Delta 70-200 OPERATING CONTROLS AND ADJUSTMENTS

OPERATING CONTROLS AND ADJUSTMENTS

Fig. 23

START/STOP SWITCH

The switch is 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).

LOCKING SWITCH IN

THE “OFF” POSITION

IMPORTANT:When the machine is not in use, the

switch should be locked in the “OFF” position using a

padlock (C) Fig. 24, (with 3/16 diameter shackle)

through the two holes in the switch plate, as shown in

Fig. 24. NOTE: Padlock shown is available as accessory

Model 50-325.

Fig. 24

Fig. 25

Fig. 26

CHANGING SPINDLE

SPEEDS AND ADJUSTING

BELT TENSION

1. DISCONNECT THE DRILL PRESS FROM THE

POWER SOURCE.

2. Lift up the belt and pulley guard (A) Fig. 26.

3. 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.

4. Release belt tension by moving tension lever (C)

Fig. 26, forward.

5. Position the two belts (D) Fig. 26, on the desired

steps of the motor, center and spindle pulleys.

6. After the belts (D) Fig. 26, are positioned on the

desired steps of the motor, center and spindle pulleys,

move tension lever (C) to the rear until the belts (D) are

properly tensioned and tighten the two tension lock

knobs (B). The belts (D) should be just tight enough to

prevent slipping. Excessive tension will reduce the life of

the belts, pulleys and bearings. Correct tension is

obtained when the belts (D) can be flexed about 1 out

of line midway between the pulleys using light finger

pressure.

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 avail-

able.

SPINDLE CENTER MOTOR

440

300

150

1150

540

260

2200

1550

490