RIDGID R2740 - Manual (Page 11)

11
VARIABLE SPEED CONTROL DIAL
See Figure 2.
The sander has a variable speed control dial,
A (slowest)
to F (fastest), designed to allow operator control of belt
speed. To increase belt speed, turn the variable speed
control dial to a higher setting. Turn to a lower setting to
decrease belt speed. Refer to the chart on page 10 for proper
speed selections.
PROPER HAND PLACEMENT
See Figure 3.
The front and rear handles allow two-handed operation
which aids in maintaining control, keeping sander level
with workpiece, and keeping hands clear of sanding belt.
When carrying or operating the sander always hold the front
handle with the left hand and the rear handle with the right
hand as shown.
WARNING:
Keep hands and fingers clear of moving sanding
belt, front pulley, and drive roller assembly. Failure
to do so will result in the sanding of the hands or
fingers possibly causing serious injury.
WARNING:
Do not let your fingers rest over the front or right
edge of the sander. If the sanding belt were to run
off, or if it were not properly adjusted, your fingers
could come in contact with the moving sanding
belt resulting in possible serious injury.
TURNING ON/OFF THE SANDER
See Figure 4.

To turn on the sander: Depress the switch trigger.
 To turn off the sander: Release the switch trigger.
SOFT START FEATURE
Soft start is a feature whereby the motor gradually ramps
up to the selected top speed. For example, when a speed
is selected with the speed limiting dial and the sander is
stopped and then activated again, the sander will gradually
ramp up to the previous speed setting once the switch trigger
is pressed again.
REAR
HANDLE
KEEP HANDS AND FINGERS AWAY
FROM THESE AREAS AT ALL TIMES
SWITCH
TRIGGER
VARIABLE SPEED
CONTROL DIAL
(A TO F)
OPERATION
Fig. 
Fig. 3
FRONT
HANDLE
Fig. 4