SCHEPPACH HG34 Doppelschleifer 230V 50Hz 120W Instruction Manual

: June 5, 2024
: Scheppach

Table of Contents

Explanation of the symbols on the equipment
Introduction
- MANUFACTURER
Layout and items supplied (Fig. 1)
Scope of delivery
Proper use
Safety instructions
- Safety advice relating specifically to bench grinders
Technical data
Before putting the machine into operation
- Fitting the spark reflector (Fig. 2-4 / Item 3)
- Adjusting the spark reflector (Fig. 5 / Item 3)
- Fitting the workpiece supports (Fig. 6 / Item 8)
- Adjusting the workpiece supports (Fig. 7 / Item 8)
- Changing the wheels (Fig. 8-9)
- Installing the flexible shaft (Fig. 10)
- Inserting the various tools into the flexible shaft (Fig. 11)
Operation
- On/Off switch (1)
- Speed selector (Fig. 1)
- Information on speed settings
- Work practice
- Grinding
- Polishing
Cleaning, maintenance
- Cleaning
- Maintenance
Accessories
- Accessories (Fig. 12)
- Accessories (Fig. 13)
- Accessories (Fig. 14)
- Accessories(Fig. 15)
- Accessories (Fig. 16)
- Accessories (Fig. 17)
- Accessories (Fig. 18)
- Accessories (Fig. 19)
Replacing the power cable
Disposal and recycling
Storage
Exploded View
Warranty
Declaration of Conformity
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

SCHEPPACH HG34 Doppelschleifer 230V 50Hz 120W

| 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

| Caution – Read the operating instructions to reduce the risk of inquiry
---|---
| Wear ear-muff 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 emitted by the device can cause loss of sight.

Introduction

MANUFACTURER

scheppach
Fabrikation von Holzbearbeitungsmaschine 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

Improper handling,
Non-compliance of the operating instructions
Repairs by third parties, not by authorized service technicians,
Installation and replacement of non-original spare parts,
Application other than specified,
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:
Read through the complete text in the operating instructions before installing and commissioning the device.
The operating instructions are intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations. The operating instructions contain important information on how to operate the machine safely, professionally and economically, how to avoid danger, costly repairs, reduce downtimes and how to increase reliability and service life of the machine.
In addition to the safety regulations in the operating instructions, you have to meet the applicable regulations 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 machine and who are informed about the associated dangers. The minimum age requirement must be complied with.

Layout and items supplied (Fig. 1)

On/Off switch
Safety window
Spark defl ector
Safety hood
Grinding wheel
Polishing wheel
Workpiece support star screw
Workpiece support
Mounting holes
Spark defl ector adjusting screw
Speed controller
Flexible shaft
Locking pin
Wrench

Scope of delivery

Open the packaging and remove the device carefully.
Remove the packaging material as well as the pack aging 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!

Double-wheel grinder
Safety glass with spark deflector
Workpiece support
Flexible shaft
100-piece aAccessories
Original operating instructions
Safety instructions

Proper use

The double-wheel grinder is a combination tool for the grinding and polishing of metals, plastics and other materials using the appropriate grinding wheels.

The flexible shaft is designed for the grinding, deburring, polishing, engraving, cutting, milling and cleaning of wood, metal and plastic in modelmaking, 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 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 of parts from out of damaged grinding wheels.
Catapulting of workpieces and parts of workpieces.
Damage to hearing if essential ear-muffs are not used.

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.

Residual risks
Even if you use this electric power tool in accordance 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.

Safety instructions

CAUTION! In order to protect yourself from the danger of electric shock, injury or fire when using electrical power tools, please observe the following basic safety precautions. Read all these requirements before you use the electrical power tool, and keep the safety advice in a safe place.

Working safely

Keep your working area clean and tidy.
• A disorderly working area can lead to accidents.
Be aware of the effects of the environment.
• Do not leave electrical power tools out in the rain.
• Do not use electrical power tools in moist or wet sur- roundings.
• Ensure that your working area is well lit.
• Do not use electrical power tools in areas where there is risk of fire or explosion.
Protect yourself from electric shock.
• Avoid touching earthed objects such as pipes, heating radiators, ovens or refrigerators with parts of your body. .
Keep other people at a safe distance.
• Do not allow other people, in particular children, to touch the electrical power tool or the mains lead. Keep them away from your working area.
Store currently unused electrical power tools in a safe place.
• When not being used electrical power tools should be stored in dry conditions in a high or enclosed place, out of reach of children.
Do not overload your electrical power tool.
• By keeping within the specified working range of the tool you will work more safely and achieve a better result.
Use the right electrical power tool for the task.
• Do not use low-output devices for heavy tasks.
• Do not use an electrical power tool for purposes for which it was not intended. For example, do not use a hand operated circular saw for trimming tree branches or cutting logs.
Wear suitable clothing.
• Do not wear loose-fitting clothing or jewellery. They could become caught on moving parts.
• We recommend that you wear anti-slip footwear when working outdoors.
• If you have long hair, wear a hair net.
Use personal protective equipment.
• Wear protective glasses.
• Wear a dust mask if your work generates dust.
Attaching the vacuum dust extraction device
• Where there are connection points provided for vacuum dust extraction please ensure that the connections are made and used properly.
Do not use the mains lead for purposes for which it was not intended.
• Do not use the mains lead to pull the plug out of the mains socket. • Protect the mains lead from heat, oil and sharp edges.
Securely support the workpiece.
• Use clamps or a vice to grip the workpiece firmly. This is much safer than holding it with your hand.
Avoid placing your body in an unnatural position.
• Keep proper footing and balance at all times.
Look after your tools carefully.
• Keep cutting tools sharp and clean.This way you will work more safely and achieve better results.
• Follow the advice on tool lubrication and co sumables replacement.
• Check the condition of the mains lead on your electrical power tool regularly and have any damage repaired by a competent specialist.
• Check the condition of extension leads regularly and replace them if they are damaged.
• Keep handles and hand grips clean, dry and free of oil and grease.
Pull the mains plug out of the mains socket.
• Do this if the electrical power tool is not being used,before carrying out maintenance tasks on the electrical power tool and whenever you are changing inserted tools, e.g. saw blades, drills or router bits.
Make sure that no spanners, keys etc. are left attached.
• Check before switching on that all spanners, keys and setting tools have been removed.
Avoid unintentionally starting up the device.
• Check that the ** switch is set to OFF on the device
•** when the mains plug is inserted into the mains socket.
Using an extension lead for working outdoors.
• When working outside, always use an approved and appropriately labelled extension lead.
Remain alert.
• Watch what you are doing. Proceed with caution.Do not use electrical power tools if you cannot concentrate.
Check the electrical power tool for damage.
• Before the electrical power tool is used, carefully check the safety equipment and any slightly damaged parts to see that they are still working properly.
• Check that all moving parts on the tool are working properly, can move freely and are not damaged. All parts must be correctly attached and fulfil all the requirements necessary to allow the electrical power tool to operate properly.
• Damaged safety equipment and components must be properly repaired or replaced at a competent electrical equipment repair centre unless otherwise indicated in the operating instructions.
• Damaged switches must be replaced at a Customer Service Centre.
• Never use an electrical power tool that cannot be switched on and off properly.
CAUTION!
• The use of inserted tools and accessories other than those recommended by the manufacturer could lead to you being injured.
Have your electrical power tool repaired at an electrical equipment repair specialist.
• This electrical power tool complies with the relevant safety regulations. Repairs may only be carried out by a specialist electrical repair centre using original spare parts, otherwise injury could occur to the user.

Warning! This electric tool generates an electromagnetic field during operation. This field can impair active or passive medical implants under certain conditions. In order to prevent the risk of serious or deadly injuries, we recommend that persons with medical implants consult with their physician and the manufacturer of the medical implant prior to operating the electric tool.

Safety advice relating specifically to bench grinders

Do not touch the mains lead if it becomes damaged 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 qualified 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 extension lead,always use one that is approved for outdoor 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.
Danger of fire from flying sparks !

Grinding metal creates flying sparks. For this reason,always make sure that nobody is placed in any danger and that there are no inflammable materials near the working area.
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 protection, dust protection mask and protective gloves.
Dang er of burns!

The workpiece gets hot during grinding. Never touch the part you are grinding. Allow the workpiece to cool sufficiently first. When grinding for longer periods, stop grinding from time to time and allow the workpiece 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 device may only be used for dry grinding.
Do not grind materials containing asbestos. Asbestos is a known carcinogen.
Do not use damaged grinding wheels .
Only use grinding wheels with details that corr spond with those given on the device ratin 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 deflectors) 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, al- ways check that the device is switched off.
Always switch the device on before bringing the work piece into contact with the grinding wheel. After grinding, lift off the workpiece before switching the device off.
Hold the workpiece firmly with both hands at all times when working.
Always keep proper footing and balance.
After you have finished grinding metal, allow the grinding wheel(s) to come to a standstill.
When taking a break from your work, before carrying 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 respect. 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 environmental influences.

Technical data

HG34

Sound and vibration
Sound and vibration values were measured in accordance with EN 61029.

LpA sound pressure level ………………… 75,8 dB(A)
KpA uncertainty ………………………………………3 dB
LWA sound power level ………………….. 88,7 dB(A)
KWA uncertainty ………………………………………3 dB
Wear ear-muffs.
The impact of noise can cause damage to hearing.
Total vibration values (vector sum of three directions) determined in accordance with EN 61029.
Vibration emission value ah 2.5 m/s2
K uncertainty = 1.5 m/s2

Warning!
The specifi ed vibration value was established in accordance with a standardized testing method. It may change according to how the electric equipment is used and may exceed the specifi ed value in exceptional circumstances.

The specified vibration value can be used to compare the equipment with other electric powertools.

The specified vibration value can be used for initial assessment of a harmful effect.

Keep the noise emissions and vibrations 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 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 adjustments to the equipment.

Pull the power plug before doing any maintenance or assembly work on 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.
All covers and safety devices have to be properly fitted 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.

Fitting the spark reflector (Fig. 2-4 / Item 3)

**

**Fit the spark reflector (3) to the double wheel grinder using the adjusting screw (10).

Adjusting the spark reflector (Fig. 5 / Item 3)

Adjust the spark deflector (3) using the adjusting screw (10) so that the distance between the dry grinding wheel (5) and the spark deflector (3) is as small as possible and certainly does not exceed 2 mm.
Adjust the spark deflector (3) periodically to compensate for wear on the wheel.

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

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

Adjusting the workpiece supports (Fig. 7 / Item 8)

Adjust the workpiece supports (8) using the star screws (7) so that the distance between the dry 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) periodically to compensate for wear on the dry grinding wheel (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-handed thread) by holding the nut of the grinding wheel mount on the opposite side.
Then remove the fl ange (C) and replace the grinding wheel (5). To assemble, proceed in the reverse order. The grinding wheel is mounted with the help of a rag. Mount the fl ange (C) and the nut (D) on the shaft and hold steady with the help of a rag when you tighten the nut (D).

Installing the flexible shaft (Fig. 10)

Insert the internal axle (a) of the flexible shaft (12) into the guide shaft of the equipment.
Secure the fastening nut of the flexible shaft to the equipment thread by hand (left-hand thread).

Important!
When you work with the flexible shaft (12), the safety glass (2) must be placed right up against the workpiece support (8) in order to prevent uncontrolled touching of the wheels.

Inserting the various tools into the flexible shaft (Fig. 11)

Press the supplied locking pin (13) into the hole in the flexible shaft (12) and turn the shaft until the pin latches in place.
Now undo the collet chuck nut.
Insert the required tool into the sleeve as far as the stop and screw the collet chuck nut tight.

Operation

On/Off switch (1)

To switch on the equipment set the On/Off switch (1) to position I.
Move the On/Off switch (1) to position 0 to switch off the equipment.

Important!
When you are not working with the flexible shaft (12), it is not allowed to be mounted on the equipment because it could then fly 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.

Speed selector (Fig. 1)

The required speed can be set with the speed control (11).

Speed of the flexible shaft

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

Information on speed settings

Small cutters/grinding pins: High speed
Large cutters/grinding pins: Low speed

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.

Grinding

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 contact.
Move the workpiece slightly back and forth to produce an optimal grinding result. This way the grinding wheel (5) will be evenly worn. Allow the workpiece to cool down occasionally.

Important!
If the grinding wheel becomes jammed during operation, remove the workpiece and wait until the tool reaches its top speed again.

Polishing

Apply a thin coating of polishing paste to the grinding 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 pendulum 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.

Cleaning, 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. The ingress of water into an electric tool increases the risk of an electric shock.

Maintenance

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

Service information
Please note that the following parts of this product are subject to normal or natural wear and that the following 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!

Accessories

Accessories (Fig. 12)

b Cutting-off wheel
c Grinding roller (large)
d Grinding belt (small)
e Grinding wheel

Accessories (Fig. 13)

f Molding cutter (trapeze)
g Molding cutter(ball-shaped)
h Molding cutter(cone)
i Metal grinding pin (cylindrical)\
j Metal grinding pin (cone)
k Metal grinding pin (ball-shaped)

Accessories (Fig. 14)

l Grinding pin (finely granulated)
m Grinding pin (cylindrical fine)
n Grinding pin (cone fine)
o Grinding pin (cylindrical finely granulated)
p Grinding pin(very finely granulated)

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)

Accessories (Fig. 16)

E Trapezebrush small
F Trapezebrush large
G Roundbrush
H Trapezebrush large brass
I Roundbrush brass
J Trapezebrush small brass

Accessories (Fig. 17)

K Grinding wheel insertion
L Screw insertion
M Grinding cylinder for grinding roller small
N Grinding cylinder for grinding roller large

Accessories (Fig. 18)

O Felt polishing cone
P Felt polishing wheel (small)
Q Felt polishing wheel (large)
R Grinding stone
S Polishing paste

Accessories (Fig. 19)

N Clamping sleeve 2.0-3.2 mm

Replacing the power cable

If the power cable for this equipment is damaged, it must be replaced by the manufacturer or its aftersales service or similarly trained personnel to avoid danger.

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.

Storage

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

Exploded View

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.