ALWAYS
maintain a distance of 1/8" or less between the grinding wheel and the tool rest. Adjust the
tool rests and spark guards as the grinding wheels decrease in size with use.
10
The flexible lamp operates independently of the grinder.
To turn the lamp on and off, rotate the switch (A) Fig. 10.
Use a suitable silicone carbide stick type dresser or the
wheel dresser provided with the grinder (Fig. 11). Bring
the dresser forward on the tool rest until it just touches
the high point on the face of the wheel. Dress the wheel
by moving the dresser back and forth. Repeat this
operation until the face of the grinding wheel is clean and
the edges are square.
The grinder is equipped with a variable speed control (B) Fig. 9. When the variable speed control knob is positioned at
the far left position (counter clockwise), the RPM is 1725.
The rotation increases when the variable speed control knob
is turned clockwise. Positioned far right, the RPM is 3450
A
Fig. 10
Fig. 11
VARIABLE SPEED CONTROL
FLEXIBLE LAMP
GRINDING WHEELS
To reduce the risk of fire, use 40 watt
or smaller, 120 volt, reflector track
type light bulb (not supplied). A stan-
dard household light bulb should not
be used. The reflector track type light
bulb should not extend below the
lamp shade.
The use of accessories and attachments not recommended by Delta may result in a risk of injury.
Grinding wheels used with this grinder should be rated for 3600 RPM or higher, 8" in diameter with a 5/8" arbor hole,
and 1" wide.
Using wheels less than 1" wide will cause vibration and could damage the machine.
Two aluminum oxide grinding wheels (36 grit and 60 grit) are supplied with your grinder. For best results, and to
maintain balance, keep the wheels properly dressed. Do not force the work against a cold wheel. The grinding wheel
should always be run for one full minute before applying a workpiece. Use only balanced wheels with your grinder.
Using balanced wheels adds years to the life of the bearings on the grinder. By eliminating the most common source
of vibration, your grinding projects will be more accurate.
DRESSING A GRINDING WHEEL
