Clarke CDP151B Manual de Instruções descarregar pdf (Página 12)

2. Lever the motor, on its bracket, away from the head, by turning lever B - Fig.11,

anticlockwise so that tension is applied to the belts.

NOTE: The idler pulley will ‘float’ so that tension is equally applied to both belts

Tension is correct, when the belts deflect by approx. ½” at their centre when using

reasonable thumb pressure.

Lock the motor in this position using the two Locking Screws (A - Fig. 11).

NOTE: If the belt should slip whilst drilling, adjust the belt tension.

DRILL SPEED TABLE

The table below gives the belt arrangements for given drill speeds. The diagram shows the

belts fitted to A1 and B3, giving a drill speed of 1540 RPM.

A full chart is also located on the inside of the pulley cover.

2. Changing Drill (Spindle) Speed.

Before changing the speeds, ensure the

machine is switched OFF, and disconnected

from the mains supply.

1 Undo the Belt Tension Locking Screws (A Fig.

11), one either side of the head, and turn

lever B - Fig.5 clockwise to relieve any tension

on the belts. Referring to the chart inside

the belt cover (which is duplicated below),

install the belts in the positions corresponding

to the spindle speed required.

Fig. 11

SPINDLE PULLEY MOTOR PULLEY

Spindle Motor Drill Speed Spindle Motor Drill Speed

Pulley Pulley RPM Pulley Pulley RPM

AB A B

1 4 1 180 7 1 2 970

2 4 2 250 8 2 3 1280

3 3 1 300 9 3 4 1410

4 3 2 400 10 1 3 1540

5 2 1 480 11 2 4 2270

6 4 3 580 12 1 4 2740

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

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Clarke CDP151B Manual de Instruções Página 12