TRUPER INDUSTRIAL ERGO-4590 Angle Grinder Instruction Manual

TRUPER INDUSTRIAL ERGO-4590 Angle Grinder

Product Information

The ERGO-4590 is an angle grinder with a power output of 1.3 Hp and a disc size of 4 1/2 inches. The product code for this model is 13935. It operates on a voltage of 127V and frequency of 60Hz with a current of 7A. The tool has a maximum speed of 12,000 RPM and a duty cycle of 30 minutes work per 15 minutes idle, with a maximum usage time of 3 hours per day. The product has reinforced insulation and thermal insulation on motor winding to ensure safety during use.

Product Usage Instructions

Before using the ERGO-4590 angle grinder, read the user manual thoroughly to understand the technical data, power requirements, general power tool safety warnings, safety warnings for angle grinders, parts assembly, start-up, maintenance notes, authorized service centers, and warranty policy. When using the tool, keep your work area clean and well-lit to avoid accidents. Before turning on the power tool, make sure to remove any wrench or vice attached to rotating parts of the tool to prevent personal injury. It is important to note that the build quality of the electric insulation is altered if spills or liquid gets into the tool while in use. Therefore, do not expose the tool to rain, liquids, or dampness. Additionally, when using an extension cable, verify that 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. For outdoor use, always use a grounded extension cable labeled for outdoor use to reduce the risk of electric shock. When gaining access to the terminals, make sure to disconnect all power sources before proceeding. Keep the user manual for future reference and if you need to replace the power cable, it should only be done by the manufacturer or an authorized service center to avoid the risk of electric shock or severe injury.

Technical Data

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.

WARNING Before gaining access to the terminals all power sources should be disconnected.

Power Requirements

WARNING Tools with double insulation and reinforced insulation eliminate the need of a grounded 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 specially 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 an Authorized Service Center using only identical spare parts.
  • This will ensure that the safety of the power tool is maintained.

Safety warnings for angle grinders

Select the right disc

• CAUTION
  • Never use discs with bigger diameter than the size required in the tool.
• WARNING
  • Use only discs or accessories than 12 000 RPM speeds.
• CAUTION
  • Use only discs or accessories with an orifice that fits perfectly in the tool spindle.
• CAUTION
  • Use only discs or accessories specifically designed for the chosen material.

Before operating the grinder

• Set apart some time and assess the job you are about to do. Pay attention to all the necessary cautions before starting to grind.
  • DANGER
  • Remove all the fastening wrenches from the tool. Otherwise they can shoot away causing sever injuries to the user.
  • WARNING
  • Double-check the guard. It should be perfectly fastened and in good working condition. Do not use the tool without a guard.
  • CAUTION
  • Double-check the disc. It should not be broken or cracked. Tap the disc gently with a wooden hammer and listen for a strange sound to learn if is cracked.
  • DANGER
  • Before plugging the tool, see if is in the OFF position. Otherwise the tool could start unexpectedly causing severe injuries.
  • CAUTION
  • Run the tool 30 seconds before using, to detect important vibration or any type of unusual movement. If detected, unplug the tool and take it to a  Authorized Service Center.
  • CAUTION
  • See if the disc rotates freely.
  • Do not tighten the disc. It could brake.
  • WARNING
  • • To work with small work pieces fasten with wrenches. Never use your hands to hold the piece.

While operating the grinder

• CAUTION

  • Do not start the tool when the disc is touching the work piece.

• WARNING

  • Wear safety glasses, gloves and an apron when using the tool.

• WARNI NG

  • Keep the power cable or extension in the back of the tool. Avoid accidentally damaging the cables with the disc.
  • If control of the power tool is lost, the cable may be cut or tangled and the operator’s arm or hand may be pulled toward the rotary attachment.

• WARNI NG

  • Never hold the tool by the power cable. Hold by the housing or auxiliary handle.

• CAUTIO N

  • Hold the tool by the isolated parts. The cutting tool could come into contact with hidden wiring or its own cable. Making contact with a “live” wire causes the metal parts to electrify and give an electric shock to the user.
  • Never let go of the power tool until the attachment comes to a complete stop.
  • Never hit the work surface with the disc.

• CAUTION

  • To get the best result with the grinding process, the inclination of the disc and the working surface should have an angle measuring 15° to 30°DANGER • When the disc is rotating never use the spindle lock to stop it. It is very dangerous and may cause injuries to the user.

• CAUTION

  • Do not touch the disc or the working piece after grinding. Wait for them to cool down. Never try to cool them down using water or oil.

• WARNING

  • Before checking, adjusting or changing discs, double-check the tool is not plugged in.
  • Do not use the power tool near flammable materials.
  • Do not operate the tool while it is being transported to your side.

• DANGER

  • Sparks caused when grinding may be dangerous. Use caution. Make sure sparks do not get into contact with skin or flammable substances.
  • Gradually clean the tool’s vents. The motor fan directs dust into the housing and excessive accumulation of metal dust can cause an electrical hazard.
  • Do not use accessories that require liquid refrigerants. The use of water or other liquid refrigerants can result in an electric shock.

• DAN GER KICKBACK (Sharp Recoil)

  • Kickback (sharp recoil) is a sudden reaction when a rotating wheel, backrest, brush, or other accessory gets stuck or snagged. Stalling or snagging causes rapid stalling of the rotary attachment which in turn causes the power tool to be forced uncontrollably in the direction opposite to the rotation of the attachment at the working point. An abrasive disc jams into the workpiece, the edge of the contacting disc can be pinched into the surface of the material causing the disc to stop, creating a kickback (sudden recoil). The disc may break and the fragments may jump in the direction of or away from the operator, depending on the direction of disc movement at the point of jamming.

  • Kickback can occur as a result of misuse of power tools and/or improper operating procedures or conditions and can be avoided by taking the precautions listed below:

    • Keep a firm grip on the power tool. Maintain your body and arm so that they can resist the forces of kickback.
      Always use the auxiliary handle, if provided, for maximum control over kickback or the reaction of the torsional movement of the engine during starting. The operator can control the torsional movement and the kickback forces if the appropriate precautions are taken;

    • Never place your hand near the rotating attachment.
      The accessories may kick back in your hand;

    • Do not place your body in the area where the power tool can move if kickback (sudden recoil) occurs.
      This will propel the power tool in the opposite direction of disc movement at the point of engagement or binding;

    • Take special care when working on corners, sharp edges, among others. Avoid bouncing and jamming of the attachment.
      When working corners, sharp edges, or bouncing, can cause the attachment to jam and result in loss of control of the power tool or kickback (sudden recoil) of the power tool.

• WARN ING

  • Specific safety for grinding and cutting operations with abrasives

  • Use only disc types that are recommended for the specific power tool and the specific tool holder that is designed for the selected disc. Discs that are not designed for the power tool cannot be properly protected and are unsafe;

  • The grinding surface of discs with a sunken center must be installed below the plane of the guard. An improperly installed disc may project burrs outside the plane of the guard and cannot be properly protected;

  • The guard must be securely fastened to the power tool and positioned to provide maximum safety, so that the least amount of the blade is exposed to the operator.

  • Discs should be used only for their recommended applications.
    For example: do not grind with the side of a cut-off wheel.
    Abrasive discs are used for perfect grinding. If lateral forces are applied, they can break;

  • Always use flanges in perfect condition, of the correct size according to the shape of the selected disk. A flange with the correct characteristics supports the disc, which reduces the possibility of disc rupture. The flanges for cut-off wheels can be different from the flanges for grinding wheels;

  • Do not use worn out disks from larger or higher capacity tools Disks that are designed for larger or higher capacity tools are not suitable for the increased speed that occurs in the operation of a smaller size or capacity tool and may defragment.

• WARN ING

  • Additional safety warnings for abrasive cutting operations
  • Avoid locking or applying excessive pressure to the abrasive cut-off wheel. Do not attempt to make an excessively deep cut. Applying excessive force to the disc increases the load on the power tool and the susceptibility to deformation in the cutting area and increases the possibility of kickback (sudden recoil) or blade breakage;
  • Do not place your body in line and behind the rotating disc. When the disc, at the point of operation, is aligned with your body, the possibility of a kickback (sudden recoil) can propel the spinning disc and the power tool directly against you;
  • When disc operation is interrupted or cutting stops for any reason, turn off the power tool and keep it stationary until the disc comes to a complete stop. Do not attempt to remove the blade while it is in motion, as this may cause kickback (sudden recoil ) or similar effect. Investigate and complete corrective actions to eliminate the cause of the spin interruption;
  • Do not restart the cutting operation on the workpiece. Allow the blade to reach maximum speed off the workpiece and carefully restart cutting. The abrasive cut-off disc can jam, move upwards or produce a kickback if cutting is restarted on the workpiece;
  • Support large workpieces on presses or clamping brackets to reduce the risk of the abrasive cut-off disc becoming trapped or of kickback (sudden recoil). Large pieces tend to sink under their own weight. Brackets should be placed under the workpiece near the cutting line and near the edge of the workpiece on both sides of the abrasive cut-off wheel;
  • Be careful when making a “very small cut” in walls or other blind areas or where there is no visibility of internal components. The protruding abrasive cutting disc can cut through gas or water pipes, electrical wiring, or objects that may cause kickback (sudden recoil).

Parts

Assembly

Protection Guard Assembly

• Open the clamp lever and align the protruding parts inside the guard, push the guard down until the protruding parts engage and rotate freely with the corresponding slots in the shaft cover.
• With the clamp lever open, turn the guard to the desired working position.
• Fix pushing the clamp lever.

Disc Assembly

1. Fit the inner flange onto the axis.
2. Set the disc onto the inner flange.
3. Set the outer flange onto the axis..
   • Press the axis lock into the grinder head.
4. Screw the outer flange with the lock nut wrench until securely fastened.
   DANGER The axis lock should only be used to change discs.

Auxiliary handle assembly

• For a safer operation use the auxiliary handle. Fit it into any of the three mounting orifices. Use the one that makes your job easier.

Start Up

The angle grinder is a manual power tool used to grind and cut steel, pipes, iron angles, brick, tile, stone and / or ceramic pieces; to remove burr on metal surfaces, to level and make smooth welding lines. If the tool accessory is changed it can be used to remove oxide and to polish metal surfaces and other materials. Switch

Switch On

• Connect the plug to the power inlet.
• Press the switch exactly in the pressing position (A), without releasing it, direct the pressure forward (B) and push down slightly, release the switch to remain locked.
• To stop operation, press in the pressing position (A) and then release the switch.

How to correctly hold the tool
Always hold the tool with both hands. Hold the handle with one hand and the other hand hold the auxiliary handle. Be careful not to obstruct the ventilation slots.

• Grinding:
  For better results hold the tool 15° to 30° regarding the work piece. Move forwards to backwards applying light pressure with a constant rhythm. This way the work piece does not get too hot, will not discolor and there will not be rough edges.

• Cutting:
  Do not press, tilt or oscillate the tool. Work at a moderate speed. The disc should always rotate counterclockwise since there is a risk the tool shoots out uncontrolled. To cut hard stones using a diamond cutting disc is recommended.

Useful tips

• Work placing the disc in the right position to prevent damage.
• Press the work piece applying pressure lower than the tool’s weight to prevent overload damaging the motor and the disc.
• After installing a new disc allow it to run unloaded at least one minute. If vibration occurs replace immediately.

CAUTION.

• Avoid working on wood or soft metals like lead. These materials saturate the disc very quickly making 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.
• After a prolonged use the grease on the tool head should be replaced in a Authorized Service Center.

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 periodically checked and when worn, replaced always in a Authorized Service Center.
• After replacing the carbon brushes request to inspect if the new carbon brushes can move freely in the carbon housing. Also request to run the tool 5 minutes to make even the contact with the carbon brushes and the commuter.
• Use only original spare carbons specifically designed  with the hardness and resistance adequate for each type of motor. Carbons that are out of specification could damage the motor.
• Both carbons should be changed simultaneous.
• For better results, it is recommended to use grinding and/or cutting disc to 4-1/2″

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

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 0187-8737 to get information about the nearest Service Center.

This product is guaranteed for 2 years. To make the warranty valid or purchase parts and components you must present the product in Corregidora 22, Col. Centro, Alc. Cuauhtémoc, CDMX C.P. 06060 or at the establishment where you purchased it, or at any Truper® Service Center listed in the annex to the warranty policy and/or in www.truper.com. Transportation costs resulting from compliance of this warranty will be covered by For questions or comments,
call 800-690-6990.
Made in China.
Imported by Truper S.A. de C.V.
Parque Industrial 1,
Jilotepec,
Edo. de Méx.
C.P. 54240

Stamp of the business.
Delivery date: 2 YEAR
www.truper.com

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