virutex ST62 Brush Sander Instruction Manual

virutex ST62 Brush Sander Instruction Manual

SAFETY INSTRUCTIONS

Read carefully the GENERAL SAFETY INSTRUCTIONS LEAFLET, which is included
in the machine documentation.

Safety guidelines during power tool operation

• Before any repair and replacement work to the machine, the power plug must be pulled out firstly.
• Notice the power voltage: in power connection, you must confirm that if the power voltage is the same to the voltage marked in the tool’s data plate. If the power voltage is higher than the appropriate voltage, the accidents will be resulted to the operators, and at the same time, the tool will be destroyed. Therefore, if the power voltage has not been confirmed, then you shall never plug in arbitrarily. On the contrary, when the power voltage is lower than the required voltage,  the motor will be damaged

Safety warnings common for grinding, sanding, wire brushing and polishing:

• • ST62 brush sander is a high-performance equipment intended to polish, sand or grind different surfaces and materials by coupling different wheels. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and / or serious injury.

• Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure 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 can break and fly apart.

• The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.

• The arbor size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbor holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause
  loss of control.

• Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory stropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.

• Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtratin particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

• Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

• Hold the power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

• Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

• Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.

• Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

• Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

• Do not operate the power tool near flammable materials. Sparks could ignite these materials.

• Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock

Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the union-trolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding. For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions
Kickback is the result of power tool misuse and / or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

• Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces, if proper precautions are taken.
• Never place your hand near the rotating accessory. Accessory may kickback over your hand.
• Do not position your body in the area where power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging.
• Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.
• Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

Safety warnings specific for wire brushing operations

• Please note that a brush can scatter wire even during normal work. Do not apply excessive pressure on the power tool, this will increase wear and wire scattering. Scattering wire can easily penetrate light clothes and rip into skin.
• No foreign materials are allowed between the wire brush and the protective housing.
• Follow recommendations on mounting of brushes – the direction of the arrow on the brush must be the same as that on the power tool reducer.
• When processing workpieces of small size or weight, fix them securely. If workpieces are too small to be fixed securely, do not process them. Large-size workpieces must have adequate support, must not slack, and their ends should not vibrate.
• It is strictly forbidden to work with the power tool turned upside-down or fixit at place – it can be dangerous and cause serious injuries.
• Workpieces containing asbestos must not be processed.
• It is strictly forbidden to reduce brush rotation speed by inertia, using the spindle keylock. Using the spindle keylock for this purpose will cause failure of the power tool and make the warranty void.

Reducing dust exposure

The chemical substances contained in dust generated in sanding, cutting, sawing, grinding, drilling and other construction industry activities may result in cancer, congenital deficiency or be harmful to the fertility

The ion of some chemical substances shall be:

• The transparent two silicon oxide and other masonry products in the wall bricks and cement; the chromium arsenic (CCA) in wood with chemical treatment. The harm degree of these substances shall depend on the frequent
  degree of you carrying out these works. If you want to reduce the contact with these chemical substances, please work in the place with ventilation and you shall use the appliances with safety certificates (such as the dust mask designed with tiny dust filter).

TECHNICAL CHARACTERISTICS

Universal motor ………………50/60 Hz
Power ………………..1,400 W
Speed range ……….1,000-4,000 r.p.m.
Wheel diameter ….110x100x19 mm
Weighed acoustic pressure level A ……..91 dBA
Weighed acoustic power level A …………102 dBA
Measuring accuracy ……………….K = 3 dBA
Weight …………….3.650 Kg

Wear ear protection!

Total vibration values ………….ah : <2.5 m/s2
Measurement uncertainty ………K: <1.5 m/s

STANDARD EQUIPMENT

The packaging should include the following items: ST62
brush sander
Nylon roller
Auxiliary handle
6 mm a/f hex wrench
Instructions manual and other documents

MACHINE PURPOSES

ST62 brush sander is a high-performance equipment intended to polish, sand or grind different surfaces and materials by coupling different wheels.

MOUNTING AND SETTING OF THE DIFFERENT ELEMENTS IN THIS POWER TOOL

Unplug the machine from the main before starting any maintenancrocedures. To avoid thread damages, do not exceed recommended tightening forces

Assembling and dismantling the safety guard (Fig. 1-2).

Never operate without the guard 7. The closed part of the guard must always be on the user’s side.

1.  Move the locking lever as indicated in (Fig. 1.1)

2.  Set the guard 7 on the spindle. Make sure the assembly tab 21 fits into the longitudinal slot in the spindle (Fig. 1.2).

3. Turn the guard 7 up to the right position and push the locking lever as indicated in (Fig. 2.1).

4. To take off the guard 7 follow the above described steps in reverse order.

5. If the locking lever 11 does not hold the guard 7 in its correct position, use an appropriate wrench (not included in the standard equipment) to tighten the nut 22 in (Fig. 2.2).

Assembling the auxiliary handle (see Fig. 3).

Always use the auxiliary handle when operating with this tool.

1. Set the plate 4 and tighten the screws 3 (Fig. 3.1)

2. Set the auxiliary handle on the plate 4 according to the instructions in (Fig. 3.2).

3. Follow these instructions in reverse order to take the auxiliary handle off.

Assembling and dismantling the dust collector fitting (Fig. 4).

Assemble/dismantle the dust collector fitting according to the instructions in (Fig. 4).
You can use the standard dust collector fitting 6446073 (2,25 m) or 1746245 (5 m) to connect this tool to any of our dust collectors AS182K, AS282K, AS382L, ASC682 or ASM582T.

Regulating the position of the fore roller (Fig. 5).

The fore roller 12 should be adjusted as the sanding wheel gets worn out

1. Loosen the wing nut 13 (Fig. 5.1).

2. Move the fore roller 12 up or down so that the sanding wheel is slightly pressed and the two rollers 12 and 15 are in contact with the working surface (Fig. 5.2, 5.3).

3. Tighten the wing nut 13 back (Fig. 5.1).

Assembly and replacement of the sanding wheels (Fig. 6 and 7).

After installing any accessory perform a running test before actually operating with this tool. Turn on the tool and let it run idle for 30 seconds. Do not use brushes with radial or axial wear, since they may increase vibrations and cause failures.

Protective gloves should be worn when replacing the brush

1. Press down the tab 14 and remove the guard 8 as indicated in (Fig. 6.1).

2. Press the lock button on the axle 9. Try to turn the axle to verify that it can turn free (Fig. 6.2).

3. Insert the washer 27 on the axle 23. Put the locking pins 19 on the axle 23 (Fig. 7.1).

Do not use damaged pins (burred edge, misshaped…) or with different length or profile. Do to assemble the sanding brush with only one locking pin.

4. Insert the brush 26, the washer 25 and the screw 24 and tighten with the hex wrench provided with this equipment (Fig. 7.2)

5. Press the button 9 to unlock.

6. Replace the guard 8.
   The guard 8 must be correctly positioned and the tab 14 must fit correctly into its position.

7. Let the brush 26 roll up several times. It should turn freely without getting in contact with any of the tool parts

STARTING UP

Make sure the tool voltage is the same as the power supply voltage. The operating voltage is indicated on the tool’s specifications plate.

To turn the tool on, press the rear part of the switch 2 and, while holding it in this position, slide the switch forwards. Press on the fore part of the switch to lock it into the ON position.
To turn the tool off, press on the rear part of the switch 2

COLLECTING DUST AND SHAVINGS

Dust and shaving can be sucked to reduce their presence in the ambience and avoid gathering dust in the working environment. Always use a dust collector whenperating this tool. The fitting (18) let you connect a dust collecting equipment. You can either use the standard dust collector fitting 6446073 (2,25 m) or 1746245 (5 m) to connect this tool to any of our dust collectors AS182K, AS282K, AS382L, ASC682 or ASM582T.

SPECIFICATIONS

Protective system against undesired start up.
It prevents the tool from starting up after a power cut off. The switch must be set back into the stop position before turning on the tool again.

Progressive start up.
It allows the tool to be started at low speed and increase speed gradually. The axle turns on and speeds up gradually without jerking until the set speed is reached

Constant speed.
The turning speed remains constant regardless of the pressure on the workingurface. Constant turning speed ensures optimum sanding quality.

Speed selector.
The speed selecting knob 17 allows the user to select the appropriate turning speed (it can be changed even during operation). The user can test and select the desired working speed depending on the working material. If you have been operating this tool at low speed for a long time, 3-minute cooling time should be allowed. To cool the machine down, set the speed selecting knob at the top speed position and make the tool work idle.

RECOMMENDED USE FOR THIS POWER TOOL

Choose the right brush.
Select the most appropriate brush (nylon, metal, sand paper…) for the job.
The intended use for each brush type should be indicated on its packaging. You may also ask your supplier for guidance.

General recommendations.
Turn on the tool and let it turn at the selected speed. Then, slowly bring the brush 26 onto the working piece. Do not apply exceeding pressure on the tool. Excess of pressure will not produce better results and you may cause the motor to overload as well as premature brush wear. Move the tool at moderate constant speed. Do not make sudden movements or fluctuations. It is strongly recommended that you make a test on a trial surface in order to determine the recommended turning speed. Regulate the position of the wheel 12 as the brush is being worn out (Fig. 5).

MAINTENANCE

Unplug the machine from the main before starting any maintenance procedures.

Tool cleaning procedures.
For a long life of this tool, it must be properly maintained and cleaned. When working with metal, conducting dust may gather inside the tool. Blow compressed air through the vent
slots 1 to clean this tool regularly. When working with resinous materials, dust may stick onto some of the tool parts. For that type of jobs, it will be necessary:

• To verify that the inside of the protective guard 7 is clean.
• To keep the rollers 12 and 15 clean. Their surface must be clean, and they must rotate freely.
• Check that the dust exhaust outlet 16 is free from any obstructions.
• Check the vent slots 1, particularly at the lower part of the tool and remove any obstructions. Properly clean the above-mentioned components and remove any obstructions as required.

OPTIONAL ACCESSORIES

6291214 nylon roller for satin finish
6291216 Sand paper flap wheel for metal sanding
6291217 Scotch wheel for metal polishing
6291215 Metal wheel for deburring old hardened wood
1746245 5 m dust collector coupling
6446073 2.25 m dust collector coupling

NOISE AND VIBRATION LEVEL

The noise and vibration levels of this device have been measured in accordance with European standard EN 60745-2-3 and EN 60745-1 and serve as a basis foromparison with other machines with similar applications. The indicated vibration level has been determined for the device’s main applications and may be used as an initial value for evaluating the risk presented by exposure to vibrations. However, vibrations may reach levels that are quite different from the declared value under other application conditions, with other tools or with insufficient maintenance of the electrical device or its accessories, reaching a much higher value as a result of the work cycle or the manner in which the electrical device is used.
Therefore, it is necessary to establish safety measures to protect the user from the effects of vibrations, such as maintaining both the device and its tools in perfect condition and organizing the duration of work cycles (such as operating times when the machine is subjected to loads, and operating times when working with no-load, in effect, not in use, as reducing the latter may have a considerable effect upon the overall exposure value)

WARRANTY

All VIRUTEX power tools are guaranteed for 12 months from the date of purchase, excluding any damage which is a result of incorrect use or of natural wear and tear on the machine. All repairs should be carried out by the official VIRUTEX technical assistance service.

RECYCLING ELECTRICAL EQUIPMENT

Never dispose of electrical equipment with domestic waste. Recycle equipment, accessories and packaging in ways that minimise any adverse effect on thvironment. Comply with the current regulations in your country. Applicable in the European Union and in European countries with selective waste collection systems: If this symbol appears on the product or in the accompanying information, at the end of the product’s useful life it must not be disposed of with other domestic waste.

In accordance with European Directive 2002/96/EC, users may contact the establishment where they purchased the product or the relevant local authority to find out where and how they can take the product for environmentally friendly and safe recycling

VIRUTEX reserves the right to modify its products without prior notice.

References

• Quality Woodworking Professional Tools and Machinery | Virutextools

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