite side of the head casting.
3.Release belt tension by moving tension lever (C) Fig. 26, forward.
4.Position the two belts (D) Fig. 26, on the desired steps of the motor, center and spindle pulleys. To raise or lower motor pulley (E) Fig. 26, use the 4mm hex wrench and loosen set screw (F), located under the pulley. After pulley is positioned,
C
Fig. 24
SPINDLE CENTER MOTOR
440
300
150
1150
540
260
2200
1550
490
Fig. 25
15