FESTOOL ETSC 125 Li Orbital Sander Instruction Manual

: June 13, 2024
: FESTOOL

Table of Contents

ETSC 125 Li Orbital Sander
Symbols
Safety warnings
Intended use
Machine features
Commissioning
Settings
Working with the machine
Service and maintenance
Accessories
Environment
General information
Documents / Resources

Original Instructions
Eccentric sander

ETSC 125 Li Orbital Sander

** FESTOOL ETSC 125 Li Orbital Sander ETSC 125 Li

709051_G / 2021-04-14
**

FESTOOL ETSC 125 Li Orbital Sander - fig1 |
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EU Declaration of Conformity.
We declare under sole responsibility that this product complies with all the relevant requirments in the following EU Directives, and following standards and normative documents were applied:

2006/42/EG, 2014/30/EU 2) 4) , 2014/53/EU 3) ,2011/65/EU
EN 62841-1: 2015 + AC:2015, EN 62841-2-4:2014 + AC:2015, EN 55014-1: 2017 2) 4) , EN 55014-2: 2015 2) 4) , EN 61000-3-2: 2014 4),
EN 61000-3-3: 2013 4) , EN 300 328:2016 V2.1.1 3) , EN 301 489-1:2017 V2.1.1 3) ,
EN 301 489-17:2017 V3.1.1 3) , EN 50581:2012

aSigned on behalf of and in name of/
Festool GmbH
Wertstr. 20, D-73240 Wendlingen
GERMANY
Wendlingen, 2019-03-05

Head of Product Development

Head of Product Conformity

gilt in Kombination mit Akku / valid in combination with battery pack / valable en combinaison avec batterie BP 18 Li 3,1 Ergo

Symbols

| Warning of general danger
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| Warning of electric shock
| Read the operating instructions and safety instructions.
| Wear ear protection.
| Wear a dust mask.
| Wear protective goggles.
| Connecting the mains power cable
| Disconnecting the mains power cable
| Do not dispose of it with domestic waste.
| Safety class II
| CE marking: Confirms the conformity of the power tool with the European Community directives.
| Tool contains a chip which stores data. See section 12.1
| Tip or advice
| Handling instruction

Safety warnings

2.1 General power tool safety warnings
WARNING! Read all safety warnings, in structions, illustrations and specifica tions 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.
Follow the operating manual for the charger and the battery pack.

2.2 Machine-related safety instructions

Dust that is harmful to your health may be produced as you work (e.g. paint products containing lead and some types of wood).
Aontact with or inhalation of this dust may pose a risk for the operating personnel or persons in the vicinity. Observe the safety regulations that apply in your country.
Wear a P2 respiratory mask to protect your health. In enclosed spaces, ensure that there is sufficient ventilation and connect an extraction system.
Always wear protective goggles to pro tect against sanding hazards.
Clean work equipment soaked in oils, for example sanding pad or polishing felt, with water and allow to dry. Work equip ment soaked in oil may combust spontane ously.
Attention: Risk of fire! Avoid overheating the grinding material and the sander. Al ways empty the dust container before tak ing a break. Swarf in the filter bag or filter of the mobile dust extractor may self-ignite in unfavourable conditions such as flying sparks when grinding metals. Particular danger exists if the swarf is mixed with paint, polyurethane residue or other chem ical materials and the grinding material is hot after long periods of work.
If the power tool is dropped or falls, check
for damage to the machine and sanding pad. Remove the sanding pad for closer inspection. Repair damaged parts before using again. Broken sanding pads and damaged machines can cause injuries and machine instability.
Always use original Festool sanding pads.
Foreign pads are not suitable for the speed of the sander and may break.
While using the long-life dust bag be aware of electric charge. Always when possible use an antistatic suction hose with the power tool. A slight electric shock may cause you to panic briefly and become distracted, which may result in an accident.
Only use the mains adapter with this de vice.
Only use the mains adapter together with an original Festool plug-it cable.
Only for AS/NZS: The tool shall always be supplied via residual current device with a rated residual current of 30 mA or less.
Do not use power supply units or thirdparty battery packs to operate cordless power tools. Do not use third-party charg ers to charge the battery packs. The use of accessories not expressly authorised by the manufacturer can result in electric shocks and/or serious accidents.

2.3 Emission levels
The levels determined in accordance with EN 62841 are typically:

Sound pressure level	LPA = 68 dB(A)
Sound power level	LWA = 79 dB(A)
Uncertainty	K = 3 dB

CAUTION
Noise generated when working Risk of damage to hearing
► Use ear protection.
Vibration emission level ah (vector sum for three directions) and uncertainty K measured in accordance with EN 62841:
Vibration emission level (threeaxle) ah = 3 m/s 2

The specified emission levels (vibration, noise)

are used to compare machines.
They are also used for making preliminary estimates regarding vibration and noise load during operation.
They represent the primary applications of the power tool.

CAUTION

The emission values may deviate from the specified values. This is dependent on how the tool is used and the type of workpiece being machined.

The actual load during the entire operating cycle must be evaluated.
Depending on the actual load, suitable pro tective measures must be defined in order to protect the operator.

Intended use

The sanders are designed for sanding wood, plastic, composites, paint/varnish, filler and similar materials as directed. Metals and mate rials that contain asbestos must not be pro cessed.
To guarantee electrical safety, the machine must not be damp or operated in a damp envi ronment. The machine must only be used for dry sanding.
**** The user is liable for improper or non-in tended use.
This power tool is suitable for use with BP Festool battery packs of the same voltage class.

Cordless random orbit sander	ETSC 125Li
Voltage	18 – 20 V
No-load speed	6000 – 10000 rpm
Sanding stroke	2.0 mm
Sanding pad	D 125 mm
Weight (excl. battery pack, incl. sanding pad)	1 kg

Machine features

[1-1] On/Off switch
[1-2] Button for releasing the battery pack
[1-3] Capacity display
[1-4] Battery pack
[1-5] Extractor connector
[1-6] Speed control
[1-7] Sanding pad
[1-8] Edge protector
[1-9] Handle (insulated gripping surface)
[1-10] Mains adapter with plug-it connec tion
[1-11] Plug-it cable
[1-12] Long-life dust bag

not on all versions included in the scope of delivery
The specified illustrations appear at the begin ning of the Operating Instructions.

Commissioning

6.1 Switching on/off
The switch [1-1] serves as an on/off switch (I = ON, 0 = OFF).
When the battery pack is empty, or if there is a power failure or the mains plug is re moved, move the on/off switch immediate ly to the Off position. This prevents uncon trolled restarting.

6.2 Battery pack

Inserting the battery pack [2a]
Removing the battery pack [2b]

Capacity display
Pressing the green button on the capacity dis play [1-3] shows the charge status of the bat tery pack: FESTOOL ETSC 125 Li Orbital Sander -
display Recommendation: Charge bat tery pack before further use.

6.3 Mains adapter

WARNING
Unauthorised voltage or frequency!
Risk of accident

The mains voltage and the frequency of the power source must correspond with the specifications on the machine’s name plate.
In North America, only Festool machines with the voltage specifications 120 V/60 Hz may be used.

The mains adapter (available as an accessory depending on the model) facilitates use of the cordless sanding technology with mains power, enabling you to switch between power supply sources. The mains adapter enables the mobile dust extractor’s automatic electronic switchon/shut-off function.
For older mobile dust extractors, the auto matic electronic switch-on/shut- off may only be activated under load and not yet under no-load speed due to low power consumption.

Insert the mains adapter [3a]
Connect the mains adapter and plug-it ca ble [3b]
Remove the mains adapter [3c]
Detach the mains adapter from the plug-it cable [3d]

Settings

WARNING
Risk of injury

Remove the battery pack from the power tool before performing any work on the power tool.

7.1 Electronics

Smooth start-up
The electronically controlled smooth start-up function ensures that the power tool starts up smoothly.
Temperature cut-out
To avoid the motor overheating, the power con sumption is limited at an excessive motor tem perature (e.g. if the pressure is too high while working). If the temperature continues to rise, the power tool switches off. It can only be switched on again once the motor has cooled sufficiently.
Constant speed
The preselected motor speed is kept constant through electronic control. This means that, if the machine is used as intended (reasonable contact pressure), a constant sanding speed is achieved.
Setting and adjusting the speed
The speed can be set [1-6] between 6000 and 10000 min -1 using the adjusting wheel. For sanding, we recommend the following set tings for the adjusting wheel [1-6]:

Sanding work| Adjusting
wheel setting
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– Sanding with max. abrasion
– Sanding off old paint
– Sanding of wood and veneered surface prior to paintwork
– Intermediate sanding of paintwork on surfaces| 5 – 6
– Sanding thinly applied undercoat
– Sanding wood with sanding cloth
– Edge breaking on wooden parts
– Smoothing primed wooden surfa ces| 4 – 5
– Sanding solid wood and veneered edges
– Sanding rebate of windows and doors
– Intermediate sanding of paintwork at edges
– Light sanding of natural wood win dows using sanding cloth
– Smoothing wooden surfaces using sanding cloth before staining
– Rubbing or removing excess lime stone residue using sanding cloth| 3 – 4
– Intermediate sanding of paintwork on stained surfaces
– Cleaning natural wood window re bate using sanding cloth| 2 – 3
– Sanding stained edges
– Sanding of thermoplastics| 1 – 2

7.2 Replacing the sanding pad [4a]

An optimal work result can only be ach ieved using original accessories and con sumables. The use of non-original accessories or consumables invalidates the right to claim under warranty.
Warning! Do not perform any structural changes in the open interior space of the machine when the sanding pad is dismantled.
Undo the four screws.
Remove the sanding pad by pulling it down wards.
Attach the new sanding pad.
Use four screws to tighten it by hand (2.5 Nm).

Hardness of the sanding pad
Adapted to the surface being processed, the machine can be equipped with sanding pads of different hardnesses.
Soft: Universal for coarse and fine sanding, for flat and convex surfaces.
Extra-soft: Fine sanding of moulded parts, arches, radii. Do not use on edges.
7.3 Attaching sanding accessories using StickFix [4b] The suitable StickFix sandpaper and StickFix sanding cloth can be attached quickly and sim ply to the StickFix sanding pad.
► Affix the self-adhesive sanding accessory to the sanding pad.
In the case of a weakening adhesive ef fect of the StickFix surface, the sanding pad accessories, in particular those which are not yet touching the workpiece, may come loose from the sanding pad and cause injuries. Replace the sanding pad!

7.4 Dust extraction

WARNING

Dust hazard

Dust can be hazardous to health. Always work with a dust extractor.
Always read applicable national regula tions before extracting hazardous dust.

Integral dust extractor with long-life dust bag
As standard, the sanders are equipped with an integral dust extractor. The sanding dust is ex tracted through extraction openings in the sanding pad and is collected in the dust bag.
Installing the dust bag [5]

Slide the dust bag onto the machine until it clicks into place.

If the suction power is decreasing, empty the dust bag.

Press the dust bag onto the actuating ele ments.
Remove the dust bag by moving it towards the rear.
Open the flap on the dust bag.
Empty the dust bag and dispose of the waste.

Dust extraction with Festool’s mobile dust ex tractor
To prevent having to frequently empty the dust bag when carrying out sanding work for a long period of time, you can connect Festool’s mo bile dust extractor (with an extraction hose di ameter of 27 mm) to the extractor connection piece [1-5].

The start-up mode switches the mobile dust extractor on as soon as you switch the orbital sander on. The start-up mode only works in conjunction with the mains adapter.
If the power tool is used in cordless opera tion with a mobile dust extractor, the bat tery life decreases. Reducing the suction power minimises this effect.
High suction power can impair control of the power tool. Reducing the suction pow er minimises this effect.

Recommendation: Use an antistatic suction hose. This helps reduce the electric charge.

7.5 Edge protector [6]
The edge protector [1-8] reduces contact of the sanding pad circumference with a surface (e.g. when sanding along a wall or a window), thus preventing back- kick of the machine, or ma chine damage.

Push the edge protector into the groove on the machine.
Slot the two ends of the edge protector into place until they click.
Loosen both ends of the edge protector.
Remove the edge protector by pulling it for wards.

Working with the machine

WARNING

Risk of injury

Always secure the workpiece in such a manner that it cannot move while being machined.

Observe the following instructions:

Do not overload the machine by pressing with excessive force! The best sanding re sults are achieved with moderate applica tion pressure. The sanding capacity and quality are mainly dependent on the selec tion of the correct abrasive.
Hold the machine with one hand on the handle [1-9].

8.1 Warning signal

The machine shuts down and makes a sound:

Switch off the machine.
Battery pack is empty.
Change the battery pack.
The machine shuts down and does not make a sound:
Machine is overheated or has been overloaded.
Switch off the machine for 30 seconds.
Reduce the machine load.
If the machine’s final speed is then not reached, allow the machine to cool down.

Service and maintenance

WARNING
Risk of injury, electric shock

When carrying out servicing and mainte nance work, always remove the batteries or the mains adapter from the power tool first.
All maintenance and repair work which re quires the motor housing to be opened should always be carried out by an author ised service workshop.

Customer service and repairs must only be carried out by the manufac turer or service workshops. Find the nearest address at: www.festool.co.uk/service

Always use original Festool spare parts. Order no. at: www.festool.co.uk/service

To ensure constant air circulation, always keep the cooling air openings in the motor housing clean and free of any obstruction.
In the event of a slowdown in performance or increased vibrations, blow and clean cooling air openings.

Keep the contacts on the machine, charger and battery pack clean.
For service, maintenance, disposal and transport of the battery pack, note en closed instructions of the battery pack!

Accessories

Use only original Festool sanding pads. Lowquality sanding and polishing pads may cause serious machine imbalances that decrease the quality of the work results and increase wear on the power tool.
The order numbers of the accessories and tools can be found in the Festool catalogue or on the Internet under “www.festool.com“.

Environment

Do not dispose of the device in the household waste! Recycle devices, ac cessories and packaging. Observe appli cable national regulations.
EU only: In accordance with the European Di rective on waste electrical and electronic equipment and implementation in national law, used power tools must be collected separately and handed in for environmentally friendly re cycling.
Information on REACH: www.festool.com/reach

General information

Imported into the UK by
Festool UK Ltd
1 Anglo Saxon Way
Bury St Edmunds
IP30 9XH
Great Britain

12.1 Information on data privacy

The power tool contains a chip which automati cally stores machine and operating data. The data saved cannot be traced back directly to an individual.
The data can be read in a contactless manner using special devices and shall only be used by Festool for fault diagnosis, repair and warranty processing and for quality improvement or en hancement of the power tool. The data shall not be used in any other way without the express consent of the customer.

12.2 Bluetooth
® The Bluetooth ® word mark and the logos are registered trademarks of Bluetooth SIG, Inc.; they are used by TTS Tooltechnic Systems AG & Co. KG, and therefore by Festool, under licence.

Declaration of Conformity

We as the manufacturer Festool GmbH, Wertstrane 20, 73240 Wendlingen, Germany declare under our sole responsibility that the product(sl:
Designation: Cordless Orbital sander
Designation of Type(sl: ETSC 125 Li
Serial number’s)” 10022936
fulfills all the relevant provisions of the following UK Regulations:

S.I. 2008/1597 Supply of Machinery (Safety) Regulations 2008
S.I. 2016/109121 Electromagnetic Compatibility Regulations 2016
S.I. 2017/1206 31 Radio Equipment Regulations 2017
5.1. 2012/3032 Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012

and are manufactured in accordance with the following designated standards:

BS EN 62841-1: 2015
BS EN 62841-2-4: 2014
BS EN 55014-1:2017 21
BS EN 55014-2:201511
EN 300 328:2016 V2.1.1 31
EN 301 489-1:2017 V2.1.1 31
EN 301 489-17:2017 V3.1.1 31
BS EN IEC 63000:2018

in the specified serial number range 1,5411r.1 from 400000000 – 499999999
valid in combthation with battery pack BP 18 Li5,2 45 BP 19 Ls 4,245. BP 1BLi$1C, 3P 181., L,0 HPC-43
valid M combination with Bluetornh• battery pack OP l8 115.2 A51. OP 18 Li 6,2 A51. OP 18 Li 3.1 C1 BP 18 Li 4,0 P PC-451

Place and date of declaration: Wendlingen, 31.03.2021
Signed on behalf of and in name of Festool GmbH

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Declaration of Conformity

We as the manufacturer Festool GmbH, Wertstrae 20, 73240 Wendlingen, Germany declare under our sole responsibility that the product(s):

Designation: Mains adaptor
Designation of Type(sl: ACA 220-240/18V ERGO
Serial number(s) 10023306
fulfills all the relevant provisions of the following UK Regulations:

St 2016/1101 Electrical Equipment (Safety) Regulations 2016
St 2016/1091 Electromagnetic Compatibility Regulations 2016
S.I. 2012/3032 Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012

and are manufactured in accordance with the following designated standards:

BS EN 60950-1:2006+42:2013BS
EN 55014-1:2017
BS EN 55014-2:2015
BS EN IEC 61000-3-2:2019
BS EN 61000-3-3:2013
BS EN IEC 63000:2018

1. in the specified :trial number rangeIS-Mr) from 490000000 – 499999999
Place and date of declaration: Wendlingen, 31.03.2021
Signed on behalf of and in name of Festool GmbH

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Festool GmbH
Wertstraße 20
73240 Wendlingen
Germany
+49 (0)7024/804-0
www.festool.com