TRUPER ESRE-1/4N Die Grinder User Manual

Manual
Die grinder
0.8 HP PowerApplies for:
Code: 16 871
Model: ESRE-1/4N
Read this manual thoroughly
before using the tool.

ESRE-1/4N Die Grinder

CAUTION
To gain the best performance of the tool, prolong the duty life, make the Warranty valid if necessary, and to avoid hazards of fatal injuries please read and understand this Manual before using the tool.
Keep this manual for future references.
The illustrations in this manual are for reference only. They might be different from the real tool.

Technical Data

Maximum 6 hours per day.
Conductors| 18 AWG x 2C with insulating temperature of 221 °F
Insulation| Class II
IP20
IP Grade

Power cord grips used in this product: Type “Y”.
Build quality: Reinforced insulation
Thermal insulation on motor winding: Class E
WARNING Avoid the risk of electric shock or severe injury. When the power cable gets damaged it should only be replaced by the manufacturer or at a Authorized Service Center.
The build quality of the electric insulation is altered if spills or liquid gets into the tool while in use.
Do not expose to rain, liquids and/or dampness.
Before gaining access to the terminals all power sources should be disconnected.
WARNING

Power Requirements

WARNING
Tools with double insulation and reinforced insulation are equipped with a polarized plug (one prong is wider than the other). This plug will only fit in the right way into a polarized outlet. If the plug cannot be introduced into the outlet, reverse the plug. If it still doesn’t fit, call a qualified electrician to install for you a polarized outlet. Do not alter the plug in any way. Both insulation types eliminate the need of both a grounded third power cord with three prongs or a grounded power connection.

WARNING
When using an extension cable, verify the gauge is enough for the power that your product needs. A lower gauge cable will cause voltage drop in the line, resulting in power loss and overheating. The following table shows the right size to use depending on cable’s length and the ampere capability shown in the tool’s nameplate. When in doubt use the next higher gauge.

• It is safe to use only if the extensions have a built-in artifact for over current protection.
  AWG = American Wire Gauge. Reference: NMX-J-195-ANCE
  WARNING
  **** When operating power tools outdoors, use a grounded extension cable labeled “For Outdoors Use”. These extensions are especially designed for operating outdoors and reduce the risk of electric shock.

General power tool safety warnings

WARNING! Read carefully all safety warnings and instructions listed below. Failure to comply with any of these warnings may result in electric shock, fire and / or severe damage. Save all warnings and instructions for future references.
Work area
Keep your work area clean, and well lit.
Cluttered and dark areas may cause accidents.
Never use the tool in explosive atmospheres, such as in the presence of flammable liquids, gases or dust.
Sparks generated by power tools may ignite the flammable material.
Keep children and bystanders at a safe distance while operating the tool.
Distractions may cause loosing control.
Electrical Safety
The tool plug must match the power outlet. Never modify the plug in any way. Do not use any adapter plugs with grounded power tools.
Modified plugs and different power outlets increase the risk of electric shock.
Avoid body contact with grounded surfaces, such as pipes, radiators, electric ranges and refrigerators.
The risk of electric shock increases if your body is grounded.
Do not expose the tool to rain or wet conditions.
Water entering into the tool increases the risk of electric shock.
Do not force the cord. Never use the cord to carry, lift or unplug the tool. Keep the cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric shock.
When operating a tool outdoors, use an extension cord suitable for outdoor use.
Using an adequate outdoor extension cord reduces the risk of electric shock.
If operating the tool in a damp location cannot be avoided, use a ground fault circuit interrupter (GFCI) protected supply.
Using a GFCI reduces the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and use common sense when operating a tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication.
A moment of distraction while operating the tool may result in personal injury.
Use personal protective equipment. Always wear eye protection.
Protective equipment such as safety glasses, anti-dust mask, non-skid shoes, hard hats and hearing protection used in the right conditions significantly reduce personal injury.

Prevent unintentional starting up. Ensure the switch is in the “OFF” position before connecting into the power source and /or battery as well as when carrying the tool.
Transporting power tools with the finger on the switch or connecting power tools with the switch in the “ON” position may cause accidents.
Remove any wrench or vice before turning the power tool on.
Wrenches or vices left attached to rotating parts of the tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times.
This enables a better control on the tool during unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothes and gloves away from the moving parts.
Loose clothes or long hair may get caught in moving parts.
If you have dust extraction and recollection devices connected onto the tool, inspect their connections and use them correctly.
Using these devices reduce dust-related risks.
Power Tools Use and Care
Do not force the tool. Use the adequate tool for your application.
The correct tool delivers a better and safer job at the rate for which it was designed.
Do not use the tool if the switch is not working properly.
Any power tool that cannot be turned ON or OFF is dangerous and should be repaired before operating.
Disconnect the tool from the power source and / or battery before making any adjustments, changing accessories or storing.
These measures reduce the risk of accidentally starting the tool.
Store tools out of the reach of children. Do not allow persons that are not familiar with the tool or its instructions to operate the tool.
Power tools are dangerous in the hands of untrained users.
Service the tool. Check the mobile parts are not misaligned or stuck. There should not be broken parts or other conditions that may affect its operation. Repair any damage before using the tool.
Most accidents are caused due to poor maintenance to the tools.
Keep the cutting accessories sharp and clean.
Cutting accessories in good working conditions are less likely to bind and are easier to control.
Use the tool, components and accessories in accordance with these instructions and the projected way to use it for the type of tool when in adequate working conditions.
Using the tool for applications different from those it was designed for, could result in a hazardous situation.
Service
Repair the tool in a Authorized Service Center using only identical spare parts.
This will ensure that the safety of the power tool is maintained.
This tool is in compliance with the Official Mexican Standard
(NOM – Norma Oficial Mexicana).

Safety warnings for grinders

This tool is designed to grind materials or deburr molded parts. Read all safety warnings, instructions, illustrations and specifications provided with this power tool.
Failure to follow the instructions outlined below may result in electric shock, fire and/or serious injury.

Kickback
CAUTION

• Kickback is the reaction caused by a rotating disc, pad or any other accessory that gets stuck or pinched. Pinching causes the rotating accessory to stop suddenly and send the tool in the opposed way. Kickback results for misuse of the tool or because of incorrect procedures or conditions. This can be prevented with the following caution measures.
• Hold the tool firmly and place your body and arm in a way they can resist the kickback force. To gain complete control over kickback or the torque reactions during start up use the auxiliary handle, if supplied with the tool. The user can control the torque reaction or the kickback force when following the necessary cautions.
• Never place the hand close to the moving accessory. The accessory can make kickback against your hand.
• Do not stand in the area into which the tool could move in case of kickback.
• Use special care when working around sharp corners, etc. Avoid bouncing the accessory. Corners, sharp edges or bouncing stop the rotating accessory and cause loosing control or kickback. It is not recommended to perform operations such as sanding, planning or cutting with this power tool.

Before operating the grinder

• Take some time to evaluate the job and double -check you are obeying all the cautions necessary before you start grinding.

• DANGER
  Remove any vice from the tool. Otherwise they can fly away causing serious injury to the user.

• CAUTION
  Verify the grinding accessory is not broken or cracked.

• DANGER
  Double-check the switch is off (see page 8) before connecting the tool. Otherwise it could start unexpectedly causing severe injury.

• CAUTION
  Start the tool 30 seconds before using to detect considerable vibrations or any kind of unusual movement. If detected disconnect the tool and take it to a ****authorized Service Center.

• WARNING
  When working with small pieces fix them with vices. Never use your hands for that purpose. Keep bystanders at a safe distance from the work area. Anyone entering the work area should wear personal protective equipment.

While operating the grinder

• CAUTION
  Do not start the too while the accessory is in contact with the work piece.

• WARNING
  Wear safety glasses, gloves and hearing protection when operating the tool.

• WARNING
  Keep the cord or the extension cord behind the tool to prevent from accidentally damage them with the accessory.

• ** WARNING**
  Never hold the tool by the power cable. Hold by the housing or auxiliary handle. If control of the power tool is lost, the cord may be cut or entangled and the operator’s arm or hand may be pulled into the rotating accessory.

• CAUTION
  Hold the tool by the insulated grabbing parts when carrying out operations where there is risk that the cutting tool makes contact with hidden wiring or its own cord. Making contact with a “live” cord will electrify the exposed parts and give an electric shock to the operator.

• CAUTION
  Never hit the work area with the accesory.

• To get better results while grinding, the inclination between the accessory and the work surface should have a 0° to 30° angle. Do not turn the power tool on while transporting it from one side to another

• CAUTION
  Do not touch both the accessory and the work piece immediately after grinding. Wait for them to cool down to handle. Do nit try to cool them using water or oil. Use of water or other liquid coolants may result in electric shock or electrocution.

• WARNING
  Double-check the tool is disconnected before checking, adjusting or changing accessory.

• **DANGER**
  Sparks caused by grinding may be dangerous if adequate measures are not observed. Verify they do not make contact with the skin or flammable substances.

• Use only manufacturer’s recommended stones.

• Sanding, grinding, polishing, brushing or cutting operations to be performed with this power tool are not recommended. Operations for which this power tool was not designed may result in an accident and cause personal injury.

• Do not use accessories that are not specifically designed and recommended by the power tool manufacturer. The fact that the accessory can be installed on the power tool does not ensure safe operation.

• The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool.

• Accessories running faster than their rated speed may break and become detached.

• The outside diameter and spray of accessories must be within the rated capacity of the power tool.

• Incorrectly sized accessories cannot be protected or controlled.

While operating the grinder

• DANGER
  Do not use a damaged accessory.
  Before each use, inspect the accessories, for example: If the power tool or an accessory is dropped, inspect for possible damage or install an undamaged accessory. After inspecting and installing an accessory, stand clear and keep persons present away from the work area of the rotating accessory, operate the power tool at full speed with no load for one minute. Accessories with damage will generally break during this time period.

• Clean the tool vents regularly, the motor fan directs dust into the housing and excessive accumulation of metal dust can cause an electrical hazard.

• Do not install a wood saw disk or serrated blade. Such blades create frequent kickback and loss of control.

Parts

Preparation

Assembly and dissassembly of accessories (not included)
CAUTION

• Always make sure the tool is turned off and unplugged before doing any work on it.

• Loosen the clamp nut.

• Insert the shank (A) of the accessory into the hole in the jaw (B).

• Using one of the included wrenches, hold the axis in place (C).

• Meanwhile, using the other wrench, turn the collet in a clockwise direction (D) to tighten the accessory.

• To loosen and remove the accessory turn the collet counterclockwise.

• **CAUTION**
  Once the accessory is set, run the grinder with no load for at least one minute. In case of vibration change the accessory immediately.

• The attachment (E) tang must not protrude more than 5/16 ” of the collet, overcome this distance may cause vibration.

• CAUTION
  For best results USE STONES with 1/4″ shank and diameters from ¾” to 1 3/8”. It is recommended to use Truper mounted stones such as: JMP-10, JPM-7, JPM-5. General Purpose Mounted Stones and JPM-5X High Performance Stones.

Start Up

The grinder is a manual power tool. It is used to grind metal, bricks, tiles, stone and/or ceramic pieces, with no need to use water. It is used to remove burr from metal surfaces. To level and smooth down in welding.
With a different accessory the tool can be used to remove oxide and polish metal surfaces and other materials.
Start Up

• Continuous operation.
• Slide the switch towards the front of the tool and push the front of the switch down.
• To stop the operation, push the rear of the switch and release it.

Speed control

• To adjust the grinder speed, turn the speed control into the desired level.
• Choose between the 6 speeds available: From 1, the lowest (11 300 RPM) up to 6, the highest (30 000 RPM).
• CAUTION
  The motor will overheat if the tool is continuously operated at low speed.

How to hold the tool correctly

• Always hold the tool with both hands. One hand should be holding the axis collar and the other on the tool body. Use care not to obstruct the ventilation slots.
• Turn on the tool without the attachment coming into contact with the workpiece and wait until the accessory reaches full speed before starting the work.
• For better results hold the tool from 0° to 30° regarding the work piece. Move from left to right applying light pressure at a constant rhythm. This way the work piece will not overheat, will not fade and there will be no edges.
• Apply light pressure to start the operation and only touch a small area of the workpiece. Then increase the pressure little by little.

Useful tips

• Work with the accessory in the right position to prevent damages.
• Press on the work piece using a weight lower to the tool’s to prevent overheating damaging the motor and accessory.
• After fitting a new accessory leave it running for one minute with no load. If it vibrates, replace it immediately.
• CAUTION
  Avoid working with soft wood or metal like lead. These materials saturate the accessory very fast and make it useless.

Maintenance

• Always disconnect the tool before cleaning.
• Never use water or other liquids. Use only a brush.
• To prevent the motor to overheat clean the ventilation slots regularly.
• Check all the tool components are perfectly fixed.
• The housing should not be cracked or damaged.
• Double-check the power cable is not cut or peeled.

Repairs
Use only spare parts and accessories recommended by the manufacturer. In the event the tool is not working, repairs should be performed in a **Authorized Service Center
Carbon brush replacement**

• Carbon brushes should be checked periodically and when worn is replaced always in a ****Authorized Service Center.
• After being replaced, ask to inspect if the new carbons can move freely in the carbon housing. Ask to run the tool 5 minutes to make even the contact between carbons and commuter.
• Use only original ****spare carbon brushes, designed specifically with the right strength and electric resistance for each type of motor. Carbon brushes with different specifications may damage the motor.
• When changing carbons always change both pieces.

Storage
Neatly store the tool in a dry place and protected from dust and water .

Notes

……………

Authorized Service Centers

In the event of any problem contacting a Truper Authorized Service Center, please see our webpage www.truper.com to get an updated list, or call our toll-free numbers 800 690-6990 or 800 018-7873 to get information about the nearest Service Center.

AGUASCALIENTES| DE TODO PARA LA CONSTRUCCIÓN
GRAL. BARRAGÁN #1201, COL. GREMIAL, C.P. 20030,
AGUASCALIENTES, AGS. TEL.: 449 994 0537
---|---
BAJA CALIFORNIA| SUCURSAL TIJUANA
AV. LA ENCANTADA, LOTE #5, PARQUE INDUSTRIAL EL
FLORIDO II, C.P 22244, TIJUANA, B.C.
TEL.: 664 969 5100
BAJA CALIFORNIA SUR| FIX FERRETERÍAS
FELIPE ÁNGELES ESQ. RUIZ CORTÍNEZ S/N, COL. PUEBLO
NUEVO, C.P. 23670, CD. CONSTITUCIÓN, B.C.S.
TEL.: 613 132 1115
CAMPECHE| TORNILLERÍA Y FERRETERÍA AAA
AV. ÁLVARO OBREGÓN #324, COL. ESPERANZA
C.P. 24080 CAMPECHE, CAMP. TEL.: 981 815 2808
CHIAPAS| FIX FERRETERÍAS
AV. CENTRAL SUR #27, COL. CENTRO, C.P. 30700,
TAPACHULA, CHIS. TEL.: 962 118 4083
CHIHUAHUA| SUCURSAL CHIHUAHUA
AV. SILVESTRE TERRAZAS #128-11, PARQUE INDUSTRIAL
BAFAR, CARRETERA MÉXICO CUAUHTÉMOC, C.P. 31415,
CHIHUAHUA, CHIH. TEL.  614 434 0052
CIUDAD DE MÉXICO| SUCURSAL TORREÓN
CALLE METAL MECÁNICA #280, PARQUE INDUSTRIAL
ORIENTE, C.P. 27278, TORREÓN, COAH.
TEL.: 871 209 68 23
COAHUILA| BOMBAS Y MOTORES BYMTESA DE MANZANILLO
BLVD. MIGUEL DE LA MADRID #190, COL. 16 DE
SEPTIEMBRE, C.P. 28239, MANZANILLO, COL.
TEL.: 314 332 1986 / 332 8013
COLIMA| TORNILLOS ÁGUILA, S.A. DE C.V.
MAZURIO #200, COL. LUIS ECHEVERRÍA, DURANGO,
DGO.TEL.: 618 817 1946 / 618 818 2844
DURANGO| SUCURSAL CENTRO JILOTEPEC
PARQUE INDUSTRIAL # 1, COL. PARQUE INDUSTRIAL
JILOTEPEC, JILOTEPEC, EDO. DE MÉX. C.P. 54257
TEL: 761 782 9101 EXT. 5728 Y 5102
GUANAJUATO| CÍA. FERRETERA NUEVO MUNDO S.A. DE C.V.
AV. MÉXICO – JAPÓN #225, CD. INDUSTRIAL,  C.P. 38010,
CELAYA, GTO. TEL.: 461 617 7578 / 79 / 80 / 88
GUERRERO| CENTRO DE SERVICIO ECLIPSE
CALLE PRINCIPAL MZ.1 LT. 1, COL. SANTA FE,  C.P. 39010,
CHILPANCINGO, GRO. TEL.: 747 478 5793
HIDALGO| FERREPRECIOS S.A. DE C.V.
LIBERTAD ORIENTE #304 LOCAL 30, INTERIOR DE PASAJE
ROBLEDO, COL. CENTRO, C.P. 43600, TULANCINGO,
HGO. TEL.: 775 753 6615 / 775 753 6616
JALISCO| SUCURSAL GUADALAJARA
AV. ADOLFO B. HORN # 6800, COL: SANTA CRUZ DEL
VALLE, C.P.: 45655, TLAJOMULCO DE ZUÑIGA, JAL.
TEL.: 33 3606 5285 AL 90
MICHOACÁN| FIX FERRETERÍAS
AV. PASEO DE LA REPÚBLICA #3140-A, COL.
EX-HACIENDA DE LA HUERTA, C.P. 58050, MORELIA,
MICH. TEL.: 443 334 6858
MORELOS| FIX FERRETERÍAS
CAPITÁN ANZURES #95, ESQ. JOSÉ PERDIZ, COL.
CENTRO, C.P. 62740, CUAUTLA, MOR.
TEL.: 735 352 8931
NAYARIT| HERRAMIENTAS DE TEPIC
MAZATLAN #117, COL. CENTRO, C.P. 63000, TEPIC, NAY.
TEL.: 311 258 0540
NUEVO LEÓN| SUCURSAL MONTERREY
CARRETERA LAREDO #300, 1B MONTERREY PARKS,
COLONIA PUERTA DE ANÁHUAC, C.P. 66052, ESCOBEDO,
NUEVO LEÓN, TEL.: 81 8352 8791 / 81 8352 8790
OAXACA| FIX FERRETERÍAS
AV. 20 DE NOVIEMBRE #910, COL. CENTRO, C.P. 68300,
TUXTEPEC, OAX. TEL.: 287 106 3092
PUEBLA| SUCURSAL PUEBLA
AV PERIFÉRICO #2-A, SAN LORENZO ALMECATLA,
C.P. 72710, CUAUTLACINGO, PUE.
TEL.: 222 282 8282 / 84 / 85 / 86
QUERÉTARO| ARU HERRAMIENTAS S.A DE C.V.
AV. PUERTO DE VERACRUZ #110, COL. RANCHO DE
ENMEDIO, C.P. 76842, SAN JUAN DEL RÍO, QRO.
TEL.: 427 268 4544
QUINTANA ROO| FIX FERRETERÍAS
CARRETERA FEDERAL MZ. 46 LT. 3 LOCAL 2, COL EJIDAL,
C.P. 77710 PLAYA DEL CARMEN, Q.R.
TEL.: 984 267 3140
SAN LUIS POTOSÍ| SUCURSAL CULIACÁN
AV. JESÚS KUMATE SUR #4301, COL. HACIENDA DE LA
MORA, C.P. 80143, CULIACÁN, SIN.
TEL.: 667 173 9139 / 173 8400
SINALOA| SUCURSAL CULIACÁN
AV. JESÚS KUMATE SUR #4301, COL. HACIENDA DE LA
MORA, C.P. 80143, CULIACÁN, SIN.
TEL.: 667 173 9139 / 173 8400
SONORA| FIX FERRETERÍAS
CALLE 5 DE FEBRERO #517, SUR LT. 25 MZ. 10, COL.
CENTRO, C.P. 85000, CD. OBREGÓN, SON.
TEL.: 644 413 2392
TABASCO| SUCURSAL VILLAHERMOSA
CALLE HELIO LOTES 1, 2 Y 3 MZ. #1, COL. INDUSTRIAL,
2A ETAPA, C.P. 86010, VILLAHERMOSA, TAB.
TEL.: 993 353 7244
TAMAULIPAS| VM ORINGS Y REFACCIONES
CALLE ROSITA #527 ENTRE 20 DE NOVIEMBRE Y GRAL.
RODRÍGUEZ, FRACC. REYNOSA, C.P. 88780,  REYNOSA,
TAMS. TEL.: 899 926 7552
TLAXCALA| SERVICIOS Y HERRAMIENTAS INDUSTRIALES
PABLO SIDAR #132, COL . BARRIO DE SAN BARTOLOMÉ,
C.P. 90970, SAN PABLO DEL MONTE, TLAX.
TEL.: 222 271 7502
VERACRUZ| LA CASA DISTRIBUIDORA TRUPER
BLVD. PRIMAVERA. ESQ. HORTENSIA S/N, COL.
PRIMAVERA  C.P. 93308, POZA RICA, VER.
TEL.: 782 823 8100 / 826 8484
YUCATÁN| SUCURSAL MÉRIDA
CALLE 33 #600 Y 602, LOCALIDAD ITZINCAB Y MULSAY,
MPIO. UMÁN, C.P. 97390, MÉRIDA, YUC.
TEL.: 999 912 2451

Warranty policy

Code: 16 871
Model: ESRE-1/4N
Brand:
Warranty. Duration: 5 year. Coverage: parts, components and workmanship against manufacturing or operating defects, except if used under conditions other than normal; when it was not operated in accordance with the instructive; was altered or repaired by personnel not authorized by Truper® . To make the warranty valid, only present the product in the establishment where you bought it or in Corregidora 22, Centro, Cuauhtémoc, CDMX, 06060, where you can also purchase parts, components, consumables and accessories. The costs of transportation of the product that derive from its fulfillment of its service network are included. Truper® will not require any proof of purchase to make the warranty effective. Phone number 800-018-7873. Made in China. Imported by Truper, S.A. de C.V. Parque Industrial 1, Parque Industrial Jilotepec, Jilotepec, Edo. de Méx. C.P. 54257, Phone number 761 782 9100.
Stamp of the business:
Delivery date:

www.truper.com
01-2023

Documents / Resources

| TRUPER ESRE-1/4N Die Grinder [pdf] User Manual
ESRE-1 4N Die Grinder, ESRE-1 4N, Die Grinder, Grinder
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