(Model GR250) PART NO. 905595 - 05-03-02 Copyright © 2002 Delta Machinery To learn more about DELTA MACHINERY visit our website at: www.deltamachinery.com. For Parts, Service, Warranty or other Assistance, please call ESPAÑOL: PÁGINA 13 1-800-223-7278 (In Canada call 1-800-463-3582).
GENERAL SAFETY RULES Woodworking can be dangerous if safe and proper operating procedures are not followed. As with all machinery, there are certain hazards involved with the operation of the product. Using the machine with respect and caution will considerably lessen the possibility of personal injury. However, if normal safety precautions are overlooked or ignored, personal injury to the operator may result.
ADDITIONAL SAFETY RULES FOR GRINDERS WARNING: FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY. 15. NEVER GRIND NEAR FLAMMABLE GAS OR LIQUIDS. Sparks can create a fire or an explosion. 1. DO NOT OPERATE THIS MACHINE until it is assembled and installed according to the instructions. 16. AVOID AWKWARD OPERATIONS AND HAND POSITIONS where a sudden slip could cause a hand to move into the grinding wheel. 2.
POWER CONNECTIONS A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3prong grounding type plugs and matching receptacle which will accept the machine’s plug.
EXTENSION CORDS Use proper extension cords. Make sure your extension cord is in good condition and is a 3-wire extension cord which has a 3-prong grounding type plug and matching receptacle which will accept the machine’s plug. When using an extension cord, be sure to use one heavy enough to carry the current of the machine. An undersized cord will cause a drop in line voltage, resulting in loss of power and overheating. Fig. D, shows the correct gauge to use depending on the cord length.
GRINDER PARTS 1 10 18 17 12 11 15 14 13 6 5 7 8 4 3 Fig. 2 1. 2. 3. 4. 5. 6. 7. 8. 9. Grinder 1/4-20x1/4" hex head screw (2) 5/16-18x5/8" hex head screw (4) Eye shield bolt (2) 5/16-18x3/4" knob (2) Eye shield knob (2) Eye shield spacer (2) 5/16" flat washer (6) 1/4" flat washer (4) 10. 11. 12. 13. 14. 15. 16. 17. 18.
ASSEMBLY WARNING: FOR YOUR OWN SAFETY, DO NOT CONNECT THE TOOL TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETELY ASSEMBLED AND YOU READ AND UNDERSTAND THE ENTIRE INSTRUCTION MANUAL. TOOL RESTS C 1. Assemble left tool rest (A) Fig. 3, to left tool rest arm (B), as shown, and fasten with one 5/16-18x3/4" knob (C) and 5/16" flat washer (D). Assemble the remaining tool rest in the same manner. Do not completely tighten hardware at this time. A 2. Assemble left tool rest assembly (D) Fig.
2. Align the holes in the eye shield with the holes in the spark guard and place the eye shield spacer (A) Fig. 7, in the space in the spark guard as shown. A Fig. 7 D C 3. Insert the eye shield bolt (A) Fig. 8, through the hole in the eye shield (B), eye shield spacer (C), and spark guard (D). E F A 4. Place a 1/4" flat washer (E) Fig. 8, onto the end of the eye shield bolt and fasten the eye shield knob (F) to the end of the eye shield bolt. B 5. Assemble the other eye shield in the same manner.
VARIABLE SPEED CONTROL The grinder is equipped with a variable speed control (B) Fig. 10. 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. FLEXIBLE LAMP A The flexible lamp operates independently of the grinder. To turn the lamp on and off, rotate switch (A) Fig.
CHANGING GRINDING WHEELS 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. When changing wheels, remove the screws attaching the side covers to the grinder and remove the side covers. 3. 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 of the grinder, turn the arbor nut clockwise to loosen; counterclockwise to tighten the arbor nut. 4.
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ACCESSORIES A complete line of accessories is available from your Delta Supplier, Porter-Cable • Delta Factory Service Centers, and Delta Authorized Service Stations. Please visit our Web Site www.deltamachinery.com for a catalog or for the name of your nearest supplier. WARNING: Since accessories other than those offered by Delta have not been tested with this product, use of such accessories could be hazardous. For safest operation, only Delta recommended accessories should be used with this product.