TRUPER EBA-5 Bench Grinder User Manual

TRUPER EBA-5 Bench Grinder User Manual

  Read this manual thoroughly before using the tool.

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

Power Cord Grips used in this product: Type “Y” Tool Build Quality: Basic Insulation
Thermal insulation on motor winding: Class B

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.

Power Requirements

**** If faults or breakdowns happen. Ground connection offers a trajectory with minimum resistance for electric power. It reduces the risk of electric shock. This tool is built with a power cable with an earth conductor and ground connection. The plug shall be connected into a power outlet installed and grounded according to all local codes.

When using an extension cord, 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 cord´s length and the ampere capability shown in the tool’s nameplate. When in doubt use the next higher gauge.

**** When operating power tools outdoors, use a VOLTECH grounded extension cable labeled “For Outdoors Use”. These extensions are specially designed for operating outdoors and reduce the risk of electric shock.

**** General Safety Warnings for Power Tools

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.

Safety Warnings for the Use of Bench Grinders

Choose the Right Grinding Wheel

• Never try to use wheels with diameters bigger than the size appropriate for the tool.
• **** Never use wheels that are damaged or in bad repair. Otherwise they could break and get thrown out towards the operator.
• ****Use wheels or accessories only for 3 450 RPM speeds or higher.
• Use only wheels or accessories with an orifice matching the tool axis.
• Use only wheels or accessories specific for the material to be used.

Before Operating the Bench Grinder

• Spare some time to assess the work to be made. Double check you take all the necessary cautions before starting to grind.
• Plan ahead the way to hold the work piece. Avoid positions which could make you lose control over your hands. If there is a sudden slip the hand could make contact with the moving disc.
• Remove all the wrenches from the tool. Otherwise the wrenches may be shot with great force causing severe injuries to the operator.
• ****Double check the disc guard is in good repair and correctly fastened. The tool shall not be used without the guard.
• ****Verify the disc is not broken or cracked. Hit lightly the disc with a wood hammer. The sound will tell you if it’s cracked. Replace immediately a broken disc before operating the tool.
• Double check the switch is OFF before connecting the tool. Otherwise it will run unexpectedly causing severe injuries.
•   Turn on the tool 30 seconds before using to detect considerable vibrations or any type of unusual movement. If detected, disconnect the tool and go to a Authorized Service Center.
• Verify the disc runs freely. Do not tighten the disc too much. Otherwise it could break.
• Top work with small work pieces fix them with clamps or vices. Never use your hands to hold pieces.

While Operating the Bench Grinder

• Keep your fingers in a safe distance away from the grinding disc.
• Do not start the tool when the disc is making contact with the work piece.
• **** Wear safety eyeglasses, gloves and apron when operating the tool.
• **** Keep the cable or extension cable behind the tool to prevent accidentally damage the cable with the disc.
• Do not touch the disc or the work piece immediately after grinding. Manipulate them only when cooled down. Do not try to cool down the disc or piece using water or oil.
• **** Verify the tool is disconnected before checking, adjusting or replacing the disc.
• Sparks coming out from grinding can be dangerous if adequate measures are not taken. Double check sparks do not come into contact with skin or flammable substances.
• Do not stretch over the machine to overreach. Use a safe posture and always keep good footing.
• The feed direction of the work piece shall be directed against the disc rotation.
• Prevent damages due to jamming, sliding or movement of the work piece. Make sure all the vices and locks are tight and that no part has excessive movement.
• If a small piece gets stuck inside the guard turn off the machine immediately, disconnect from the power outlet and wait until all the mobile parts stop completely before trying to remove the stuck piece.

Parts

Assembly

• Mount the tool on a bench or work table. Fix the base with bolts (not included)..
• The place you determine to set the tool shall be perfectly leveled and with enough space around it to adequately handle and support the work piece.

Mount the Accessories

• To mount switch the tool Off and unplug it.
• The tool accessories are needed to gain an efficient and safe operation. Do not run the tool when there are accessories not installed.
• The tool includes accessories for both wheels (left and right). The illustration shows the mounting right side of the tool. Repeat the same procedure to mount the left side wheel.
• Take your time to examine all the accessories before mounting to prevent fixing them in the wrong side of the machine.
• For a safe operation, the edges of the tool rest (A) as well as the edges of the spark arrester guards (B) need to be adjusted 1/16” away from the grinding wheel.
• The smaller screws and washer kits are needed to fix the spark arrester guards (B).
• To adjust the eye proctors (C) in their mounting rods, loosen and tighten the hex screws placed in the rear face or the eye protectors (D). Loosen enough to be able to freely adjust with your hand, but not too much to allow keeping it in place after releasing. Always position the eye protector between your eyes and the grinding wheel.

Start Up

Turning On

To turn on the tool press the switch on the “ON” side.
To stop the tool, press the switch on the “OFF” side.
Wait a few seconds for the engine to reach its rated speed before operating.

Operation

• Use moderate and constant pressure on the work piece. Use uniform movements to get a soft grind. If you use excessive pressure the motor will overheat and the grinding wheel will wear out faster.
• Locate the bevel angle in the piece to hone and try to keep its shape.
• The disc shall turn against the object to be honed.
• Keep a tray with water handy to immerse regularly there the work piece to prevent overheating. Otherwise, the metal may weaken.

Maintenance

Grinding Wheels Replacement

• Replace wheels only with other wheels with a speed range at least as high as the r/min indicated on the machine label and with a 1/2” axis orifice.
• The disc diameter shall be 5″ and the maximum thickness 5/8”.
• Double check the new wheels have no cracks and keep the sequence of both.
• Remove the wheel guard loosening and removing its three screws (A).
• Using a tool hold the wheel firmly to prevent it from moving (B) and loosen the axis nut.  The right-hand disc nut gets loose turning in a counterclockwise direction and the left-hand side disc nut (C) is loosened turning in a clockwise direction.
• Remove the outer flange (D) and the wheel to be replaced (E).
• To set correctly, set the new wheel onto the axis (F) and repeat the described steps in a reverse manner.
• The tool can be set with most of the polishing and buffing wheels available in the market with a maximum diameter of 5″.
• **** Using any different accessory is not advisable and can cause severe injury.

Grinding Wheel Care

• Due to usage the wheel may crack, striate, get round-edged, chip, get unbalanced or get stuck with material. If the wheels show cracks, they must be replaced immediately. The other conditions can be fixed with a honing tool (available in most of the hardware stores).
• New wheels may need to be honed again to round them off.

Authorized Service Centers

In the event of any problem contacting a 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.

Warranty policy

www.truper.com

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