TRUPER LIBA-3X21A2 Belt Sander User Manual

TRUPER LIBA-3X21A2 Belt Sander User Manual

CAUTION

To gain the best performance of the tool, prolong the duty life, make the Warranty valid if necessary, and to avoid hazards
or fatal injuries please read and understand this Manual before using the tool.

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.
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 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.

Ampere Capacity
Number of Conductors
Extension gauge
from 5.9’ to 49.2’  |      higher than 49.2’ from 0 A and up to 10 A from 10 A and up to 13 A from 13 A and up to 15 A from 15 A and up to 20 A 3 (one grounded)

18 AWG(*) 16 AWG 14 AWG 8 AWG 16 AWG 14 AWG 12 AWG 6 AWG

• 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

Safety warnings for belt sanders

Cautions with dust and residues

CAUTION ** • Observe the applicable regulations when sanding painted surfaces. Use special care when the paint is lead-based.
To have a safe work environment remove dust and any other When possible use a vacuum cleaner or a dust recollection extractor.
CAUTION • Everybody within the work area shall wear professional breathing devices to be protected against dust and smoke generated when sanding.
Do not use this tool to sand pieces containing
CAUTION • Wear  brand professional breathing devices and cartridges suitable for working with paint dust and vapors. Regular painting masks do not offer that type of protection.
WARNING** • Children and pregnant women shall not enter the work area. Wear adequate clothing

WARNING ** • Wear adequate clothes. Lose clothes, jewelry or long hair could get caught in the moving parts. Caution with electric shock
WARNING** • Hold the tool by the isolated grabbing surfaces. The belt could make contact with its own power cord. Making contact with a power conducting cable makes the metallic parts in the tool will also be charged with power and send an electric shock to the operator.

Parts

Start Up

Sanding belt fitting

1. Pull the belt tension lever until it
2. Use the belt with the required grain and set it straight and centered around the Double check the arrow in the inner side of the belt is pointing the same direction as the sander’s arrow.
3. Push the lever until is back to its original
4. Start the sander to make the sanding belt While the tool is in operation, but, with no contact with any surface, turn the aligning knob until the belt is continuously running in a straight way.

CAUTION The sanding belt should be tightly adjusted to the sander base. It shall not be loose or weak.

Turning on and operation

• Intermittent operation: Connect the plug to the power Press switch ( A ) to run the sander. To stop it, just release the switch.
• Continuous operation: Connect the plug to the power Press switch ( A ) and block it by pressing the continuous use button ( B ). To stop it, press and then release the switch.
  

Speed control

Adjust the sanding belt speed using the speed control ( C ), regarding the job to be

Start Up Sanding Start U Metal finish

• To prevent striation of the piece start sanding with the sander running.
• Keep the sander moving to get a smooth and even
• Sanding consists in a backward and forward Most of the job is made with the traction movement.
• Do not force the tool against the work The sander’s own weight generates enough pressure to make a good job. Too much pressure will tear the sander’s grain, diminishing the sanding efficiency.
• Sand slowly and
• When you stop, raise the sander from the work piece before turning it
• To work on ferrous metal, like steel, stainless steel, iron, , use rough or fine grain belts, regarding the desired finish. Non-ferrous metal such as aluminum, tin-plate soldering, brass, bronze, etc., can also be sanded.
• To minimize the load and prolong the belts’ working time use some lubricant for sanding, polishing, or for satin finish of metals. Just rub the lubricant onto the belt every now and Also, you can use SAE No. 10 or 20 lubricant oil to assure a smooth and scratch-less surface.

Wood finish

Assure you are selecting cr TRupER• brand sanding belts with the right grain. • For the initial sanding on an unfinished piece of wood use a belt with rough or very rough grain. Sand along the grain. Should the wood is uneven or trt hard, sand diagonally (across the grain). Use care to prevent striation. • After the preliminary operation, change the belt. Use a medium grain belt and sand along the grain. This will give a relatively smooth and even finish. • For the final finish set a fine grain belt. Always sand along thg grain to remove scratches left by the rougher belts. For a good finish use long and light passes. • As a final touch, the experts usually set a fine sanding belt used to get a smooth surface, to fill, seal, plane or spray.

Finishing panels

• The belt sander also removes old paint, varnish or lacquer. Please use the safety measures mentioned before. However, if the paneling is made of several layers, remove as much material as possible with a paint solvent or varnish remover before using the belt sander. Use a  hand-scratcher to remove residues left by the solvent. Allow the surface to dry completely before sanding.
• For a fast removal, start with a rough grain belt.
• When you can see the raw material change to a medium grain belt to prevent from scratching it. Use short and light passes moving the sander quickly.
• Pay attention that excessive pressure or constantly sanding on the same spot will burn the panel.

Maintenance

Cleaning and care

• Keep the vent slots of the motor cover clean and without
• After each use, use compressed
• If the tool is defective go only to a Authorized Service center.

Carbon brush replacement

• Replace worn carbon brushes (burnt, broken or smaller that 0.19” long). Use new carbons.
• When replacing, both carbon brushes shall be replaced
• Remove worn carbon brushes from the carbon Remove accumulated dust with compressed air.
• Set the new carbons reversing the Carbons shall fit easily in the carbon housing.
• After setting the new carbon brushes, let the tool run unloaded 10 minutes to better adjust the
• Use only original spare carbons specifically designed with the hardness and resistance adequate for each type of Carbons that are out of specification could damage the motor.

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