OPERATION - SPINDLE SPEED - GEAR SELECTOR
The speed of the motor on the PB70 can be controlled by
changing the gear ratio selector (J) to position I or II.
The gear selector is located on either side of the drill unit
gearbox when viewed from the front.
Gear Selection
To change the gear ratio, consult the chart on the right or
the speed label on the machine, locate the gear selector on
the side of the motor gearbox. Press the selector in against
the spring, slide up or down to choose the appropriate
speed.
The selector has two positions I = Down and II = Up
The selector may have one or two triangular symbols as
shown in the diagram to the right.