scheppach 4903303901 Belt and Disk Grinder Instruction Manual

scheppach 4903303901 Belt and Disk Grinder

Only for EU countries.
Do not dispose of electric tools together with household waste material!In observance of European directive 2012/19/EU on wasted electrical and electronic equipment and its implementation in accordance with national law, electric tools that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

Explanation of the symbols on the equipment

Read the operating instructions to reduce the risk of injury

Wear ear-muffs. The impact of noise can cause damage to hearing.

Wear a breathing mask. Dust which is injurious to health can be generated when working on wood and other materials. Never use the device to work on any materials containing asbestos!

Wear safety goggles. Sparks generated during working or splinters, chips and dust emitted by the device can cause loss of sight.

Attention!
These operating instructions provide places concerning your safety which are marked with this indication

Caution!
Failure to follow thes-ay cause light to medium risk of injury

Warning!
Failure to follow these instructions may cause danger to life or danger of serious injuries

Introduction

Manufacturer:
scheppach
Fabrikation von Holzbearbeitungsmaschinen GmbH Günzburger Straße 69
D-89335 Ichenhausen

Dear customer,
We hope you have a lot of fun and success using your new machine.

Note:
According to the applicable product liability laws, the manufacturer of the device does not assume liability for damages to the product or damages caused by the product that occurs due to:

• improper handling,
• noncompliance of the operating instructions,
• repairs by third parties, not by authorized service technicians,
• installation and replacement of non-original spare parts,
• non-intended use,
• A breakdown of the electrical system that occurs due to the non-compliance of the electric regulations and VDE regulations 0100, DIN 57113 /VDE0113.

We recommend:
that you read through the entire operating instructions before putting the machine into operation. These operating instructions are to assist you in get- ting to know your machine and utilize its proper applications. The operating instructions contain important notes on how you work with the machine safely, expertly, and economically, and how you can avoid hazards, save repair costs, reduce downtime and increase the reliability and service life of the machine. In addition to the safety requirements contained in these operating instructions, you must be careful to observe your country’s applicable regulations.

The operating instructions must always be near the machine. Put them in a plastic folder to protect them from dirt and humidity. They must be read by every operator before beginning work and observed conscientiously. Only persons who have been trained in the use of the machine and have been informed of the various dangers may work with the machine. The required minimum age must be observed. In addition to the safety requirements in these operating instructions and your country’s applicable regulations, you should observe the generally recognized technical rules concerning the operation of identically constructed devices.

Device description (Fig. 1-3)

1. Safety glass
2. Spark deflector
3. Spark deflector adjusting screw
4. Fastening screw Safety glass holder
5. Guard hood
6. Grinding wheel
7. Workpiece support star screw
8. Workpiece support
9. Grinding / sanding belt
10. Belt guidance adjustment screw
11. Clamp screw for the top belt roller
12. Fastening screw for side cover
13. Side cover
14. Mounting point
15. Foot
16. On/Off switch
17. Coolant reservoir
18. Fastening screw for workpiece support

Scope of delivery

Grinder/Sander (1)
Instruction manual (1)
Sanding disc (1)
Sanding belt (1)
Grinding wheel dresser (1)
Waranty sticker (1)

• Open the packaging and remove the device carefully.
• Remove the packaging material as well as the packaging and transport bracing (if available).
• Check that the delivery is complete.
• Check the device and accessory parts for transport damage.
• If possible, store the packaging until the warranty period has expired.

Attention!
The device and packaging materials are not toys!
Children must not be allowed to play with plastic bags, film and small parts! There is a risk of swallowing and suffocation!

Intended use

The grinder/sander is a combination device for the coarse and fine grinding/sanding of metals, woods of all kinds and other materials using the appropriate grinding/sanding wheel or belt.
The machine may only be used with grinding/sanding wheels or belts which are suitable for it and comply with the characteristic data in these instructions.
The machine is allowed to be used only for it intended purpose! Even when the equipment is used as prescribed it is still impossible to eliminate certain residual risk factors. The following hazards may arise in connection with the machine’s construction and layout:

• Contact with the grinding wheel where it is not covered.
• Catapulting parts out of damaged grinding wheels.
• Catapulting of workpieces and parts of workpieces.
• Damage to hearing if essential ear-muffs are not used.
• Harmful emissions of wood dust when used in closed rooms.
• The rotating parts of the device cannot be covered for functional reasons. Therefore you must exercise care and hold the workpiece firmly to
  prevent it slipping which could result in your hands coming into contact with the grinding/ sanding belt.

The equipment is allowed to be used only for its prescribed purpose. Any other use is deemed to be a case of misuse. The user/operator and not the manufacturer will be liable for any damage or injuries of any kind resulting from such misuse.

Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will be voided if the equipment is used in commercial, trade or industrial businesses or for equivalent purposes.

Safety information

Caution!
Read all safety regulations and instructions. Any errors made in following the safety regulations and instructions may result in an electric shock, fire and/or serious injury. Keep all safety regulations and instructions in a safe place for future use.

Warning! To protect against electric shock, injury and fire the following basic safety precautions must be observed when using power tools.
Read and follow these instructions before using the equipment and keep the safety information in a safe place.

1. Keep work area clean
   Cluttered areas and benches invite injuries.

2. Consider work area environment
   Don’t expose power tools to rain. Don’t use power tools in damp or wet locations. Keep work area well lit. Don’t use power tools in presence of flam- mable liquids or gases.

3. Guard against electric shock
   Prevent body contact with grounded surfaces (e.g. pipes, radiators, ranges refrigerators).

4. Keep children away
   Do not allow other persons to touch the equip-ment or cable, keep them away from your work area.

5. Store idle tools
   When not is use, tools should be stored in dry, high, or locked-up place, out of the reach of children.

6. Don’t force tool
   It will do the job better and safer at the rate for which it was intended.

7. Use right tool
   Don’t force small tools or attachments to do the job of heavy duty tool. Don’t use tools for pur-poses not intended.

8. Dress properly
   Do not wear loose clothing or jewellery. They can be caught in moving parts. Rubber gloves and non-skid footwear are recommended when working outdoors. Wear protective hair covering to contain long hair.

9. Use safety glasses
   Also use face or dust mask if cutting operation is dusty.

10. Don’t abuse cord
    Never carry tool by cord or yank it to disconnect it from receptacle. Keep cord from heat, oil and sharp edges.

11. Secure work
    Use clamps or a vice to hold work. It’s safer than using your hand and it frees both hands to oper-ate tool.

12. Don’t overreach
    Keep proper footing and balance at all times.

13. Maintain tools with care
    Keep tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and, if damaged, have repaired by authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean and free from oil and grease.

14. Disconnect tools
    When not in use, before servicing, and when changing accessories.

15. Remove adjusting keys and wrenches Form the habit of checking to see that keys and adjusting wrenches are removed from tool before turning it on.

16. Avoid unintentional starting
    Don’t carry plugged-in tool with finger on switch. Be sure switch is off when plugging in.

17. Outdoor use extension cords
    When tool is used outdoors, use only extension cords intended for use outdoors and so marked.

18. Stay alert
    Watch what you are doing. Use common sense. Do not operate tool when you are tired.

19. Check damaged parts
    Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and per-form its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service-center unless otherwise indicated elsewhere in this instructions manual. Have defective switches replaced by an authorized service-center. Do not use tool if switch does not turn it on and off

20.  Warning!
    The use of any other accessory or attach ment other than recommended it this operating instruction or the catalog may present a risk of personal injury.

21. Have your tool repaired by an expertThis electric appliance is in accordance with the relevant safety rules repairing of electric appliances may be carried out only by experts otherwise it may cause considerable danger for the user.

22. Connect the dust extraction device Wherever there are facilities for fitting a dust extraction system, make sure it is connected and used.

General safety regulations and accident prevention
It is essential that you read the safety regulations and operating instructions in their entirety and follow the information contained therein in order to eliminate the possibility of an accident or potentially dangerous situation from occurring while working with the machine.

• Always check the device, the mains cable and the plug before using the device. Only operate the tool when it is in good working order and is not damaged in any way. Damaged parts have to be replaced immediately by a qualified electrician.
• Always pull the power plug out of the socket-outlet before doing any work on the machine, before changing tools and whenever the machine is not being used.
• To prevent damage to the power cable, always lead the power cable away from the rear of the machine.
• Keep the tools in a safe place and out of the reach of children.

Use on materials containing asbestos is prohibited.
Note the corresponding accident prevention regula-tion issued by the professional associations in your country.

• Use only original replacement parts.
• Repairs may only be carried out by a qualified electrician.
• The machine may exceed 91.5 dB at the work-place. The operator will require noise protection measures and ear muffs if this is the case. The noise of this electric tool is measured in accordance with IEC 59 CO 11, IEC 704, DIN 45635 part 21, NFS 31-031 (84/537/EEC).
• Ensure that you maintain a steady foothold. Avoid abnormal working postures.
• Do not expose your electric tool to rain. Never use electric tools in damp or wet locations or near flammable liquids or gases.
• Protect the mains cable from becoming dam-aged by oil, solvents and sharp edges.
• Keep your work area tidy.
• Make sure that the switch is turned off when connecting the tool to the power supply.
• Wear suitable work clothes. Never wear loose-fitting clothes and jewellery. Wear a hair net if you have long hair.
• For your own safety, use only accessories and auxiliary equipment from the manufacturer of your electric tool.
• Always wear safety goggles, protective gloves and ear-muffs while carrying out grinding, brushing and cutting jobs.
• Check that the rotating speed shown on the wheel is equal to or higher than the rated speed of rotation for the tool.
• Make sure that the grinding wheel is of the correct size for the grinder.
• Grinding wheels must be handled and stored with care in accordance with the manufacturer’s instructions. Examine the grinding wheel each time before using it. Never use grinding wheels which have parts broken off or are cracked or in any other way damaged.
• Be sure to use only grinding wheels and brush-es which are marked with a speed at least as high as the speed indicated on the rating plate of the electric tool.
• Check that grinding wheels are fitted in accord-ance with the manufacturer’s instructions.
• Make sure that intermediate layers are used if they are supplied with and required for the grind-ing wheel.
• Make sure that the grinding disk is correctly fit-ted and secured before you start to use the tool. Allow the machine to run without load and in a safe position for 5 minutes. Stop the machine immediately if severe vibrations arise or any other defects are noticed. If this should be the case, examine the machine to find the cause.
• The electric tool must never be used without the guard hood supplied with it.
• Never use separate reducer sleeves or adapters to make grinding wheels with larger holes fit on the machine.
• Take precautions to ensure that flying sparks do not cause any danger, e.g. that they do not hit anyone or cause inflammable substances to ignite.
• Always wear safety goggles and ear-muffs; use other personal safety equipment such as gloves, an apron and a helmet if necessary.
  The workpiece becomes hot during grinding.

Important! Risk of burns!
Let the workpiece cool down. The material may become glowing hot during the grinding. On longer jobs, allow the workpiece to cool down occasionally.

• Do not use coolant or the like.

Special safety information

1. Before you use the grinder, carry out a ring test on the grinding wheels (perfect grinding wheels emit a clear tone when hit lightly with e.g. a plastic hammer). This also applies when you fit new grinding wheels (damage in transit). It is essential to subject the machine to an unloaded test run of at least 5 minutes. Leave the danger zone while the test is in progress.

2. Use only grinding wheels which are marked with details of the manufacturer, the type of bonding agent used, dimensions and the permissible
   RPM.

3. Grinding wheels must be stored in a dry place, ideally at a constant temperature.

4. Use only the clamping flanges supplied with the equipment to mount the grinding wheels.

5. Use only clamping flanges of identical size and identical shape to mount the grinding wheels.
   The intermediate layers between the clamping flange and the grinding wheel must be comprised of elastic materials, e.g. rubber, soft cardboard, etc.

6. Never enlarge a grinding wheels’ mounting hole by subsequent drilling.

7. The workpiece supports and the top adjustable safety guards must always be moved as close as possible to the grinding wheel (max. 2 mm clearance).

8. Grinding wheels are not allowed to be used without the safety device. The following clearances must not be exceeded:

   • Workpiece support/grinding wheel: max. 2 mm
   • Safety guard/grinding wheel: max. 2 mm

9. The guard holder, workpiece support and transparent guard must be fitted before the double grinder is used.

10. The power plug must be pulled out before changing the grinding wheel.

11. The max. circumferential speed of the dry grinding wheel is: 23 m/s m/s = (d x 3.14 x n) / (60 x 1000)
    d = diameter of the grinding wheel in mm
    n = motor revolutions per minute

12. Max. permitted motor housing temperature:
    80°C

13. Before starting work, firmly screw the grinder to the workbench by using the 2 mounting points
    on the base plate.

14. Adjust the spark deflector periodically in order to compensate the wear of the wheel. Please note that the distance between the spark deflector and the wheel is to be kept as small as possible and should in no case exceed 2 mm.

15. The grinding wheel must be replaced at the latest when the spark deflector and the workpiece support can no longer be set a maximum distance of 2 mm from the grinding wheel.

16. Process only work pieces, which can be held in position safely. Processing very small work pieces will increase the risk injuries. Longer work pieces must be supported by using a roller stand (optional equipment) or the like.

Residual risks
Even if you use this electric power tool in accordance with instructions, certain residual risks cannot be ruled out. The following hazards
may arise in connection with the equipment’s construction and layout:

• Lung damage if no suitable protective dust mask is used.
• Damage to hearing if no suitable ear protection is used.
• Health damage caused by hand-arm vibrations if the equipment is used over a prolonged period or is not properly guided and maintained.
  Keep this safety information in a safe place.

Technical data

• dimensions L x W x H mm 360 x 280 x 335
• ø grinding wheel mm 150
• grinding wheel thickness mm 20
• ø grinding wheel hole mm 12.7
• max. circumferential speed m/s 23
• belt speed m/min 895
• grinding /sanding belt L x W mm 686 x 50
• weight kg 10.2
• drive
• rated voltage V/Hz 230/50
• power rating 370W S2 30min
• idle speed n0 min-1 2850

Load factor:
A load factor of S2 30 min (intermittent periodic duty) means that you may operate the motor continuously at its nominal power level (230 W) for no longer than 30 minutes ON period. If you fail to observe this time limit the motor will overheat. During the OFF period the motor will cool again to its starting temperature.

INoise
Sound values were measured in accordance with EN 61029.

• Sound pressure level LpA 82.3 dB(A)
• Uncertainty KpA 3 dB
• Sound power level LWA 91.5 dB(A)
• Uncertainty KWA 3 dB

Wear ear-muffs.
The impact of noise can cause damage to hearing.
Limit the noise to a minimum!

• Only use appliances which are in perfect working order.
• Service and clean the appliance regularly.
• Adapt your working style to suit the appliance.
• Do not overload the appliance.
• Have the appliance serviced whenever necessary.
• Switch the appliance off when it is not in use.
• Wear protective gloves.

Before operation
Before you connect the equipment to the mains supply make sure that the data on the rating plate are identical to the mains data.
Always pull the power plug before making adjustments to the equipment.

• The machine must be set up so that it stands firmly, i.e. it must be securely screwed to a work bench or similar.
• The grinder should be fixed permanently at a suitable place. To attach the grinder to a hard and flat surface, there are two mounting points on the grinder. The tool support should be approximately at the height of your elbow. The working area is in front of the machine – keep it free of obstacles.
• All covers and safety devices have to be properly fitted before the equipment is switched on.
• It must be possible for the grinding wheel to run freely.

Assembling the spark deflector (Fig.1-3)

• Slide the spark deflector (2) under the guard hood (5). Screw the spark deflector (2) to the guard hood (5) by using the spark deflector adjustment screw (3).
• Use the spark deflector adjustment screw (3) with the spring washer and the washer to fix the spark deflector (2). To secure you will need a screwdriver (Fig. 2).
• Adjust the spark deflector (2) using the spark deflector adjusting screw (3) so that the distance between the dry grinding wheel (6) and the spark deflector (2) is as small as possible and certainly does not exceed 2 mm. (Fig.3)
• Adjust the spark deflector (2) periodically to compensate for wear on the wheel.

Fitting the workpiece supports (Fig. 1/4/5/6)

• Secure the workpiece supports (8) to the grinder/sander using the workpiece support star screw (7) on belt side and the 2 fastening screws for workpiece support (18) on grinding wheel (5) side.

Adjusting the workpiece supports (Fig. 5+6)

• Adjust the workpiece supports (8) using the fastening screws for workpiece support (18) and the workpiece support star screw (7)so that the distance between the dry grinding wheel (6) or the grinding/sanding belt (9) and the workpiece supports (8) is as small as possible and certainly does not exceed 2 mm.
• Adjust the workpiece supports (8) periodically to compensate for wear on the dry grinding wheel.

Changing the grinding wheel (Figs. 1/7-9)

Loosen the 3 fastening screws (12) for side cover (12) holding the grinding wheel side cover (13), turn anti-clockwise and take it off (Fig. 7). Slacken the nut (Fig. 8/A) (important: the grinding/ sanding wheel is fastened with a lefthanded thread) by holding the nut (Fig. 9/A) of the grinding/sanding belt roller on the opposite side. Then remove the flange (B) and replace the grinding wheel (6). The grinding wheel is mounted with the help of a rag.
Mount the flange (B) on the shaft and screw on the nut (A) hand-tight (Fig. 8).
To tighten the nut (A), hold the grinding wheel (6) with a rag and tighten the nut (A) (Fig. 8).

Changing the grinding/sanding belt (Fig. 1/10-12)

• Loosen the fastening screw for side cover (12) and remove the side cover (13).
• Slacken the clamp screw for the top belt roller (11) by a few turns.
• Push the top belt roller downwards and pull the grinding/sanding belt out off the rollers.
• Place the new grinding/sanding belt (9) in the center of the top and bottom rollers and release the clamping top belt roller.
• Now tighten the clamp screw for the top belt roller (11) and fit the side safety guard.
• With the belt guidance adjustment screw (10) on the side you can adjust the belt run by turning.
  Precise adjustment of the belt run is best done by turning the grinding/sanding belt by hand. m Attention!
  After replacing the grinding wheel or sanding belt, all guards must be reassembled.

Operation

On/Off switch (16)

• To switch on the equipment set the On/Off switch (16) to position 1.
• Move the On/Off switch (16) to position 0 to switch off the equipment. After switching on, wait for the equipment to reach its maximum
  speed of rotation. Only then should you begin with the grinding.

Grinding

• Place the workpiece onto the workpiece support (8) and slowly guide the workpiece towards the grinding wheel (6) at the desired angle to the point where workpiece and grinding wheel make contact.
• Move the workpiece slightly back and forth to produce an optimal grinding result. This way the grinding wheel (6) will be evenly worn. Allow the workpiece to cool down occasionally.

Grinding/sanding with the belt

• Always hold the workpiece firmly during grinding/ sanding.
• Do not exert excessive pressure.
• The workpiece should be moved on the belt to prevent the paper wearing on one side.
• Important! Pieces of wood should always be sanded with the grain to prevent them splitting.

Using the grinding wheel dresser
The grinding wheel dresser is a tool for straightening of grinding wheels.

• Press lightly against grinding wheel – without creating sparks. Move the dresser sideways over the entire width of wheel.

Attention! Always wear safety goggles.

Attention!
If the grinding wheel or the grinding/sanding belt becomes jammed during operation, please remove the workpiece until the tool reaches its top speed again.

Cleaning and maintenance

Always pull out the mains power plug before starting any cleaning work.

Cleaning

• Keep all safety devices, air vents and the motor housing free of dirt and dust as far as possible.
  Wipe the equipment with a clean cloth or blow it with compressed air at low pressure.

• We recommend that you clean the device immediately each time you have finished using it.

• Clean the equipment regularly with a moist cloth and some soft soap. Do not use cleaning agents or solvents; these could attack the plastic parts of the equipment. Ensure that no water can seep into the device.

Maintenance
There are no parts inside the equipment which require additional maintenance.

Storage/Transport
Store the equipment and accessories out of children’s reach in a dark and dry place at above freezing temperature. The ideal storage temperature is between 5 and 30 °C. Store the electric tool in its original packaging.

Attention! Unplug the machine!
The appliance must unconditionally be secured against falling or turning down during transport.
The appliance can be lifted on the left and right grinding wheel / belt sander cover. Power cable, flexible lamp shaft etc. should not be used for transport purpose.

Electrical connection
The installed electric motor is factory connected ready for operation.
The connection meets the applicable VDE and DlN regulations.
The connection made by the customer as well as any extension cables used must comply with all relevant regulations.
Connection and repair work on the elctric equipment must be carried out by a qualified technician only.

Important note
The motor rating is S 1. This means that when overloaded it switches off automatically. After a cooling period (can vary) you may switch it on again.

Disposal and recycling
The equipment is supplied in packaging to prevent it from being damaged in transit. The raw materials in this packaging can be reused or recycled. The equipment and its accessories are made of various types of material, such as metal and plastic. Never place defective equipment in your household refuse.
The equipment should be taken to a suitable collection center for proper disposal. If you do not know the whereabouts of such a collection point, you should ask in your local council offices.

Troubleshooting

b)    ON/OFF cable damaged.

c)    ON/OFF relay damaged.

d)    Fuse blown.

e)    Motor burnt.

| a-d) Replace all damaged parts before you use your machine again.

e) Contact your local service centre. Every at- tempt to carry out a repair, can be dangerous if it is not done by skilled personnel.

Machine

gets slower during work.

| Too much pressure put on the work- piece.| Reduce the pressure on the workpiece.
Sanding belt comes off

the drive pulleys.

| Belt does not run straight.| Reset the track.
The wood gets burnt during

sanding.

| a)  Sanding disc or belt covered with grease.

b)  Excessive pressure on workpiece.

| a) Replace disc or belt.

**** b) Reduce pressure on workpiece.

DIAGRAM

hereby declares the following conformity under the EU Directive and standards for the following article

Warranty

Apparent defects must be notified within 8 days from the receipt of the goods. Otherwise, the buyerís rights of claim due to such defects are invalidated. We guarantee for our machines in case of proper treatment for the time of the statutory warranty period from delivery in such a way that we replace any machine part free of charge which provably becomes unusable due to faulty material or defects of fabrication within such period of time. With respect to parts not manufactured by us we only warrant insofar as we are entitled to warranty claims against the upstream suppliers. The costs for the installation of the new parts shall be borne by the buyer. The cancellation of sale or the reduction of purchase price as well as any other claims for damages shall be excluded.

scheppach Fabrikation von Holzbearbeitungsmaschinen GmbH | Günzburger Str. 69 |
D-89335 Ichenhausen
www.scheppach.com
www.scheppach.com
service@scheppach.com
+(49)-08223-4002-99
+(49)-08223-4002-58

References

• scheppach | scheppach

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