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9

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 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. 14, 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

Fig. 14

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 8" 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 silicone
carbide stick type dresser, as shown in Fig. 15. 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 oper-
ation until the face of the grinding wheel is clean and the
corners of the wheels are square.

Fig. 15

A

STICK

DRESSER

SILICON CARBIDE

GRINDING

WHEEL

TOOLREST

A

Summary of Contents for 23-840

Page 1: ...ART NO 900466 011 Copyright 2001 Delta Machinery ESPAÑOL PÁGINA 13 To learn more about DELTA MACHINERY visit our website at www deltamachinery com For Parts Service Warranty or other Assistance please call 1 800 223 7278 In Canada call 1 800 463 3582 ...

Page 2: ...veryday eyeglasses only have impact resistant lens es they are not safety glasses Also use face or dust mask if cutting operation is dusty These safety glasses must conform to ANSI Z87 1 requirements Note Approved glasses have Z87 printed or stamped on them 13 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 14 DON T ...

Page 3: ...o mount the grinding wheels onto the grinder shaft 15 STAND to one side of the wheel when turning on the power 16 AVOID awkward hand positions where a sudden slip could cause a hand to move into the grinding wheel 17 ALWAYS keep hands and fingers away from the grinding wheel 18 NEVER start the grinder with the workpiece pressed against the grinding wheel 19 DRESS the wheel on the face only Dressin...

Page 4: ...kerosene do not use acetone gasoline or lacquer thin ner for this purpose WARNING FOR YOUR OWN SAFETY DO NOT CONNECT THE GRINDER TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETELY ASSEMBLED AND YOU HAVE READ AND UNDERSTAND THE ENTIRE INSTRUCTION MANUAL Fig 1 1 Grinder and lamp 2 Eye shield frame 2 3 Eye shields 2 4 Rods for eye shields 2 5 Spark guards 2 6 Tool rest arms 2 7 Tool rests 2 1 2 3 4 ...

Page 5: ...16 Flat Washer 4 1 4 20x3 4 Carriage Head Screw 2 1 4 20 Hex Nut 2 1 4 Flat Washer 2 1 4 20x1 4 Hex Head Screw 2 5 16 18x5 8 Hex Head Screw 4 3 8 Flat Washer 4 5 16 18x3 4 Hex Head Screw 2 3 8 Lock Washer 4 5 16 Lock Washer 2 10 24x1 2 Round Head Screw 4 10 24 Hex Nut 4 ...

Page 6: ...ng wheel and the inside edge of the tool rest should always be maintained When the tool rest is posi tioned correctly tighten hardware C and F As the grinding wheel wears down to a smaller diameter re adjust the tool rest closer to the wheel Freehand grind ing without the use of a tool rest should always be done on the lower quarter of the wheel ASSEMBLING SPARK GUARDS Attach spark guard A Fig 5 t...

Page 7: ...I F J L A A A CONNECTING TOOL TO POWER SOURCE POWER CONNECTIONS A separate electrical circuit should be used for your tools 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 3 prong grounding type plugs and 3 hole receptacles which accept the tool s plug Before connecting the moto...

Page 8: ...by a qualified electri cian Improper connection of the equipment grounding con ductor can result in risk of electric shock The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment grounding con ductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor to a live terminal Check...

Page 9: ...le 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...

Page 10: ...rinder to replace the grinding wheel on the right turn the arbor nut E Fig 17 counterclockwise to loosen clockwise to tighten the arbor nut To replace the wheel on the left side of the grinder turn the arbor nut E clockwise to loosen counterclockwise to tighten the arbor nut WARNING DO NOT OVERTIGHTEN WHEEL NUTS WHEN INSTALLING GRINDING WHEELS TIGHTEN WHEEL NUT ENOUGH TO DRIVE THE WHEEL AND PREVEN...

Page 11: ...axi mum support to the piece that is being ground This is the most practical and safest position for general work As the grinding wheel wears down to a smaller diameter readjust the tool rest closer to the grinding wheel A dis tance of 1 8 or less between the grinding wheel and the edge of the tool rest should always be maintained Free hand grinding without the use of the tool rest should always b...

Page 12: ...ucts This warranty is Delta s sole warranty and sets forth the customer s exclusive remedy with respect to defec tive products all other warranties express or implied whether of merchantability fitness for purpose or otherwise are expressly disclaimed by Delta Printed in U S A PARTS SERVICE OR WARRANTY ASSISTANCE All Delta Machines and accessories are manufactured to high quality standards and are...

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