HG34 - Grinder SCHEPPACH - Free user manual and instructions

USER MANUAL HG34 SCHEPPACH

Bench grinder Translation of original instruction manual

Explanation of the symbols on the equipment Symbols are used in this manual to draw your attention to potential hazards. The safety symbols and the accompanying explanations must be fully understood. The warnings themselves will not rectify a hazard and cannot replace proper ac- cident prevention measures. Caution - Read the operating instructions to reduce the risk of inquiry Wear ear-mu󰀨s. 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 emit- ted by the device can cause loss of sight. m Achtung! WARNING: Disregard results in a risk of death or injury, or damage to the tool. www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

Table of contents: Page:

7. Before putting the machine into operation ................................ 22

In addition to the safety instructions contained in this op- erating manual and the specic regulations of your coun- try, the technical rules generally accepted for the oper- ation of machines of the same type must be observed. We accept no liability for damage or accidents which arise due to non-observance of these instructions and the safety information.

7. Workpiece support star screw

8. Workpiece support

10. Spark deector adjusting screw

3. Scope of delivery

• Double-wheel grinder

• Safety glass with spark deector

• 100-piece accessories

The double-wheel grinder is a combination tool for the grinding and polishing of metals, plastics and oth- er materials using the appropriate grinding wheels. The exible shaft is designed for the grinding, de- burring, polishing, engraving, cutting, milling and cleaning of wood, metal and plastic in modelmak- ing, in workshops and in the home. Use the tool and its accessories only for the applications described. The machine is allowed to be used only for its in- tended purpose! Even when the equipment is used as prescribed it is still impossible to eliminate cer- tain 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 notco- vered.

• Catapulting of parts from out of damaged grinding wheels.

• Catapulting of workpieces and parts of workpieces.

• Damage to hearing if essential ear-mu󰀨s are not

Manufacturer: scheppach Fabrikation von Holzbearbeitungsmaschinen GmbH Günzburger Straße 69 D-89335 Ichenhausen Dear customer, We hope your new tool brings you much enjoyment and success. 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:

• Non-compliance of the operating instructions

• Repairs by third parties, by not authorized service technicians

• Installation and replacement of non-original spare parts

• Application other than specied

• A breakdown of the electrical system that occurs due to the non-compliance of the electric regu- lations and VDE regulations 0100, DIN 57113 / VDE0113 Please observe the following: Read through the complete text in the operating in- structions before installing and commissioning the device. The operating instructions are intended to help the user to become familiar with the machine and take ad- vantage of its application possibilities in accordance with the recommendations. The operating instructions contain important informa- tion on how to operate the machine safely, profession- ally and economically, how to avoid danger, costly repairs, reduce downtimes and how to increase relia- bility and service life of the machine. In addition to the safety regulations in the operating instructions, you have to meet the applicable regula- tions that apply for the operation of the machine in your country. Keep the operating instructions package with the machine at all times and store it in a plastic cover to protect it from dirt and moisture. Read the instruction manual each time before operating the machine and carefully follow its information. The machine can only be operated by persons who were instructed concerning the operation of the ma- chine and who are informed about the associated dangers. The minimum age requirement must be complied with. www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

2. Electrical safety

a) Power tool plugs must match the outlet. Nev- er modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodied plugs and matching outlets will reduce risk of electric shock. b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of elec- tric shock if your body is earthed or grounded. c) Do not expose power tools to rain or wet con- ditions. Water entering a power tool will increase the risk of electric shock. d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords in- crease the risk of electric shock. e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the inuence of drugs, alcohol or med- ication. A moment of inattention while operating power tools may result in serious personal injury. b) Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries. c) Prevent unintentional starting. Ensure the switch is in the o󰀨-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your nger on the switch or energising power tools that have the switch on invites accidents. d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. used. The equipment is allowed to be used only for its pre- scribed purpose. Any other use is deemed to be a case of misuse. The user/operator and not the man- ufacturer will be liable for any damage or injuries of any kind resulting from such misuse. Please note that our equipment has not been de- signed for use in commercial, trade or industrial applica- tions. Our warranty will be voided if the equipment is used in commercial, trade or industrial businesses or for equivalent purposes. Residual risks Even if you use this electric power tool in ac- cordance with instructions, certain residual risks cannot be rules 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.

5. Safety instructions

General power tool safety warnings m WARNING: Read all safety warnings, instruc- tions, illustrations and specications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, re and/or serious injury. Save all warnings and instructions for future ref- erence. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-oper- ated (cordless) power tool.

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents. b) Do not operate power tools in explosive at- mospheres, such as in the presence of am- mable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. c) Keep children and bystanders away while op- erating a power tool. Distractions can cause you to lose control. www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

parts. This will ensure that the safety of the power tool is maintained. m WARNING Danger due to electromagnetic eld This power tool generates an electromagnetic eld during operation. This eld can impair active or pas- sive medical implants under certain conditions. - In order to prevent the risk of serious or deadly injuries, we recommend that persons with medi- cal implants consult with their physician and the manufacturer of the medical implant prior to op- erating the power tool. m Safety advice relating specically to bench grinders

• Do not touch the mains lead if it becomes dam- aged or cut through while you are using the device. Pull the plug out of the mains socket immediately and have the device repaired by a suitably quali- ed person or at your service centre.

• Do not operate the device if it is damp and do not use it in a damp environment.

• If you use the device outdoors, always connect it through a residual current device (RCD) with a maximum trip current of 30 mA.If using an exten- sion lead, always use one that is approved for out- door use.

• If a dangerous situation arises, pull the mains plug immediately out of the mains socket.

• Always work with the mains lead leading away from the rear of the device.

• Dang er of re from ying sparks ! Grinding metal creates ying sparks. For this rea- son, always make sure that nobody is placed in any danger and that there are no inammable materials near the working area. m Warning! Noxious fumes! Working with harmful / noxious dusts represents a risk to the health of the person operating the device and to anyone near the work area.

• Wear protective glasses, hearing protec- tion, dust protection mask and protective gloves. Danger of burns! The workpiece gets hot during grinding. Never touch the part you are grinding. Allow the workpiece to cool su󰀩ciently rst. When grinding for longer periods, stop grinding from time to time and allow the work- piece to cool before continuing. Do not operate the device for continuous periods exceeding 30 minutes.

• The double grinding machine is intended for dry grinding of the surfaces of metal objects. The de- vice may only be used for dry grinding.

• Do not grind materials containing asbestos. As- bestos is a known carcinogen.

• Do not use damaged grinding wheels .

• Only use grinding wheels with details that corre- g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards. h) Do not let familiarity gained from frequent use of tools allow you to become complacent and ig- nore tool safety principles. A careless action can cause severe injury within a fraction of a second.

4. Power tool use and care

a) Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. b) Do not use the power tool if the switch does not turn it on and o󰀨. Any power tool that can- not be controlled with the switch is dangerous and must be repaired. c) Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjust- ments, changing accessories, or storing pow- er tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. d) Store idle power tools out of the reach of chil- dren. Do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users. e) Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may a󰀨ect the power tool’s operation. If dam- aged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc. in accordance with these instructions, tak- ing into account the working conditions and the work to be performed. Use of the power tool for operations di󰀨erent from those intended could result in a hazardous situation. h) Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

a) Have your power tool serviced by a qualied repair person using only identical replacement www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

Sound and vibration Sound and vibration values were measured in ac- cordance with EN 62841. Noise Sound power level L

95,8 dB(A) Uncertainty K wa/pA 3 dB(A) Wear ear-mu󰀨s. The impact of noise can cause damage to hearing. Total vibration values (vector sum of three directions) determined in accordance with EN 62841. Vibration emission value a

Warning! The speci ed vibration value was established in ac- cordance with a standardized testing method. It may change according to how the electric equipment is used and may exceed the speci ed value in excep- tional circumstances. The specied vibration value can be used to com- pare the equipment with other electric powertools. The specied vibration value can be used for initial assessment of a harmful e󰀨ect. Keep the noise emissions and vibrations to a minimum.

• Only use appliances which are in perfect workin- gorder.

• 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 o󰀨 when it is not in use.

• Wear protective gloves. Unpacking Danger of choking or su󰀨ocating The packaging material, packaging and transport safety devices are not children‘s toys. Plastic bags, foils and small parts can be swallowed and lead to choking. - Keep packaging material, packaging and trans- port safety devices away from children.

• Open the packaging and carefully remove the prod- uct.

• Remove the packaging material, packaging and transport safety devices (if applicable)..

• Check the completeness of the scope of delivery. The customer service must be notied immediately of any complaints. Later claims will not be recog- nised. spond with those given on the device rating plate. The circumferential speed should be equal to or greater than the value given on the device rating plate.

• Adjust the eye guard mounts (spark deectors) and the eye guards periodically so that wear on the grinding wheels can be evened out. Keep the gap as small as possible.

• Avoid contact with the moving grinding wheel.

• Never leave the device working unattended.

• Never use the device for a purpose for which it was not intended.

• Before you insert the mains plug into the socket, always check that the device is switched o󰀨.

• Always switch the device on before bringing the workpiece into contact with the grinding wheel. Af- ter grinding, lift o󰀨 the workpiece before switching the device o󰀨.

• Hold the workpiece rmly with both hands at all times when working.

• Always keep proper footing and balance.

• After you have nished grinding metal, allow the grinding wheel(s) to come to a standstill.

• When taking a break from your work, before car- rying out any tasks on the device itself and when you are not using the device, always pull the mains plug out of the mains socket.

• Handle the device carefully and treat it with re- spect. Always keep the device clean, dry and free of oil or grease.

• Remain alert at all times! Always watch what you are doing and proceed with caution. Do not use the device if you cannot concentrate or you are feeling unwell.

• Store grinding wheels in such a way that they are not subject to mechanical loads or damaging en- vironmental inuences.

Grinding wheel diameter 75 mm Polishing wheel diameter 75 mm Wheel thickness 20 mm Wheel hole diameter 10 mm Max. peripheral speed 50 m/s Protection class II Weight 3,1 kg Technical changes reserved! *S1: Continuous operation with constant load www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

grinding wheel (5) and the workpiece support (8) is as small as possible and certainly does not exceed 2 mm. • Adjust the workpiece supports (8) period- ically to compensate for wear on the dry grinding wheel (5). 7.5. Changing the wheels (Fig. 8-9)

• Remove the 3 screws (A) holding the side section of the safety hood (B) and remove the safety hood. Slacken the nut (D) (Important: The grinding wheel on the left is fastened with a lefthanded thread and the grinding wheel on the right with a right-hand- ed thread) by holding the nut of the grinding wheel mount on the opposite side.

• Then remove the ange (C) and replace the grind- ing wheel (5). To assemble, proceed in the reverse order. The grinding wheel is mounted with the help of a rag. Mount the ange (C) and the nut (D) on the shaft and hold steady with the help of a rag when you tighten the nut (D).

7.6 Installing the exible shaft (Fig. 10)

• Insert the internal axle (a) of the exible shaft (12) into the guide shaft of the equipment.

• Secure the fastening nut of the exible shaft to the equipment thread by hand (left-hand thread). Important! When you work with the exible shaft (12), the safety glass (2) must be placed right up against the workpiece support (8) in order to prevent uncon- trolled touching of the wheels.

7.7 Inserting the various tools into the exible

1. Press the supplied locking pin (13) into the hole

in the exible shaft (12) and turn the shaft until the pin latches in place.

2. Now undo the collet chuck nut.

3. Insert the required tool into the sleeve as far as

the stop and screw the collet chuck nut tight.

8.1 On/O󰀨 switch (1)

• To switch on the equipment set the On/O󰀨 switch

• Move the On/O󰀨 switch (1) to position 0 to switch

• o󰀨 the equipment. Important! When you are not working with the exible shaft (12), it is not allowed to be mounted on the equipment be- cause it could then y around out of control. After switching on, wait for the equipment to reach its maximum speed of rotation. Only then should you begin with the grinding.

• Check the scope of delivery for transport damage. The transport company must be notied immediate- ly of any complaints. Later claims will not be recog- nised.

• Keep the packaging until the end of the warranty period.

• Read through the operating manual completely.

• Only use original spare parts or accessories. Origi- nal spare parts or accessories can be obtained from your dealer.

• Check that the data on the type plate matches with the mains power data.

7. Before putting the machine into

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 ad- justments to the equipment. Pull the power plug before doing any mainte- nance or assembly work on the equipment.

• The machine must be set up so that it stands rm- ly, i.e. it must be securely screwed to a work bench or similar.

• All covers and safety devices have to be properly tted before the equipment is switched on.

• The grinding and polishing wheel must rotat freely.

• Check that the voltage on the rating plate is the same as your supply voltage before you connect the equi ment to the power supply.

7.1 Fitting the spark re ector (Fig. 2-4 / Item 3)

Fit the spark re ector (3) to the double wheel grinder using the adjusting screw (10).

7.2 Adjusting the spark re ector (Fig. 5 / Item 3)

• Adjust the spark deector (3) using the adjusting screw (10) so that the distance between the dry grinding wheel (5) and the spark deector (3) is as small as possible and certainly does not ex- ceed 2 mm.

• Adjust the spark deector (3) periodically to com- pensate for wear on the wheel.

7.3 Fitting the workpiece supports (Fig. 6 / Item 8)

Secure the workpiece supports (8) to the double wheel grinder using the star screw (7).

7.4 Adjusting the workpiece supports (Fig. 7 /

• Adjust the workpiece supports (8) using the star screws (7) so that the distance between the dry www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

Electrical connection The electrical motor installed is connected and ready for operation. The connection complies with the appli- cable VDE and DIN provisions. The customer‘s mains connection as well as the extension cables used must also comply with these regulations. Damaged electrical connection cable The insulation on electrical connection cables is often damaged. This may have the following causes:

• Pressure points, where connection cables are passed through windows or doors

• Kinks where the connection cable has been improp- erly fastened or routed

• Places where the connection cables have been cut due to being driven over

• Insulation damage due to being ripped out of the wall outlet

• Cracks due to the insulation ageing Such damaged electrical connection cables must not be used and are life-threatening due to the insulation damage. Check the electrical connection cables for damage regularly. Ensure that the connection cables are dis- connected from electrical power when checking for damage. Electrical connection cables must comply with the ap- plicable VDE and DIN provisions. Only use connec- tion cables of the same designation. The printing of the type designation on the connection cable is mandatory. Connections and repair work on the electrical equip- ment may only be carried out by electricians. If the power cord of this device is damaged, it must be replaced by the manufacturer, their service depart- ment or a similarly qualied person to avoid dangers. AC motor

• The mains voltage must be 220 - 240 V~.

• Extension cables up to 25 m long must have a cross-section of 1.5 mm².

• Extension cables over 25 m long must have a cross-section of 2.5 mm². Connections and repair work on the electrical equip- ment may only be carried out by electricians. Please provide the following information in the event of any enquiries:

• Type of current for the motor

• Data of machine type plate

• Data of motor type plate 8.2. Speed selector (Fig. 1) The required speed can be set with the speed con- trol (11).

8.2.1 Speed of the exible shaft

The correct speed depends on the tool used and the type of material being processed. 8.3. Information on speed settings

• Small cutters/grinding pins: High speed

• Large cutters/grinding pins: Low speed 8.4. Work practice

• Exert only moderate pressure on the workpiece so that it can be machined at constant speed.

• Instead of accelerating your work, high pressure will cause the drive unit to slow down and even stop, thus overloading the motor.

• For your own safety, it is essential to secure small workpieces with a screw clamp or vise.

• Precision work/engraving: hold the drive unit like a pen.

• Rough work: hold the drive unit like the handle of a hammer.

• Place the workpiece onto the workpiece support (8) and slowly guide the workpiece towards the grinding wheel (5) at the desired angle to the point where workpiece and grinding wheel make con- tact.

• Move the workpiece slightly back and forth to pro- duce an optimal grinding result. This way the grind- ing wheel (5) will be evenly worn. Allow the work- piece to cool down occasionally. Important! If the grinding wheel becomes jammed during oper- ation, remove the workpiece and wait until the tool reaches its top speed again.

• Apply a thin coating of polishing paste to the grind- ing surface of the polishing wheel (6) (Fig. 18/ Item 3).

• Press on the workpiece in the polishing direction and move back and forth from left to right in a pen- dulum action.

• Always carry out polishing work in the direction of rotation of the polishing wheel (6). Important! Polishing in the opposite direction to the direction of rotation of the polishing wheels can cause damage to the polishing wheels, which in turn can result in injuries. www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

11.3. Accessories (Fig. 14) l Grinding pin (nely granulated) m Grinding pin (cylindrical ne) n Grinding pin (cone ne) o Grinding pin (cylindrical nely granulated) p Grinding pin(very nely granulated) 11.4. Accessories (Fig. 15) q Grinding pin (truss head, rough) r Grinding pin(truss head small, rough) s Grinding pin (cone rough) t Grinding pin (Round rough) u Grinding pin (Round small, rough) v Grinding pin (truss head middle, rough) 11.5. Accessories (Fig. 16) E Trapezebrush small F Trapezebrush large G Roundbrush H Trapezebrush large brass I Roundbrush brass J Trapezebrush small brass 11.6. Accessories (Fig. 17) K Grinding wheel insertion L Screw insertion M Grinding cylinder for grinding roller small N Grinding cylinder for grinding roller large 11.7. Accessories (Fig. 18) O Felt polishing cone P Felt polishing wheel (small) Q Felt polishing wheel (large) R Grinding stone S Polishing paste 11.8. Accessories (Fig. 19) N Clamping sleeve 2.0-3.2 mm

12. Disposal and recycling

The equipment is supplied in packaging to prevent it from being damaged in transit. This packaging is raw material and can thus be used again or can be reintegrated into the raw material cycle. The device and its accessories are made of di󰀨erent materials, such as metals and plastics. Take defective components to special waste disposal sites. Check with your specialist dealer or municipal administration!

9. Cleaning, maintenance

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

• 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 immedi- ately each time you have nished 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. The ingress of water into an electric tool increases the risk of an electric shock.

There are no parts inside the equipment which re- quire additional maintenance. Service information Please note that the following parts of this product are subject to normal or natural wear and that the fol- lowing parts are therefore also required for use as consumables. Wear parts*: grinding medium, Carbon brushes, sharpening wheel, angle gauge, v-belt

• Not necessarily included in the scope of delivery!

Store the equipment and accessories out of chil- dren’s reach in a dark and dry place at above freez- ing temperature. The ideal storage temperature is between 5 and 30 °C. Store the electric tool in its original packaging.

Old devices must not be disposed of with house- hold waste! This symbol indicates that this product must not be disposed of together with domestic waste in compliance with the Directive (2012/19/EU) pertaining to waste electrical and electronic equipment (WEEE). This product must be disposed of at a designated col- lection point. This can occur, for example, by handing it in at an authorised collecting point for the recycling of waste electrical and electronic equipment. Improper han- dling of waste equipment may have negative conse- quences for the environment and human health due to potentially hazardous substances that are often contained in electrical and electronic equipment. By properly disposing of this product, you are also con- tributing to the e󰀨ective use of natural resources. You can obtain information on collection points for waste equipment from your municipal administration, public waste disposal authority, an authorised body for the disposal of waste electrical and electronic equipment or your waste disposal company. www.scheppach.com / [e-mail] / +(49)-08223-4002-99 / +(49)-08223-4002-58

7.3 Fitting the workpiece supports (Fig. 6 / Item 8)

Secure the workpiece supports (8) to the double wheel grinder using the star screw (7).

7.7 Diverse gereedschappen in de buigzame as