Installing Backing Pad and Sanding Discs
1. Unplug tool and place it upside down on a level
surface as shown. WARNING! Always unplug
tool before changing or removing accessories.
Remove any accessories from spindle.
2. Thread flange and nylon washer onto spindle.
Attach backing pad and sanding disc as shown.
NOTE: When installing flap disc without hub, posi-
tion flap disc nut as shown.
3. To tighten, press in the spindle lock button while
turning disc nut clockwise.
4. To remove sanding disc and backing pad, unplug
tool and reverse procedure.
Disc nut
Polypropylene
backing pad
Nylon washer
Flange
Spindle
Disc nut
Sanding disc
Phenolic
backing pad
Type 27 flange
Rubber pad
Nylon washer
Flange
Spindle
Sanding disc
Spiral
Rubber
backing pad
backing pad
Flap disc nut position
Flap disk
Flap disk
without hub
with hub
OPERATION
To reduce the risk of injury, always
WARNING
wear safety goggles or glasses
with side shields. Never grind without proper
safety equipment.
Starting and Stopping the Motor
1. To start the tool, pull the trigger.
2. To stop the tool, release the trigger.
Always hold the tool firmly with
WARNING
both hands using the handles
provided before and during use.
To reduce the risk of injury or damage to the
tool, do not use the spindle lock button to stop
the spindle while the tool is in use or is coasting
after shut-off.
Locking the Trigger (Select Models)
The lock button holds the trigger in the ON position
for continuous use.
1. To lock the trigger on, hold in the lock-on button
while pulling the trigger. Release the trigger.
2. To unlock the trigger, pull the trigger and release.
The lock-on button will pop out.
Using the Dial Speed Control
(Cat. No. 6078 only)
Cat. No. 6078 has a dial speed control and variable
speed trigger switch. The maximum speed may be
preset using the speed control dial and the speed
may be varied by the trigger switch. Speed control
dial settings range from 1 to 5. Lower numbers
correspond to lower speeds and higher numbers
correspond to higher speeds. Use the setting that
best suits the work.
To control the speed, set the dial to the desired
number. Then, pull the trigger. Increase or decrease
pressure on the trigger to vary the speed. To stop the
tool, release the trigger.
General Operation
1. If you have just installed an accessory or are
beginning a period of work, test the wheel by
letting it spin for one minute before applying it to
the workpiece. WARNING! Never use a grinding
wheel that has been dropped. Out-of-balance or
damaged accessories can mar workpiece, dam-
age the tool, and cause stress that may cause
accessory failure.
2. Use a clamp, vise or other practical means to hold
your work, freeing both hands to control the tool.
3. WARNING! Hold tool securely with both hands.
Start the tool.
4. Allow accessory to come to full speed before
beginning work.
5. Control pressure and surface contact between
accessory and workpiece. WARNING! Never
bang grinding wheel onto work.Too much pressure
causes accessory failure or slows speed.
6. When finished, turn off the tool and make sure it
comes to a complete stop before laying it down.
7