Black & Decker 724156-01 User Manual

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“ 1

1 .KEEP GUARDS M PLACE and in working order.

2. REM0¥E adjusting KEYS AND WRENCHES. Form habit of checking to see that keys and adjusting wrenches are remov ed from tool before turning it on.

3. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.

4. 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.

5. KEEP CHILDREN AWAY. All visitors should be kept safe distance from work area.

6. MAKE WORKSHOP KID PROOF with padlocks, master switches, or by removing starter keys.

7. D0N^ FORCE TOOL. It will do the job better and safer at the

rate for which it was designed.

8. USE RIGHT TOOL. Don’t force tool or attachment to do a job

for which it was not designed.

9. ¥^EAR PROPER APPAREL. No loose clothing, neckties, rings,

bracelets, or other jewelry to get caught in moving parts. Non slip footwear is recommended. Wear protective hair covering to contain long hair.

10.ALWAYS USE SAFETY GLASSES. Also use face or dust mask if cutting operation is dusty. Everyday eyeglasses only have im pact resistant lenses, they are NOT safety glasses.

11 .DON’T OVERREACH. Keep proper footing and balance at all

times.

12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest performance. Follow instructions for lubri cating and changing accessories.

13. DISCONNECT TOOLS before servicing: when changing accessories such as blades, bits, cutters, etc.

14. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off position before plugging in.

15 USE RECOMMENDED ACCESSORIES. Consult the owner’s

manual for recommended accessories. The use of improper ac cessories may cause risk of injury to persons.

16. NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if the cutting tool is unintentionally contacted.

17. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intend ed function — check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other con ditions that may affect its operation. A guard or other part that is

damaged should be properly repaired or replaced.

18. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF.

ADDITIONAL GRINDER SAFETY RULES

1 .Always use guards and eye shields. Always wear safety glasses

or other eye protection when operating this tool and keep the eye shields mounted in their proper position on the wheel guard.

2. Replace a cracked wheel immediately. Handle grinding wheels carefully to avoid bumping or dropping. DO NOT use a grinding wheel that has been dropped. Before using, inspect each grin ding wheel for cracks or flaws and if these are evident, discard the wheel.

3. Before mounting a new wheel, be sure that it is marked with an

R.P.M. that is the same as, or higher than, the no-load speed of

the grinder as marked on the nameplate. Do not overtighten

wheel nut. Use only flanges furnished with this grinder. Keep

Tool Rests and Spark Shields adjusted.

4. Never start a grinder with anyone, including the operator,

standing in line with the wheel. After installing a replacement wheel, stand to one side and allow it to revolve freely for about

one minute.

5. Do not grind on the sides of grinding wheels unless they are the special wheels designed specifically for this purpose.

6. Do not over-tighten wheel nut.

7. Use only flanges furnished with this grinder.

8. Bolt Bench Grinder to a bench or pedestal to prevent

movement.

9. Use accessories only in the proper and intended manner.

ELECTRICAL CONNECTIONS AND GROUNDING

This tool should be grounded while in use to protect the operator from electric shock.

We recommend that you NEVER dissemble the tool or try to do

any rewiring in the electrical system. Any such repairs should be performed only by B^D Service Centers or other qualified service organizations. Should you be determined to make a repair yourself, remember that the green colored wire is the “grounding” wire. Never connect this green wire to a “live” terminal.

1. Cord-Connected Tools; In the event of a malfunction or breakdown, grounding provides a path of least resistance for elec tric current to reduce the risk of electric shock. This tool is equip ped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances. Do not modify the plug provided — if it will not fit the outlet, have the proper outlet installed by a qualified electrician, improper connection of the equipment-grounding con ductor can result in a risk of electric shock. The conductor with in sulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or replace ment of the electric cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal. Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if in doubt as the whether the tool is properly grounded. Use only 3-wire extension cords that have 3prong grounding plugs and 3-pole receptacles that accept the tool’s

plug. Repair or replace damaged or worn cord immediately. 1 A. Grounded, cord-connected tools intended for use on a supply

circuit having a nominal rating less than 150 volts, ihis tool is in tended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A. The tool has a grounding plug that looks like the plug illustrated in Sketch A. A temporary adapter, which looks like the adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-pole receptacle as shown in Sketch B if a

properly grounded outlet is not available. The temporary adapter should be used only until a property grounded outlet can be install ed by a qualified electrician. The green-colored rigid ear, lug, etc. extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box. Adapter shown in Sketches B and C is Not for Use in Canada.

1B. Grounded, cord-connected tools intended for use on a supply circuit having a nominal rating between 150-250 volts, inclusive: This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch D. The tool has a grounding plug that looks like the plug illustrated in Sketch D. Make sure the tool is connected to an outlet having the same configuration as the plug. No adapter is available or should be used with this tool. If the tool must be reconnected for use on a different type of electric circuit,

the reconnection should be made by qualified service personnel; and after reconnection, the tool should comply with all local codes and ordinances.

GROUNDED OUTLET BOX

ADAPTER

GROUNDED

OUTLET BOX

2. Permanently connected tools: This tool should be connected to a grounded, metal, permanent wiring system; or to a system having an equipment-grounding conductor.

MOTOR

Your Bench Grinder is equipped with a B&D built induction Motor. Specifications are as follows:

Cat.

Size

No. 1 Phase

4305

4310,

4315

7" 4320,

4321

&" 4325 1

4326

H.P.

1 1/4

1/3 5.0/4.4 Amps. 50/60 3000/3600

1/3

3/4

3/4 2.4/2.3 Amps.'*

Rated

at 120 V

5.3/5.1 Am ps. 50/60 3000/3600

5.0/4.4 Am ps.

10.0/9.75 Amps. 50/60

Cycles

50/60 3000/3600

50/60

' at 220 Volts t Reconneciable for either voltage

Bench Grinder motors require more current when starting than is required for normal running. Because of this, it is possible to blow an otherwise adequate fuse when first starting the grinder. To avoid this, it is advisable to use a cart

ridge type ‘‘Fusetron’’ fuse rather than step up to a higher capacity fuse. This will prevent blowing fuses but still provide the necessary overload protection. 3 Phase units must be connected to the power supply to provide the correct direction of rotation (clockwise viewed from left side).

R.P.M.

(no-load)

3000/3600 120, 220 A.C.

3000/3600

Voltage

120, 220 A.C.

220, 440 A.C.t

EXTENSION CORDn Phase Units

When using the tool at a considerable distance from power source, a 3-connector, grounding-type extension cord of ade

quate size must be used for safety and to prevent loss to power and over-heating. Use the table below to determine the minimum wire size required.

Use only three wire extension cords which have three-prong grounding-type plugs and three-pole receptacles which ac

cept the tool’s plug. Replace or repair damaged or worn cord

immediately.

Ampere rating

(on nameplate)

Ext. Cable length

25 ft. 50 ft. 16

75ft.

100 ft.

150ft,

200 ft.

2.10to 3.5to

Oto

2.0

16 16 14 14

14 14

3.4 Wire Size (A.W.G.)

18 16 16 16 16 14

5.10to

5.0

18 18

16 14 12

12 12 12

7.10tO

7.0

12.0

16 14

—

— —

12.1 to

16.0

14 12 10

.—

ASSEMBLING 6" BENCH GRINDER NO. 4305

RUBBER

EYE SHIELDS & SPARK SHIELDS

continued

WHEEL GUARD SPARK SHIELD

To attach Eye Shield, use same bolt that holds Spark Shield on Bench Grinder Wheel Guard.

TOOL RESTS

Tool Rests are adjustable for wheel wear. Keep them ad

justed so that a clearance of 1/16" is maintained between the

wheel and the tool rest, i his clearance Is very important as it

will prevent a piece of any consequence, which could break

off the item being ground, from jamming between the wheel

and the tool rest. Such jamming could fracture the wheel,

break the tool rest, or both.

BENCH MOUNTING continued

FRONT OF BENCH

8" BENCH GRINDERS (Figure 4): Two 1/4"-28 bolts, two 1/4" flat washers, and two 1 /4" lock washers are required (not supplied). Bolt length should be approximately the thickness of the bench top plus 1 inch.

Figure 4 shows the location of the required mounting holes in the bench.

CHANGING WHEELS

Grinding Wheels

1. Remove wheel guard covers.

2. Remove clamp nut by turning it in the same direction as the wheel turns. (Figure 5).

3. Remove wheel and both clamp washers. Inspect washers.

If they are burred or not perfectly flat, repair or replace

them.

4. When installing the new grinding wheel, always use blotters

between the wheel and each washer. Contact surfaces of

wheels, blotters and washers must be clean and flat.

5. Always use the exact type of washers that are supplied with your tool. Never substitute flat or odd sized washers.

6. Only tighten arbor nut sufficiently to drive the wheel wihout slippage.

7. Be sure to replace guard end covers, and adjust spark shields, tool rests and eye shields before operating tool. (Figs. 1 & 2).

8. After installing replacement wheel, put on safety goggles and stand to the side of the grinder, turn switch “ON” and allow wheel to revolve freely for one minute before be ginning to grind.

Wire Wheel Brushes

1. FOLLOW STEPS 1, 2 & 3 under “Grinding Wheels” above. Use the two arbor adaptors included with the brush, and the two clamp washers on the Bench Grinder.

2. Protect your hands with gloves or a rag when handling Wire Wheels.

3. FOLLOW STEPS 5, 6 & 7 under “Grinding Wheels”,

Spark Shields should be attached to the tops of the wheel guards with included Vz" long self-tapping screws. Keep shields adjusted so that there is 1/16" clearance between the shields and the grinding wheel or wire wheel brush.

The Wheel Guard Covers are installed with two screws and lockwashers. Nuts to accommodate the screws are embedded in the grinder housing.

Place the Plastic Eyeshield In the circular notches on either side of the grinder housing. Attach rubber washer, small steel flat washer and knob. The shield can be raised from its normal position to accommodate unusually shaped pieces to

be worked on.

Use Notched Tool Rest with the grinding wheel on left side of grinder. Use Unnotched Tool Rest with wire brush on right side of grinder. The tool rests slide in and out to adjust for wheel wear. They also swivel at right angles to the wheel for convenience in angle grinding. The tool rest should be ad justed so that there is 1/16" clearance between it and the grinding wheel or wire brush.

EYE SHIELDS & SPARK SHIELDS

Bench Grinders have Spark Shields which are mounted at the

front of the wheel guards (Figure 1). As the grinding wheel

wears down, the Shield should be kept adjusted so that the

clearance between the wheel and the Shield is approximately

1/16".

BENCH MOUNTING

Bench Grinders should be solidly attached to the bench for safer and more efficient operation.

6'^ (NO. 4305) BENCH GRINDER (Figure 3A): To prevent movement of

the grinder when pressure

Is applied against a wheel, attach grinder to bench with two 1/4" bolts. Drill

holes through bench at

locations shown in Figure 3A. Insert bolt heads into slots “A” in bottom of grinder and slide bolts outward. Feed bolts through holes in bench

and fasten each bolt with two nuts to keep bolts

from loosening during operation. Tighten bolts only enough

to compress rubber feet about 1/16" to keep feet effective in absorbing vibration.

6" and 7" (NOS. 4310, 4315) BENCH GRINDERS (Figure 3B): Two 1/4"-20 or 1/4"-28 square head bolts, two 1 /4" nuts, two 1/4" flat washers, and two 1 /4" lockwashers are required (not supplied). Bolt length should be approximately the thick ness of the bench top plus 1 Inch.

Figure 3B shows the location of the required mounting holes in the bench.

DISTANCE “A” — To suit user’s application. DISTANCE “B” — Approximately 4" for 1/4" set-back from

front edge of bench. Place bolt heads in slots through base of Bench Grinder and

lower bolts through holes in bench. Attach washers and nuts

and tighten securely. (Continued next column)

-4:

__________

¡^CENTER

Figure 3A

DISTANCE “A” — 1 0 suit user’s application. DISTANCE “B” — Approximately 4-1/2" for 1/4" set-back

from front edge of bench. Place Bench Grinder on bench and insert bolts with washers

up from underneath bench top. Line up bolts with tapped

holes in bottom of Bench Grinder and tighten securely.

CHANGING WHEELS

With 6" & 7" Bench Grinders, UNPLUG POWER CORD AND

BE SURE THAT SWITCH REMAINS IN THE “OFF” POSITION.

With 8" Bench Grinders, which are permanently wired to the

power source, disconnect the power source at the disconnect switch, fuse panel or circuit breaker panel.

Figure 5

-CLAMP WASHERS-

6" & 7" GRINDERS

NOTE: Each grinding wheel purchased should be equipped with a blotter fastened to each side of the wheel. Blotters must always be used between the wheel and the inner and

outer clamp washers.

^clamp washers

WHEEL

(5/8" ARBOR)

8" GRINDERS

Cotton Buffing Wheels

1. FOLLOW STEPS 1, 2 & 3 under “Grinding Wheels” above, install wheel with a clamp washer on each side of wheel and tighten nut sufficiently to keep wheel from slipping.

Attach guard end covers.

2. Put on safety goggles before starting any buffing opera tions.

GRINDING INSTRUCTIONS

Put on safety goggles and hold the work firmly. Rest the work on the tool rest and feed it slowly into the wheel at the de sired grinding angle. Treat the wheel with respect . . . do not jam the work into the wheel or use unnecessary pressure. Grind only on the face of the wheel, unless you have a special wheel specifically made to permit grinding on the side of the wheel.

When grinding tempered tools such as chisels and knives, keep a container of cutting fluid or water nearby. During the grinding operation, frequently dip the top part of the work Into the liquid to avoid overheating and losing the temper. In fact, all metals can be ground more efficiently if they are “quenched” in this manner to avoid overheating which can soften or “burn” the metal.

WIRE BRUSHING INSTRUCTIONS

Wire Brushes are used to remove rust, scale and old paint.

Do not jam work into wheel. Hold work firmly while brushing. Always wear safety goggles for protection against particles thrown from brush and work piece.

BUFFING INSTRUCTIONS

Use Cotton Buffing Wheels, normally with stick buffing com pound applied to the face of the wheel (usually about 5/8" wide). Wear safety goggles for protection against particles of compound thrown off by the wheel. Do not jam work into wheel. Hold work firmly.

LUBRICATION

No periodic lubrication of the Bench Grinder is required.