Trotec PBGS 10-120 User manual

TRT-BA-PBGS10-120-TC220311TTRT01-001-EN
PBGS 10-120
EN
ORIGINAL INSTRUCTIONS
BENCH GRINDING MACHINE

2 EN
bench grinding machine PBGS 10-120
Table of contents
Notes regarding the instructions ..........................................2
Safety .....................................................................................3
Information about the device..............................................10
Transport and storage.........................................................12
Start-up................................................................................13
Operation .............................................................................19
Errors and faults..................................................................20
Maintenance ........................................................................21
Disposal ...............................................................................23
Declaration of conformity ...................................................23
Notes regarding the instructions
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
Warning of sharp object
This symbol indicates dangers to the life and health of
persons due to pointed objects.
Warning of hand injuries
This symbol indicates dangers to the health of persons
due to hand injuries.
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
instructions must be observed.
Wear hearing protection
Information marked with this symbol indicates that you
should wear hearing protection.
Wear safety glasses
Information marked with this symbol indicates that you
should wear eye protection.
Wear a protective mask
Information marked with this symbol indicates that you
should wear a protective mask.
Wear protective clothing
Information marked with this symbol indicates that you
should wear protective clothing.
Wear protective gloves
Information marked with this symbol indicates that you
should wear protective gloves.
Warning of defective sanding discs!
Information marked with this symbol indicates that
defective sanding discs must not be used.
You can download the current version of the instructions via the
following link:
PBGS 10-120
https://hub.trotec.com/?id=46396

EN 3
bench grinding machine PBGS 10-120
Safety
General Power Tool Safety Warnings
Warning
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.
Save all warnings and instructions for future
reference.
The term power tool in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
power tool.
General Power Tool Safety Warnings– Work area
safety
•Keep work area clean and well lit. Clutter or dark areas
invite accidents.
•Do not operate power tools in explosive atmosphere,
such as in the presence of flammable liquids, gases or
dust. Power tools create sparks which may ignite the dust
or fumes.
•Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
General Power Tool Safety Warnings– Electrical
safety
•Power tool plugs must match the outlet. Never modify
the plug in any way. Do not use any adapter plugs with
earthed (grounded) power tools. Unmodified plugs and
matching outlets will reduce risk of electric shock.
•Avoid body contact with earthed or grounded surfaces,
such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body is
earthed or grounded.
•Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
•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 increase the risk of electric shock.
•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.
•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.
General Power Tool Safety Warnings– Personal
safety
•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 influence of
drugs, alcohol or medication. A moment of inattention
while operating power tools may result in serious personal
injury.
•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.
•Prevent unintentional starting. Ensure the switch is in
the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energising power tools that have the switch on invites
accidents.
•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.
•Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
•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.
•Do not let familiarity gained from frequent use of tools
allow you to become complacent and ignore tool
safety principles. A careless action can cause severe
injury within a fraction of a second.

4 EN
bench grinding machine PBGS 10-120
General Power Tool Safety Warnings– Power tool
use and care
•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.
•Do not use the power tool if the switch does not turn it
on and off. Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
•Disconnect the plug from the power source and/or
remove the battery pack, if detachable, from the power
tool before making any adjustments, changing
accessories, or storing power tools. Such preventive
safety measures reduce the risk of starting the power tool
accidentally.
•Store idle power tools out of the reach of children and
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.
•Maintain power tools and accessories. Check for
misalignment or binding of moving parts, breakage of
parts and any other condition that may affect the
power tool's operation. If damaged, have the power
tool repaired before use. Many accidents are caused by
poorly maintained power tools.
•Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to
bind and are easier to control.
•Use the power tool, accessories and tool bits etc. in
accordance with these instructions, taking into
account the working conditions and the work to be
performed. Use of the power tool for operations different
from those intended could result in a hazardous situation.
•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.
General Power Tool Safety Warnings– Service
•Have your power tool serviced by a qualified repair
person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
Safety instructions for table sanders
•Do not use a damaged accessory. Before each use
inspect the accessory such as sanding discs for chips
and cracks and wire brushes for loose or cracked
wires. 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 1min. Damaged
accessories will normally break apart during this test time.
•Only use sanding discs with a speed level that is
correspondingly equal to or higher than the device’s
idle speed. Never use defective sanding discs. When
having replaced the sanding discs, carry out a test run of
at least 1minute. Switch the device off immediately if the
sanding disc is running out of centre, considerable
vibrations occur or abnormal noises can be heard.
•Never use the device without a protective cover /
spark deflector.
•Do not use any bushings or adapters to adapt sanding
discs with a large hole.
•Do not use any saw blades as accessories in the
device.
•Do not use any bushings or adapters to adapt sanding
discs with a large hole.
•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.
•Be aware that wire bristles are thrown by the wire
brushes even during ordinary operation. Do not
overstress the wires by applying excessive load to the
brush. The wire bristles can easily penetrate light clothing
and/or skin.
•Never grind on the lateral surfaces of the sanding
discs. Grinding on the lateral surfaces can make the
sanding discs crack up and fly apart.

EN 5
bench grinding machine PBGS 10-120
Safety Warnings Common for Grinding, Sanding,
Wire Brushing, Polishing or Abrasive Cutting-Off
Operations
•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.
•Abrasive wheels, abrasive rolls or other accessories
must fit exactly on the grinder spindle or collet chuck
of your power tool. Accessories that do not precisely
match the holder of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
•Wheels, abrasive cylinders, cutting tools or other
accessories mounted on a mandrel must be fully
inserted into the collet chuck or jaw chuck. The
“protrusion” or the exposed part of the mandrel
between the abrasive accessory and the collet chuck
or jaw chuck must be minimal. If the mandrel is not
sufficiently tensioned or the abrasive accessory protrudes
too far forward, the accessory may become loose and be
ejected at high speed.
•Do not use a damaged accessory. Before each use
inspect the accessory such as abrasive wheels for
chips and cracks, abrasive rolls for cracks, tear or
excess wear, wire brushes for loose or cracked wires.
If power tool or accessory is dropped, 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 filtrating 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.
•Always hold onto the power tool firmly when starting
it. When running up to full speed, the reaction torque of
the motor can cause the power tool to twist.
•If possible, use clamps to hold the workpiece in place.
Never hold a small workpiece in one hand and the
power tool in the other while using it. Tightly clamping
small workpieces allows you to have both hands free and
to have better control of the power tool. When removing
round workpieces such as wooden dowels, bar stock or
pipes, they tend to roll away, causing the accessory to jam
and be catapulted towards you.
•Keep the connecting cable away from spinning
accessories. If you lose control of the device, the cord
may be cut or snagged and your hand or arm may be
pulled into the spinning accessories.
•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.

6 EN
bench grinding machine PBGS 10-120
•After changing accessories or making adjustments to
the device, firmly tighten the collet chuck nut, the jaw
chuck or other fixing elements. Loose fixing elements
can shift unexpectedly and cause loss of control; and
rotating components that are not attached will be forcefully
ejected.
•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
A kickback is a sudden reaction to a pinched or snagged
rotating wheel, abrasive wheel, abrasive belt, brush or any other
accessory. Pinching or jamming causes rapid stalling of the
rotating accessory. This will accelerate an uncontrolled power
tool towards the direction opposite of the accessory’s rotation.
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. Kickback 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. The operator can control kickback forces, if proper
precautions are taken.
•Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
•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. The result would be a 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.
•Always move the accessory into the material in the
same direction in which the cutting edge leaves the
material (corresponds to the same direction in which
the chips are ejected). Guiding the power tool in the
wrong direction causes the cutting edge of the accessory
to climb out of the workpiece, which will pull the power
tool in that feed direction.
•Always clamp the workpiece firmly when using rotary
files, cutting wheels, high-speed milling tools or
carbide milling tools. If these accessories become only
slightly jammed in the groove, they will get caught and
may cause a kickback. If a cutting wheel gets caught, it
usually breaks. If rotary files, high-speed milling tools or
carbide milling tools get caught, the tool insert may be
ejected from the groove and cause loss of control of the
power tool.

EN 7
bench grinding machine PBGS 10-120
Safety Warnings Specific for Grinding and Abrasive
Cutting-Off Operations
•Only use abrasives approved for your power tool and
for the recommended applications. Example: do not
grind with the side of cut-off wheel. Cutting discs are
designed for material removal using the edge of the disc.
Exerting force to the sides of these abrasives may break
them.
•For conical and straight abrasive pencils with a thread,
only use undamaged mandrels of the correct size and
length without an undercut on the shoulder. Suitable
mandrels reduce the risk of breakage.
•Do not "jam" the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive depth
of cut. Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel breakage.
• Do not position your hand in line with and behind the
rotating cutting wheel. When the wheel, at the point of
operation, is moving away from your hand, the possible
kickback may propel the spinning wheel and the power tool
directly at you.
•When wheel is binding or when interrupting a cut for
any reason, switch off the power tool and hold the
power tool motionless until the wheel comes to a
complete stop. Never attempt to remove the cut-off
wheel from the cut while the wheel is in motion
otherwise kickback may occur. Investigate and take
corrective action to eliminate the cause of wheel binding.
•Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
•Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the line
of cut and near the edge of the workpiece on both sides of
the wheel.
•Use extra caution when making a pocket cut into
existing walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects
that can cause kickback.
Safety Warnings Specific for Wire Brushing
Operations
•Be aware that wire bristles are thrown by the brush
even during ordinary operation. Do not overstress the
wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
•Let brushes run at operating speed for at least one
minute before starting work. Make sure that during
this time no other person is standing in line with the
brush. During the start-up time, loose wire bristles may
fly.
•Direct the rotating wire brush away from yourself.
When working with these brushes, small particles and tiny
bits of wire may fly at high speed and penetrate the skin.
Additional safety instructions for portable table
sanders
•Before every application, ensure that the sanding discs
are free from defects. Also carry out a ring test for
detecting cracks. To do so, lightly strike the disc on the
right-hand and left-hand side from the vertical centre line
using a non-metallic hammer. The light striking should
produce a bright, bell-like sound. Do not use the disc if the
sound is dull.
•Adjust the spark deflectors at regular intervals in order
to compensate for wear of the disc, keeping the
distance between the spark deflector and the disc as
small as possible and in no case letting it exceed
2mm.
Replace the sanding disc if the spark deflector can no
longer be adjusted to the distance required.
• Only use the power tool with accessories that are mounted
on both spindles. In this way, contact with the rotating
spindle is prevented.
• Always use the protective cover, the workpiece support,
the protective screens and the spark deflectors as required
by the accessory.
• Replace damaged or strongly furrowed sanding discs.
• When transporting the table sander, lift it at the housing or
at the two protective covers.
• Adjust the workpiece supports so that the angle between
the workpiece support and the accessory is always greater
than 85°.
• Only use sanding discs with a thickness of 20mm and a
hole diameter of 10mm.
• Always provide for stable and secure conditions for the
table sander when you mount it on a workbench or a
similar surface.
• Ensure that the grinding functions are carried out safely.

8 EN
bench grinding machine PBGS 10-120
Intended use
Only use the device PBGS 10-120 for:
• grinding into wood or metal
• polishing
• sharpening tools, e.g. knives, scissors, chisels
In combination with the flexible shaft:
• Milling into wood or plastics
• For sawing and cutting
– Wood
– Plastics
– Non-ferrous metals
– Fixing elements
(e.g. screws, nails, clamps etc.)
• For sanding small, dry areas
• Engraving
– Metal
– Plastics
– Glass
– Ceramics
– Wood
– Leather
• Polishing
whilst adhering to the technical data.
We recommend using the power tool with original Trotec
accessories.
Foreseeable misuse
Do not use the device for:
• cutting up tiles
• sawing large screws or stainless steel
• Processing workpieces requiring a continuous water
supply
• drilling into concrete or natural stone
Only use the device in weatherproof surroundings.
Do not use the device in humid or wet rooms and surroundings.
The device is not suitable for commercial continuous use.
Any other use than the one described in the chapter "Intended
use" is regarded as reasonably foreseeable misuse.
Personnel qualifications
People who use this device must:
• have read and understood the instructions, especially the
Safety chapter.
Personal protective equipment
Wear hearing protection.
Excessive noise can lead to hearing loss.
Wear eye protection.
With it you protect your eyes from splintering, falling
and flying pieces which could cause injuries.
Wear a protective mask.
It saves you from inhaling harmful dusts generated
when processing workpieces.
Wear protective gloves.
They protect your hands from burns, crushing injuries
and skin abrasions.
Wear tight-fitting protective clothing.
This protects you from the draw-in and entanglement
hazard posed by rotating parts.
Wear safety boots.
They protect your feet from splintering, falling and
flying pieces which could cause injuries.
Residual risks
Warning of electrical voltage
Electric shock from insufficient insulation.
Check the device for damages and proper functioning
before each use.
If you notice damages, no longer use the device.
Do not use the device when the device or your hands
are damp or wet!
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning of electrical voltage
There is a risk of a short-circuit due to liquids
penetrating the housing!
Do not immerse the device and the accessories in
water. Make sure that no water or other liquids can
enter the housing.
Warning of hot surface
The insertion tool might still be hot after the
application. Burn hazard when touching the insertion
tool.
Do not touch the insertion tool bare-handed!
Wear protective gloves!

EN 9
bench grinding machine PBGS 10-120
Warning of hot surface
If the flexible shaft forms a loop or becomes kinked
during operation, the shaft can heat up and melt with
the hose. Ensure that the flexible shaft does not
become kinked or heated up and do not burn yourself.
Wear protective gloves!
Warning
Toxic dusts!
The harmful / toxic dusts produced during operation
pose of risk to the health of the operator and persons
in the vicinity.
Wear eye protection and a dust mask!
Warning
Do not process materials containing asbestos.
Asbestos is considered carcinogenic.
Warning
Risk of injuries caused by flying parts or bursting tool
heads.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Caution
Vibration emissions can cause a health hazard if the
device is used for an extended period of time or if it is
not properly handled and maintained.
Caution
Keep a sufficient distance from heat sources.
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Behaviour in the event of an emergency/ emergency
stop function
Emergency stop:
Removing the mains plug from the mains socket results in the
function of the device immediately stopping. In order to secure
the device against accidental switch-on, leave the mains plug
disconnected.
Behaviour in the event of an emergency:
1. Switch the device off.
2. In an emergency, disconnect the device from the mains
feed-in: Hold onto the mains plug while pulling the power
cable out of the mains socket.
3. Do not reconnect a defective device to the mains.

10 EN
bench grinding machine PBGS 10-120
Information about the device
Device description
The device PBGS 10-120 is a stationary sander for dry grinding
with a sanding disc (grain size120) and a polishing disc (grain
size400).
For material-compatible working, the nominal speed can be set
steplessly within a range of 0–11,500rpm at the setting wheel.
The highly flexible shaft supplied allows for the performance of
especially fine and detailed tasks in the fields of drilling, milling,
cutting, engraving or polishing. It is suited for activities like
model construction and the use in wood and metal processing
or for polishing jewellery.
The device furthermore offers spark protection with swivel-
mounted protective screens for safe working.
Device depiction
1
2
37
36
38
35
34
4
3
33
5
6
32
31 7
30 9
8
28 11
27
29
10
26 12
25
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24
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21
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20 19 18 17 1622

EN 11
bench grinding machine PBGS 10-120
No. Designation
1Machine polishing disc
2Connection thread for flexible shaft
3Lock nut for flexible shaft
4Flexible shaft
5Spark deflector
6Protective glass
7Wrench
8Sanding discs
9Cutting discs
10 Corundum grinding head (different types)
11 Aluminium oxide grinding head (different types)
12 Abrasive belts
13 Set of collet chucks
14 Polishing compound
15 Threaded screwM4 x 10 mm
16 Spring washerM4
17 Spring washerM5
18 Flat washerM4
19 Flat washerM5
20 Threaded nutM4
21 Threaded nutM5
22 Threaded nutM6
23 Threaded screwM5 x 45 mm
24 Grinding stone
25 Set of milling bits
26 Polishing attachments
27 Mandrel for abrasive belts
28 Mandrel for cutting discs/sanding discs
29 Mandrel for polishing attachments
30 Set of brass brushes
31 Set of cleaning brushes
32 Knurled screw
33 Workpiece supports
34 Tool holder
35 Handle of flexible shaft
36 Setting wheel for speed selection
37 On/off switch
38 Machine sanding disc
Scope of delivery
• 1x Device PBGS 10-120
• 1x Flexible shaft
• 2x Spark deflectors
• 2x Protective glasses
• 2x Workpiece supports
• 1x Wrench
• 12x Cutting discs 32 x 1 mm
• 40x Sanding discs 24 mm
• 5x Abrasive belts 13 mm, 15 mm
• 5x Abrasive belts 13 mm, 9 mm
• 5x Polishing attachments 7 mm x 25 mm
• 5x Polishing attachments 7 mm x 13 mm
• 5x Aluminium oxide grinding heads
• 5x Corundum grinding heads
• 5x Milling cutters (groove, ball head, bevel)
• 1x Grinding stone
• 3x Collet chucks (3.2mm/ 2.4mm/ 2.0mm/ 2.4mm/
3.2mm)
• 1 x Polishing paste
• 2x Mandrels for abrasive belts
• 2x Mandrels for cutting/sanding discs, polishing felt
• 3x Brass brushes
• 4x Cleaning brushes
• 1x Storage box
• 2x Knurled screws
• 2x Nuts M6
• 2x Nuts M5
• 4x Nuts M4
• 2x Threaded screws M5 x 45 mm
• 4x Threaded screws M4 x 10 mm
• 2x Flat washers M5
• 4x Flat washers M4
• 2x Spring washers M5
• 4x Spring washers M4
• 1x manual

12 EN
bench grinding machine PBGS 10-120
Technical data
Parameter Value
Model PBGS 10-120
Nominal voltage 230V/ 50Hz
Power consumption 120W
Nominal idle speedn00 - 11,500 rpm
Operating speed 45 m/s
Weight 2kg
Sanding disc diameter 75 mm
Hole diameter of the sanding disc 10mm
Sanding disc thickness 20mm
Sanding disc hardness grade M
Cable length 2 m
Protection class II (double insulation) /
Type of protection IPX0
Sound values in accordance with EN62841-1
Sound pressure level LpA 86 dB(A)
Sound power LWA 99 dB(A)
Uncertainty K 3 dB
Wear hearing protection.
Excessive noise can lead to hearing loss.
Notes relating to noise information:
• The noise emission values specified were measured by
means of a test procedure standardised in EN62841 and
can be consulted for the comparison of one power tool
with another.
• The noise emission values specified can also be used for
preliminary load assessment.
• The actual noise emission may differ from the stated
values during operation of the power tool. This depends on
how the power tool is used and especially on the type of
workpiece being processed. Try to keep the load caused
by noise emission at a minimum level. All parts of an
operating cycle must be taken into consideration for this
(e.g. times at which the power tool is switched off and
times when it is switched on but runs without load).
Transport and storage
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
Before transporting the device, observe the following:
• Switch off the device.
• Hold onto the mains plug while pulling the power cable out
of the mains socket.
• Disassemble the flexible shaft.
• Allow the device to cool down.
• When transporting the table sander, lift it at the housing or
at the two protective covers.
Storage
Before storing the device, observe the following:
• Switch off the device.
• Hold onto the mains plug while pulling the power cable out
of the mains socket.
• Disassemble the flexible shaft.
• Allow the device to cool down.
• Clean the device as described in the Maintenance chapter.
When the device is not being used, observe the following
storage conditions:
• dry and protected from frost and heat
• Ambient temperature below 45°C
• Protected from dust and direct sunlight
• Store the insert tools and other accessories in the storage
box.

EN 13
bench grinding machine PBGS 10-120
Start-up
Unpacking the device
• Take the device and the accessories out of the packaging.
Warning of electrical voltage
Electric shock from insufficient insulation.
Check the device for damages and proper functioning
before each use.
If you notice damages, no longer use the device.
Do not use the device when the device or your hands
are damp or wet!
• Check the contents for completeness and look for
damages.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
• Dispose of the packaging material according to the
national regulations.
Table assembly (optional)
Note
The screws and nuts required for the assembly are not
included in the scope of delivery.
1. Position the device on a suitable base (e.g. table or
workbench).
2. Mark the holes on the device base through the 4holes for
table assembly.
3. Remove the device and drill the holes into the base.
4. Insert the screws into the 4holes for table assembly on the
device base.
5. Screw the device to the base (e.g. table or workbench)
using 4screws and nuts.
Assembly of the workpiece supports
Note
Assembly of the workpiece supports(33) must be
carried out ensuring that the distance between the
sanding or polishing disc and the two workpiece
supports(33) is as small as possible. The distance may
amount to maximally 2mm. Make sure that the
workpiece supports(33) do not touch the sanding or
polishing disc. Adjust the distance of the workpiece
supports(33) to the sanding or polishing discs at
regular intervals, in order to balance out wear and tear
of the sanding or polishing discs.
The workpiece support(33) is not pre-assembled in the as-
delivered condition and has to be mounted on the device prior to
initial start-up.
1. Insert the nut(22) into the matching recess on the
mounting flange(39) of the workpiece support and hold it
in place with your finger.
2. Push the knurled screw(32) through the groove of the
workpiece support(33) and screw both items together
using the nut(22) on the mounting flange(39).
3. Adjust the workpiece support(33) so that the distance to
the sanding or polishing disc is less than 2mm. In doing
this, observe that the angle is always greater than 85°.
4. Repeat this assembly process on the other side of the
device.
32
22
39
33

14 EN
bench grinding machine PBGS 10-120
Assembly of the spark deflectors
The two spark deflectors(5) are possibly not pre-assembled in
the as-delivered condition and have to be mounted on the
device prior to initial start-up.
The distance to the sanding disc may amount to maximally
2mm. Adjust this distance at regular intervals to compensate
for wear and tear of the disc.
1. Place one spring washer(16) and one flat washer(18)
each on the two mounting screws(15).
2. Position the spark deflectors(5) on the mounting strap(40)
and put the two mounting screws(15) through the two
holes on the mounting strap(40).
3. Screw the two mounting screws(15) together with one
nut(20) each.
5
15
16
18
20
40
4. Repeat this assembly process on the other side of the
device.
Assembly of the protective glasses
The two protective glasses(6) for the two sanding discs are
possibly not pre-assembled in the as-delivered condition and
have to be mounted on the device prior to initial start-up.
1. Insert the protective glass(6) into the holding fixture at the
spark protection mechanism(5) and hold it in position.
2. Place the spring washer(17) and the flat washer(19) onto
the mounting screw(23) and screw the protective glass(6)
together with the nut(21).
6
23
21
17
19
3. When tightening the screws, make sure that the protective
glass(6) holds the position by itself, at the same time,
however, remaining flexible.
4. Repeat this assembly process on the other side of the
device.

EN 15
bench grinding machine PBGS 10-120
Using a flexible shaft
Note
Never actuate the spindle lock(42) while the tool is
running! This may damage the tool.
Info
Use the flexible shaft for tasks requiring fine and
precise guidance of the tool.
Warning of hot surface
Ensure that the flexible shaft does not form a loop or
become kinked during operation. There is a risk of the
shaft becoming hot and melting with the hose.
Do not touch the handle if it became hot. Risk of burns.
üThe device is switched off and the mains plug is
disconnected.
1. Place the lock nut(3) of the flexible shaft onto the
connection thread(2) on the device and ensure that the
square inner axis(41) of the flexible shaft engages with the
holding fixture of the flexible shaft(49).
2. Tighten the lock nut(3) in counter-clockwise direction.
3
2
41
49
Tool change
Wear protective gloves
Wear appropriate protective gloves when inserting or
exchanging tools.
Proceed as follows to clamp a tool on the handle(35) of the
flexible shaft:
üThe device is switched off and the mains plug is
disconnected.
1. In order to block the spindle, pull back the spindle lock(42)
on the handle(35) and hold the position.
2. Loosen the clamping nut(43) by means of the wrench(7)
by turning it in counter-clockwise direction.
3. Remove the tool from the tool holder(34), if any.
42
7
35
43
34
4. Insert the tool required into the tool holder(34).
5. Tighten the clamping nut(43) in clockwise direction using
the wrench(7).
6. Let go of the spindle lock(42).
7. Check the tool for tight fit.

16 EN
bench grinding machine PBGS 10-120
Using a tool with mandrel
Wear protective gloves
Wear appropriate protective gloves when inserting or
exchanging tools.
The following tools are mounted by means of a corresponding
mandrel:
• Polishing attachments(26)
• Cutting discs(9)
• Abrasive wheels(8)
• Abrasive belts(12)
To mount the tool on the mandrel, please proceed as follows:
Polishing attachments:
ü The device is switched off and the mains plug is
disconnected.
1. Insert the mandrel for polishing attachments(29) into the
device as described in the "Tool change” chapter.
2. In order to block the spindle, pull back the spindle lock(42)
on the handle(35) and hold the position.
3. Screw the polishing attachment(26) onto the thread of the
mandrel in clockwise direction and then let go of the
spindle lock(42) again.
26
29
Cutting discs/sanding discs:
üThe device is switched off and the mains plug is
disconnected.
1. Insert the mandrel for cutting discs/ sanding discs(28)
into the device as described in the "Tool change” chapter.
2. In order to block the spindle, pull back the spindle lock(42)
on the handle(35) and hold the position.
3. Unscrew the screw(45) from the mandrel by turning the
screw in counter-clockwise direction.
45
7
28
4. Place a cutting disc(9) or abrasive wheel(8) between the
two washers(46) onto the screw(45) and tighten it to the
mandrel again in clockwise direction.
46
5. Let go of the spindle lock(42).

EN 17
bench grinding machine PBGS 10-120
Abrasive belt:
üThe device is switched off and the mains plug is
disconnected.
1. Insert the mandrel for abrasive belts(27) into the device as
described in the "Tool change” chapter.
2. In order to block the spindle, pull back the spindle lock(42)
on the handle(35) and hold the position.
3. Turn the screw(45) on the mandrel in counter-clockwise
direction until it has a little backlash.
45
27
4. Place the abrasive belt(12) onto the rubberized holder and
tighten the screw(45) again in clockwise direction.
12
5. Let go of the spindle lock(42).
Replacing the collet chuck
Wear protective gloves
Wear appropriate protective gloves when inserting or
exchanging tools.
Note
If, for example, you would like to use a twist drill bit or
another tool with a different shank diameter than the
last one used, the collet chuck must be changed.
Please proceed as follows:
üThe device is switched off and the mains plug is
disconnected.
1. In order to block the spindle, pull back the spindle lock(42)
on the handle(35) and hold the position.
2. Unscrew the clamping nut(43) in counter-clockwise
direction using the wrench(7).
43
742
35
3. Remove the collet chuck(13) from the collet chuck
holder(44).
13
44

18 EN
bench grinding machine PBGS 10-120
4. Insert a collet chuck(13) matching the accessory you are
planning to use into the collet chuck holder(44) ein.
13
44
5. Screw the clamping nut(43) in clockwise direction onto
the collet chuck holder(44).
6. Let go of the spindle lock(42) again.
Speed selection
The required speed depends on the material and the operating
conditions and can be determined by way of field-testing. For
most tasks like grinding harder materials (e.g. wood or metal)
as well as cutting, grinding and engraving using the flexible
shaft, we recommend the highest speed level. Some materials
(certain plastics and soft metals), however, may be damaged by
the heat generated at a high speed and should therefore be
processed at a correspondingly lower speed.
The setting range covers the speed range (0-11,500rpm). You
can change the preselected speed level at any time.
1. Turn the setting wheel(36) in clockwise direction to
increase the speed.
2. Turn the setting wheel(36) in counter-clockwise direction
to reduce the speed.
36
Tips and notes for selecting the correct speed level when
using the sanding or polishing disc on the machine
• For grinding wood or metal, select a high speed level.
• For machining plastics or other materials with a low
melting point, select a low speed level.
Tips and notes for selecting the correct speed level when
using the flexible shaft
• Select a high speed level for cutting, forming, chamfering
or milling grooves in the wood, and for sanding or grinding
wood or metal.
• If you wish to cut plastics or other materials with a low
melting point, select a low speed level.
• For drilling into wood, select a low speed level, in order to
prevent the tool from being overheated
• For polishing, buffing and cleaning with a wire brush,
select the lowest speed level, in order to prevent the brush
from damage by bristles coming loose from the brush
holder.
• For milling or drilling into non-ferrous metals, e.g.:
aluminium, copper, lead, zinc alloys, select a low speed
level. Additionally use a cutting oil or another suitable
lubricant (not water) in order to prevent chips from settling
on the cutting edges of the tool, and to prevent the tool
from being overheated.
Connecting the power cable
• Insert the mains plug into a properly secured mains
socket.

EN 19
bench grinding machine PBGS 10-120
Operation
Tips and notes on handling the sanding or polishing disc on
the machine
• Ensure stable positioning and secure footing of the device.
To be on the safe side, you can fasten the device in an
appropriate place (see chapter Table assembly).
• Before every application, check the sanding disc and make
sure that it is not blocked.
• Before every application, ensure that the protective
glasses, spark deflectors and workpiece supports are
mounted properly.
• Before every application, make sure that you have selected
the correct speed level for the intended use. By adapting
the speed to the task you have planned and to the m to be
machined, better results can be obtained.
• Bear in mind that the workpiece will be strongly heated by
the sanding process. Therefore, allow the workpiece to
cool down in a water bath after the grinding process. Then
dry it thoroughly before you continue with its machining.
Tips and notes on handling the flexible shaft
General information:
• Check the tool in the tool holder for proper fit before every
application. The tool must be firmly locked in place in the
tool holder.
• Before every application, make sure that you have selected
the correct tool and the correct speed for the intended use.
By adapting the speed to the task you have planned and to
the m to be machined, better results can be obtained.
• Always hold the tool away from your face. Parts of
damaged accessories might come loose when high speeds
are reached.
• Before using the tool, you should get a feel for the tool.
Take the tool into your hand and familiarize yourself with
its weight and centre of gravity. Use some scrap material
to practise a bit and to learn how the tool responds with
different speed settings.
• For tasks requiring precision, like for example engraving,
polishing or sanding, you can also hold the tool between
your thumb and index finger like a pen. The tapering of the
housing on the lower part of the tool serves this purpose.
Cutting:
• Only use intact, flawless cutting discs. Bent, blunt or
otherwise damaged cutting discs could break.
• Never use the cutting disc for roughing!
• Only advance moderately during operation and make sure
that the cutting disc does not get jammed.
• Do not slow down the decelerating cutting disc by pressing
against the side of the disc.
• Always move the cutting disc through the workpiece in
reverse rotation.
• Hold onto the tool with both hands.
Sanding:
• Maintain a consistent grinding pressure to increase the
lifetime of the abrasive wheels and abrasive belts.
• You'll obtain better results if the machining process not
only involves one single work cycle, but if you move over
the surface several times with the tool.
Milling:
• Provide for an even forward motion to prevent overheating
of the milling cutter.
• Hold onto the tool with both hands.
Engraving:
• Hold the handle of the flexible shaft at a slight angle while
performing the engraving task, similar to the position of
holding a pen. Your arm should be resting on the table.
• Guide the engraving bit over the workpiece applying light
grinding pressure.
• Preferably use excess material to test the feed rate.
Polishing:
• When you polish the workpiece, guide the tool over the
workpiece only applying light grinding pressure.
Applying the brass brush/ plastic brush
• When you polish the workpiece, guide the tool over the
workpiece only applying light grinding pressure.
• For polishing, buffing or cleaning with a brass brush or
plastic brush, select a low speed level to prevent the brush
and material from damage.

20 EN
bench grinding machine PBGS 10-120
Switching the device on and off
Wear your personal protective equipment when working with
the device.
1. Check whether the fixed tool and the speed set are
suitable for the intended application.
2. Check whether the workpiece is secured and the worktop
prepared correspondingly.
3. Switch the device on by setting the on/off switch (37) to
position I.
37
4. Switch the device off by setting the on/off switch(37) to
position0.
37
Shutdown
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
• Switch off the device.
• Hold onto the mains plug while pulling the power cable out
of the mains socket.
• If applicable, disassemble the flexible shaft.
• Clean the device according to the Maintenance chapter.
• Store the device according to the Transport and storage
chapter.
Errors and faults
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
Troubleshooting tasks which require the housing to be opened
must only be carried out by an authorized specialist electrical
company or by Trotec.
Info
Wait for at least 10minutes after maintenance and
repair work. Only then switch the device back on.
Light smoke or odour is emitted during the first use:
• This is not a fault. These phenomena disappear after a
brief runtime.
The device does not start:
• Check the power connection.
• Check the power cable and mains plug for damage. If you
notice damages, do not try to take the device back into
operation.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
• Check the on-site fusing.
The device becomes hot:
• Make sure not to exert too much pressure on the device
during grinding.
• Check whether the tool is suitable for the tasks to be
carried out.
• Keep the venting slots clear to prevent the motor from
overheating.