9
Fig. 12
A
FLEXIBLE LAMP
The flexible lamp operates independently of the grinder.
To turn the lamp on and off, rotate switch (A) Fig. 12.
WARNING: To reduce the risk of fire, use 50 watt or
less, 120 volt, reflector track type light bulb (not sup-
plied). A standard household light bulb should not be
used. The reflector track type light bulb should not
extend below the lamp shade.
Fig. 13
STARTING AND
STOPPING GRINDER
The switch (A) Fig. 13, is located on the front of the
grinder. To turn the grinder “ON” push the left hand por-
tion of the switch and to turn the grinder “OFF” push the
right hand portion of the switch.
GRINDING WHEELS
WARNING: THE USE OF ACCESSORIES AND ATTACHMENTS NOT RECOMMENDED BY DELTA MAY RESULT
IN RISK OF INJURIES. Grinding wheels used with this grinder should be rated for 3600 RPM or higher and be 6" in
diameter with a 1/2" arbor hole.
Two aluminum oxide grinding wheels are supplied with your grinder; one 36 grit and one 60 grit. For best grinding
results, and to maintain good balance, always keep the wheels properly dressed. Do not force the work against a cold
wheel. The grinding wheel should always be run at idle speed for one full minute before applying work. It is recom-
mended that only balanced wheels be used with your grinder. The use of balanced wheels adds years to the life of the
bearings on the grinder and by eliminating the most common source of vibration, more accurate work is accomplished.
DRESSING A
GRINDING WHEEL
When dressing a grinding wheel use a suitable silicon
carbide stick type dresser, as shown in Fig. 14. Bring the
dresser forward on the tool rest until it just touches the
high point of the face of the wheel and dress the wheel
by moving the dresser back and forth. Repeat this oper-
ation until the face of the wheel is clean and the corners
of the wheel are square.
Fig. 14
SILICON
CARBIDE
TOOL
REST
GRINDING
WHEEL
STICK
DRESSER
A
CHANGING GRINDING
WHEELS
CAUTION: DISCONNECT MACHINE FROM POWER
SOURCE BEFORE CHANGING GRINDING WHEELS.
1. When changing wheels, remove the screws attach-
ing the side covers to the grinder and remove the side
covers.
2. To prevent shaft rotation, place a wedge between
the grinding wheel and the tool rest. NOTE: Facing the
front of the grinder: to replace the wheel on the left side,
turn the arbor nut clockwise to loosen; counterclockwise
to tighten the arbor nut.
3. To replace the grinding wheel on the right, turn the
arbor nut, counterclockwise to loosen; clockwise to
tighten the arbor nut.
4. The arbor bushing should be saved, for future use, if
the replacement wheel does not use the bushing.
WARNING: DO NOT OVERTIGHTEN WHEEL NUTS
WHEN INSTALLING GRINDING WHEELS. TIGHTEN
WHEEL NUT ENOUGH TO DRIVE THE WHEEL AND
PREVENT SLIPPAGE.
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