MasterForce 241-0818 Operating Manual & Parts List Download Page 5

EXTENSION CORDS

• The use of any extension cord will cause some drop in

voltage and loss of power.

• Wires of the extension cord must be of sufficient size to

carry the current and maintain adequate voltage.

• Use the table to determine the minimum wire size

(A.W.G.) extension cord.

• Use only 3-wire extension cords having 3-prong ground-

ing type plugs and 3-pole receptacles which accept the
tool plug.

• If the extension cord is worn, cut or damaged in any

way, replace it immediately.

EXTENSION CORD LENGTH

Wire Size

A.W.G.

Up to 25 ft.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

25 to 50 ft.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

50 to 100 ft.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

NOTE: 

Using extension cords over 100 ft. long is not rec-

ommended.

ELECTRICAL CONNECTIONS
WARNING:

All electrical connections must be performed

by a qualified electrician. Make sure tool is off and discon-
nected from power source while motor is mounted, con-
nected, reconnected or anytime wiring is inspected.

OPERATION

SPECIFIC SAFETY INSTRUCTIONS FOR BENCH
GRINDERS

The operation of any grinder can result in debris being
thrown into your eyes, which can result in severe eye dam-
age. 

ALWAYS WEAR EYE PROTECTION .

Any power tool

can throw debris during operations, which could cause
severe and permanent eye damage. Everyday eyeglasses are

NOT

safety glasses. 

ALWAYS

wear safety goggles (that

comply with ANSI standard Z87.1) when operating power
tools. Safety Goggles are available at Menard’s stores.

Basic precautions should always be followed when using
your bench grinder. To reduce the risk of injury, electrical
shock, or fire, comply with the safety rules listed below:

ALWAYS USE THE EYE SHIELDS AND WHEEL
GUARDS

provided with the grinder. 

REPLACE A CRACKED OR DAMAGED GRIND¬ING
WHEEL IMMEDIATELY.

A damaged wheel can dis-

charge debris at a high velocity towards the operator.
Carefully handle the grinding wheels since they are abra-
sive. Prior to replacing a grinding wheel, check it for
cracks. 

DO NOT

remove the blotter or label on both

sides of the grinding wheel. Tighten the spindle nut just
enough to hold the grinding wheel firmly to the bench
grinder. Do not over-tighten the nut. Excessive clamping
force can damage the grinding wheel. Only use the
wheel flanges provided with the grinder. When selecting
a replacement grinding wheel, verify that the grinding
wheel has a higher R.P.M. rating than the maximum
R.P.M. of the Bench Grinder.

THE DIAMETER OF THE GRINDING WHEELS WILL
DECREASE WITH USE.

Adjust the tool rests and spark

arrestors to maintain a distance of 

1

16

” from the wheel. 

DO NOT STAND IN FRONT OF THE BENCH
GRINDER WHEN STARTING IT.

Stand to one side of

the bench grinder and turn it “ON”. Wait at the side
until the grinder comes up to full speed. There is always
a possibility that debris from a damaged grinding wheel
may be discharged towards the operator.

THE BENCH GRINDER WILL PRODUCE SPARKS
AND DEBRIS DURING GRINDING OPERATIONS.

Be

sure that there are not any flammable materials in the
vicinity. Frequently clean grinding dust from the back of
the bench grinder.

NEVER FORCE THE WORKPIECE AGAINST A
GRINDING WHEEL

, especially if the wheel is cold.

Apply the workpiece slowly, allowing the grinding wheel
an opportunity to warm up. This will minimize the
chance of wheel breakage. 

DO NOT

grind using the

sides of the grinding wheels. 

DO NOT

apply coolant

directly to the grinding wheel.

KEEP ALL WHEEL GUARDS IN PLACE. DO NOT
USE THE BENCH GRINDER WITH THE WHEEL
GUARDS REMOVED.

KEEP THE TOOL RESTS FIRMLY TIGHTENED.

ALWAYS USE THE SUPPLIED WHEEL DRESSER TO
RESURFACE THE FACE OF THE GRINDING WHEEL.

REMOVE ADJUSTING KEYS AND WRENCHES.

Form

habit of checking to see that keys and adjusting wrench-
es are removed from tool before turning it on.

DIRECTION OF FEED.

Feed work into a blade or cutter

against the direction of rotation of the blade or cutter
only.

USE RIGHT TOOL.

Don’t force tool or attachment to do

a job for which it was not designed.

DO NOT

overtighten wheel nut.

ONLY

use flanges furnished with the grinder.

FREQUENTLY

clean grinding dust from beneath grinder.

DO NOT FORCE THE TOOL

to perform an operation

for which it was not designed. It will do a safer and
higher quality job by only performing operations for
which the tool was intended.

ADDITIONAL INFORMATION

regarding the safe and

proper operation of this product is available from:

a. Power Tool Institute 1300 Summer Avenue Cleveland,

OH 44115-2851 www.powertoolinstitute.com 

b. National Safety Council 1121 Spring Lake Drive Itasca,

IL 60143-3201 

c. American National Standards Institute 25 West 43rd

Street, 4th Floor New York, NY 10036 www.ansi.org 

d. ANSI 01.1 Safety Requirements for Woodworking

Machines and the 

e. U.S. Department of Labor regulations www.osha.gov 

SAVE THESE INSTRUCTIONS.

Refer to them frequently

and use them to instruct others.

OPERATING THE BENCH GRINDER

The Bench Grinder is designed for hand held grinding,
sharpening, and cleaning operations.

5

MASTERFORCE Operating Manual and Parts List

241-0818

Summary of Contents for 241-0818

Page 1: ...H GRINDER Read carefully and follow all safety rules and operating instructions before first use of this product 32089 07 0410 operating manual parts list 241 0818 Safety Assembly Operation Maintenanc...

Page 2: ...wer sanding sawing grinding drilling and other construction activities contains chemicals known to the state of California to cause cancer birth defects or other reproductive harm Some examples of the...

Page 3: ...ies may cause risk of injury to persons Handle the workpiece correctly ASSEMBLY Refer to Figures 2 and 3 WARNING DO NOT assemble the bench grinder until you are sure The tool IS NOT plugged in The pow...

Page 4: ...he event of a malfunction or breakdown grounding provides a path of least resistance for electrical shock WARNING Do not permit fingers to touch the terminals of plug when installing or removing from...

Page 5: ...S WILL DECREASE WITH USE Adjust the tool rests and spark arrestors to maintain a distance of 1 16 from the wheel DO NOT STAND IN FRONT OF THE BENCH GRINDER WHEN STARTING IT Stand to one side of the be...

Page 6: ...ord from its power source prior to any mainte nance LUBRICATION The bench grinder has sealed lubricated bearings in the motor housing that do not require any additional lubrication from the operator C...

Page 7: ...rasive wheel must have the cor rect outer wheel diameter and bore diameter as original wheels The label on the side of the abrasive wheel must stay on DO NOT remove this label Replace the abrasive whe...

Page 8: ...8 MASTERFORCE Operating Manual and Parts List 241 0818 NOTES...

Page 9: ...f extension cord see manual 5 Grinding wheels are blocked 1 Defective variable speed switch 2 Defective sensor 3 Defective circuit board CORRECTIVE ACTION 1 Plug power cord into electrical receptacle...

Page 10: ...29 30 31 32 35 36 43 44 47 48 49 50 5 1 52 53 54 55 56 57 58 59 60 45 46 37 38 39 40 41 13 13 1 1 9 1 1 2 2 3 4 24 25 25 25 25 25 42 21 21 17 23 6 7 7 8 8 MASTERFORCE Operating Manual and Parts List 2...

Page 11: ...ad Screw 9 26 27188 00 Support 1 27 N A Motor Assembly 1 28 27057 00 Sensor Assembly 1 29 05990 00 3 0 5 x 6mm Pan Head Screw 2 30 27056 00 Plate 1 31 28255 00 5 0 8 x 5mm Set Screw 1 Ref Part No No D...

Page 12: ...s warranty 1 excludes expendable parts including but not limited to blades brushes belts bits light bulbs and or batteries 2 shall be void if this tool is used for commercial and or rental purposes an...

Page 13: ...13 MASTERFORCE Operating Manual and Parts List 241 0818 Service Record MASTERFORCE 8 Variable Speed Bench Grinder Date Maintenance Performed Replacement Components Required...

Page 14: ...de plana 1 4 2 Tornillo de cabeza hexahonal 1 4 20 x 1 4 2 ESPECIFICACIONES Caballaje servicio continuo Voltaje 120 Amperaje 5 0 Hertzios 60 Fase Monof sica RPM 1745 3450 Rotaci n vista desde el lado...

Page 15: ...an correc tamente y hacen el trabajo que deben hacer Revise que no haya partes da adas Verifique el alineamiento de las partes m viles si hay atascamiento roturas y montaje o cualquier otra condici n...

Page 16: ...un pedestal met lico Alinee los agujeros de montaje con los agujeros correspon dientes en el pedestal Inserte un perno de cabeza hexagonal de 20 x 1 con una arandela plana a trav s de la base de la e...

Page 17: ...AS ESMERILADORAS DE BANCO El uso de cualquier esmeriladora puede expulsar escombros hacia los ojos durante las operaciones lo que puede causar da o ocular grave y permanente UTILICE PROTECCI N OCULAR...

Page 18: ...erruptor debe estar en posici n de APAGADO OFF y el interruptor de velocidad variable debe estar en la posici n de m s lenta esto se logra gir ndolo completamente a la izquierda hasta sentir el tope d...

Page 19: ...espu s de que el operario haya concluido el acabado de la rueda de esmerilado APAGUE OFF la emeriladora de banco y permita que la rueda de esmerilado se detenga por completo Inspeccione la rueda de es...

Page 20: ...d nticos entre s La Figura 7 muestra la colocaci n correcta de los espaciadores B y C AVISO Un espaciador B siempre debe ir primero sobre el eje del rbol El segundo espaciador C de ser necesario ir al...

Page 21: ...strucci n 1 Cambie el interruptor 2 Reemplace el sensor 3 Reemplace el tablero de circuito CAUSA S POSIBLE S 1 M quina desenchufada 2 Interruptor de energ a en posici n de apagado 3 Cord n de energ a...

Page 22: ...Partes de Repuesto Necesarias Mantenimiento Realizado Fecha MASTERFORCE Esmeriladora de Banco Velocidad Varialbe 8 Registro de Servicios Manual del Operador y Lista de Partes MASTERFORCE 241 0818 22...

Page 23: ...NOTAS Manual del Operador y Lista de Partes MASTERFORCE 241 0818 23...

Page 24: ...correas brocas bombillas y o bater as 2 se anular si se utiliza la herramienta para fines comerciales y o de alquiler y 3 no cubre p rdidas lesiones a personas da os a la propiedad o costos Esta gara...

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