Porter-Cable 70-200 Operational Controls and Adjustments START/STOP Controls, Spindle Speeds

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, re-tighten set screw (F).

C

Fig. 24

SPINDLE CENTER MOTOR

440

300

150

1150

540

260

2200

1550

490

Fig. 25

15