Delta 20-140 Instruction Manual

INSTRUCTION MANUAL
DATED 12-8-95 PART NO. 1349487
©Delta International Machinery Corp. 1995
14" Abrasive Cut-Off Saw
(Model 20-140)
2
TABLE OF CONTENTS
ADDITIONAL SAFETY RULES FOR ABRASIVE CUT-OFF SAWS . . . . . . . . . . . . . . . . . . . . . . . . 4
UNPACKING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MOVING CUTTINGHEAD TO THE UP POSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CONNECTING SAW TO POWER SOURCE
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Motor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Grounding Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Extension Cords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OPERATING CONTROLS AND ADJUSTMENTS
On-Off Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Locking Switch In The “OFF” Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Vise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Angle Cutting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adjusting Downward Travel Of Abrasive Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wrench Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Carrying Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MAINTENANCE
Changing The Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Brush Inspection And Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3
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. Safety equipment such as guards, push sticks, hold-downs, featherboards, goggles, dust masks and hearing protection can reduce your potential for injury. But even the best guard won’t make up for poor judgment, carelessness or inattention. Always use com
­mon sense and exercise caution in the workshop. If a procedure feels dangerous, don’t try it. Figure out an alternative procedure that feels safer. REMEMBER: Your personal safety is your responsibility.
This machine was designed for certain applications only. Delta Machinery strongly recommends that this machine not be modified and/or used for any application other than that for which it was designed. If you have any questions relative to a particular applica­tion, DO NOT use the machine until you have first contacted Delta to determine if it can or should be performed on the product.
DELTA INTERNATIONAL MACHINERY CORP. MANAGER OF TECHNICAL SERVICES 246 ALPHA DRIVE PITTSBURGH, PENNSYLVANIA 15238
(IN CANADA: 644 IMPERIAL ROAD, GUELPH, ONTARIO N1H 6M7)
WARNING: FAILURE TO FOLLOW THESE RULES
MAY RESULT IN SERIOUS PERSONAL INJURY
1. FOR YOUR OWN SAFETY, READ INSTRUCTION
MANUAL BEFORE OPERATING THE TOOL. Learn the
tool’s application and limitations as well as the specific hazards peculiar to it.
2. KEEP GUARDS IN PLACE and in working order.
3. ALWAYS WEAR EYE PROTECTION.
4. GROUND ALL TOOLS. If tool is equipped with three­prong plug, it should be plugged into a three-hole electrical receptacle. If an adapter is used to accommodate a two­prong receptacle, the adapter lug must be attached to a known ground. Never remove the third prong.
5. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see that keys and adjusting wrenches are removed from tool before turning it “on.”
6. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
7. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp or wet locations, or expose them to rain. Keep work area well-lighted.
8. KEEP CHILDREN AND VISITORS AWAY. All children and visitors should be kept a safe distance from work area.
9. MAKE WORKSHOP CHILDPROOF – with padlocks, master switches, or by removing starter keys.
10. DON’T FORCE TOOL. It will do the job better and be safer at the rate for which it was designed.
11. USE RIGHT TOOL. Don’t force tool or attachment to do a job for which it was not designed.
12. WEAR PROPER APPAREL. No loose clothing, gloves, neckties, rings, bracelets, or other jewelry to get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.
13. ALWAYS USE SAFETY GLASSES. Wear safety glasses. Everyday eyeglasses only have impact resistant lenses; they are not safety glasses. Also use face or dust mask if cutting operation is dusty.
14. SECURE WORK. Use clamps or a vise to hold work when practical. It’s safer than using your hand and frees both hands to operate tool.
15. DON’T OVERREACH. Keep proper footing and bal- ance at all times.
16. MAINTAIN TOOLS IN TOP CONDITION. Keep tools sharp and clean for best and safest performance. Follow instructions for lubricating and changing accessories.
17. DISCONNECT TOOLS before servicing and when changing accessories such as blades, bits, cutters, etc.
18. USE RECOMMENDED ACCESSORIES. The use of accessories and attachments not recommended by Delta may cause hazards or risk of injury to persons.
19. REDUCE THE RISK OF UNINTENTIONAL START- ING. Make sure switch is in “OFF” position before plugging in power cord.
20. NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if the cutting tool is accidentally contacted.
21. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that is damaged should be care­fully checked to ensure that it will operate properly and perform its intended function – check for alignment of mov­ing parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.
22. DIRECTION OF FEED. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only.
23.
NEVER LEAVE TOOL RUNNING UNATTENDED. TURN
POWER OFF
. Don’t leave tool until it comes to a complete
stop.
24. DRUGS, ALCOHOL, MEDICATION. Do not operate tool while under the influence of drugs, alcohol or any medication.
25. MAKE SURE TOOL IS DISCONNECTED FROM
POWER SUPPLY
while motor is being mounted, connected or re­connected.
26. WARNING: The dust generated by certain woods and wood products can be injurious to your health. Always oper­ate machinery in well ventilated areas and provide for proper dust removal. Use wood dust collection systems whenever
4
ADDITIONAL SAFETY RULES FOR
ABRASIVE CUT-OFF SAWS
1. WARNING: Do not operate your abrasive cut-off saw until it is completely assembled and installed according to the instructions.
2. IF YOU ARE NOT thoroughly familiar with the oper­ation of abrasive cut-off saws, obtain advice from your supervisor, instructor or other qualified person.
3. WEAR safety goggles, face shield, respirator, body apron, headcovering, safety shoes, long tight-fitting sleeves and gloves.
4. USE ONLY recommended reinforced abrasive wheels with blotters.
5. TIGHTEN arbor screw and all clamps before operat- ing.
6. MAKE SURE spindle lock is disengaged before operating.
7. ALWAYS keep guards in place and working properly.
8. KEEP hands clear of cut-off wheel.
9. SECURE workpiece properly. Work should be straight and firmly clamped to avoid possible movement and pinching as the cut nears completion.
10. NEVER cut anything freehand.
11. NEVER reach behind or beneath the cut-off wheel.
12. MAKE SURE the wheel has come to a complete stop before removing or securing workpiece or changing workpiece angle.
13. MAKE SURE the inside surfaces of the wheel flanges as well as the sides of the wheel are free from any foreign matter.
14. WHEN MOUNTING the wheel, care should be taken to tighten the arbor screw only enough to hold the wheel firmly and to prevent wheel slippage. Excessive tighten­ing may result in damaging the wheel and springing the wheel flanges.
15. USE ONLY abrasive wheels rated at 3900 RPM or higher.
16. ALWAYS check the wheel for cracks or other dam- age before operation. Replace cracked or damaged wheel immediately.
17. USE ONLY wheel flanges specified for your machine.
18. MAKE SURE abrasive wheel is not contacting workpiece before switch is turned on.
19. ALLOW the motor to come up to full speed before
starting cut.
20. AFTER TURNING MACHINE ON, lower wheel lightly until it comes into contact with the workpiece and then draw wheel firmly through the cut. DO NOT allow the wheel to chatter and jump as this may cause the wheel to wear out of round, resulting in poor cutting and pos­sible broken wheels.
21. ANY material can be cut more satisfactorily when placed in position for the wheel to cut with the least arc of contact.
22. THE NUMBER of cuts per wheel, as well as the quality of cut, may vary considerably with the cutting time. Fast cuts cause the wheel to wear more rapidly but also help to reduce discoloration and burr. This is especially noticeable when cutting light gage tubing. When coming through the bottom wall, with the longer arc of contact, do not slow-up but give a vigorous pull. This keeps the metal from overheating and dragging off in a heavy burr.
23. USE the wheel guard at all times.
24. NEVER operate the machine in an area with flam- mable liquids or gases.
25. TO AVOID electric shock, do not use under damp conditions or expose to rain.
26. THIS tool is designed for ferrous metals only. DO NOT attempt to cut wood, masonry, aluminum or magne­sium with this tool.
27. AFTER installing a new wheel, never start the tool with a person in line with the wheel. ALWAYS run the tool for approximately one minute before cutting. If the wheel has an undetected crack or flaw, it could burst in less than one minute.
28. SHUT OFF power before servicing or adjusting tool.
29. SHOULD any part of your machine be missing, damaged or fail in any way, or any electrical component fail to perform properly, shut-off switch and remove plug from power supply outlet. Replace missing, damaged or failed parts before resuming operation.
30. ADDITIONAL INFORMATION regarding the safe and proper operation of this product is available from the National Safety Council, 1121 Spring Lake Drive, Itasca, IL 60143-3201 in the Accident Prevention Manual for Industrial Operation and also in the Safety Data Sheets provided by the NSC. Please also refer to the American National Standard Institute ANSI 01.1 Safety Require-ments for Woodworking Machinery and the U.S. Depart-ment of Labor OSHA 1910.213 Regulations.
5
UNPACKING
Your new 14 Abrasive Cut-Off Saw is shipped complete in one carton. Carefully unpack the saw from the ship­ping container. Fig. 2 illustrates the saw after it has been removed from the container.
MOVING CUTTINGHEAD TO THE UP POSITION
1. For shipping purposes the cuttinghead (A) Fig. 3, has been clamped in the down position by means of the holddown chain (B). To move the cuttinghead (A) to the up position, simply unhook the chain (B) from the handle housing.
2. Fig. 4 illustrates the cuttinghead in the up position.
Fig. 2
Fig. 3 Fig. 4
A
B
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