FLEXIBLE LAMP
The flexible lamp operates independently of the grinder. To turn the lamp on and off, rotate switch (A) Fig. 13.
WARNING: To reduce the risk of fire, use 40 watt or less, 120 volt, reflector track type light bulb (not supplied). A standard household light bulb should not be used. The reflector track type light bulb should not extend below the lamp shade.
A
Fig. 13
STARTING AND STOPPING GRINDER
The switch (A) Fig. 14, is located on the front of the grinder. To turn the grinder “ON” move the switch to the up position. To turn the grinder “OFF” move the switch to the down position.
VARIABLE SPEED
CONTROL
The grinder is equipped with a variable speed control (B) Fig. 15. When the variable speed control knob is positioned to the furthermost left position (counter clockwise), the RPM is 2000. The rotation increases as the knob is turned clockwise. When the variable speed control knob is positioned to the furthermost right position (clockwise), the RPM is 3450.
A
Fig. 14
B
Fig. 15
GRINDING WHEELS
WARNING: THE USE OF ACCESSORIES AND ATTACHMENTS NOT RECOMMENDED BY DELTA MAY RESULT IN RISK OF INJURIES. Attachments 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 recommended 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 silicone carbide stick type dresser or the wheel dresser wrench provided with the grinder, as shown in Fig. 16. Bring the dresser forward on the tool rest until it just touches the high point on the face of the wheel and dress the wheel by moving the dresser back and forth. Repeat this operation until the face of the grinding wheel is clean and the corners of the wheels are square.
Fig. 16
8