FESTOOL Cordless Orbital Sander Instruction Manual

RTSC 400 Li
DTSC 400 Li

709660_C / 2020-06-02

Festool GmbH
Wertstraße 20
73240 Wendlingen
Germany
www.festoolusa.com

Read all instructions before using

Symbols

safety notices!
| Wear ear protection.
| Wear a dust mask.
| Wear protective goggles.
| Switch the power supply on.
| Switch the power supply off.
****| Tip or advice
---|---
| Handling instruction
V| volts
A| amperes
Hz| hertz
ac| alternating current
| direct current
| no-load speed
Symbol| Significance
---|---
rpm
min| revolutions per minute
’’| inch
lbs| pound
| diameter
°C| degree centigrade
°F| degree Fahrenheit
Nm| Newton meter
Ah| amps hour
Wh| watt-hour

About this manual

Save these instructions
It is important for you to read and understand this manual. The information it contains relates to protecting your safety and preventing prob­ lems. The symbols below are sed to help you recognize this information.

DANGER Description of imminent hazard and failure to avoid hazard will result in death.
WARNING Description of hazard and possible resulting injures or death.
CAUTION Description of hazard and possible resulting injuries.
NOTICE Statement including nature of the hazard and possible re­sult.
HINT Indicates information, notes, or tips for improving your success using the tool.

 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

WORK AREA SAFETY
a. Keep the work area clean and well-lit. Clut­ tired or dark areas invite accidents.
b. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that may ignite dust or fumes.
c. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
d. Never leave the power tool unattended. Only leave the power tool when the tool in use has come to a complete standstill.

ELECTRICAL SAFETY
a. 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 ching outlets will reduce the risk of electric shock.
b. Avoid body contact with earthed or grounded surfaces, such as pipes, radia­ tors, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
d. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of elec­ tric shock.
e. When operating a power tool outdoors, use an extension cord suitable for outdoor use. The use of a cord suitable for outdoor use reduces the risk of electric shock.
f. If operating a power tool in a damp loca­ tion is unavoidable, use a residual current device (RCD) protected supply. The use of an RCD reduces the risk of electric shock.

PERSONAL SAFETY
a. Stay alert, watch what you are doing, and use common sense when operating a pow­r tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inat­ mention while operating power tools may result in serious personal injury.
b. Use personal protective equipment. Al­  ways wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protec­ tion used for appropriate conditions will reduce personal injuries.
c. Prevent unintentional starting. Ensure the switch is in the off-position before con­ connecting to a power source and/or battery pack, picking up or carrying the tool. Car­ trying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.
d. Remove any adjusting key or wrench be­ fore turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in a personal in­ jury.
e. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
f. Dress properly. Do not wear loose cloth­ ing or jewelry. Keep your hair and cloth­ ng away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
g. If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
h. Do not let familiarity gained from frequent use of tools allow you to become compla­ cent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second

POWER TOOL USE AND CARE

a. Do not force the power tool. Use the cor­  rect power tool for your application. The correct power tool will do the job better and safer at the rate for which it was de­
signed.
b. 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
c.  disconnect the plug from the power source and/or remove the battery pack, if teachable, from the power tool before making any adjustments, changing acces­ stories, or storing power tools. Such pre­ preventive safety measures reduce the risk of starting the power tool accidentally.
d. 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 un­ trained users.
e. Maintain power tools and accessories. Check for misalignment or binding of mov­ ing 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.
f. Keep cutting tools sharp and clean. Prop­ early maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
g. Use the power tool, accessories and tool bits, etc. in accordance with these instruc­ tions, taking into account the working con­  tions and the work to be performed. Use of the power tool for operations different from those intended could result in a haz­ arduous situation.
h. Keep handles and grasping surfaces dry, clean, and free from oil and grease. Slip­ pery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery tool use and care
a. Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
b. Use power tools only with specifically des­ ignited battery packs. Use of any other battery packs may create a risk of injury and fire.
c. When the battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a con­nection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
d. Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with wa­ ter. If liquid contacts eyes, additionally eek medical help. Liquid ejected from the battery may cause irritation or burns.
e. Do not use a battery pack or tool that is damaged or modified. Damaged or modi­fied batteries may exhibit unpredictable be­  behavior resulting in fire, explosion or risk of injury.
f. Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C (265 °F) may cause an explosion.
g. Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the in­ instructions. Charging improperly or at tem­ temperatures outside the specified range may damage the battery and increase the risk of fire.

SERVICE
a. Have your power tool serviced by a quali­ fied repair person using only identical re­ placement parts. This will ensure that the safety of the power tool is maintained.
b. Never service damaged battery packs. The service of battery packs should only be performed by the manufacturer or author­ sized service providers.
c. Only use original Festool parts for repair and maintenance. The use of incompatible accessories or spare parts can result in electric shocks or other injuries. Machine-related safety instructions – Dust that is harmful to your health may be reduced as you work (e.g. paint products containing lead and some types of wood).
Contact with or inhalation of this dust may pose a risk for the operating personnel persons in the vicinity. Observe the safety regulations that apply in your country.
Wear a P2  respirator mask to protect our health. In enclosed spaces, ensure that there is sufficient ventilation and connect an extraction system.
Always wear protective goggles to pro­ etc against sanding hazards.

• Clean work equipment soaked in oils, for example sanding pad or polishing felt, with water and allow to dry. Work equip­ ent soaked in oil may combust spontane­ loudly.
•   Attention: Risk of fire! Avoid overheating the grinding material and the sander. Al­ ways empty the dust container before tak­ing a break. Swarf in the filter bag or filter of the bile dust extractor may self-ignite in unfavorable conditions such as flying sparks when grinding metals. Particular danger exists if the swarf is mixed with paint, polyurethane side 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. Have the damaged parts re­ paired before use? Broken sanding pads nd damaged machines can cause injuries and machine instability.
•  Always use original Festool sanding pads.
•   While using the long-life dust bag be aware of the electric charge. Always when possible use an antistatic suction hose with the power tool. A slight electric shock may cause you o 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 wit an original Festool plug-it cable.
•   Only for AS/NZS: The tool shall always be supplied via a residual current device with a rated residual current of 30 mA or less.

Battery pack and charger safety instructions

•  This charger can be operated by persons with reduced physical, sensory or mental capabilities or a lack of practical experi­  nice and knowledge, provided they are su­pervised  rave been instructed to use the machine safely and understand the dan­ gears of machine operation. Children are not allowed to use or play with the machine

• Do not open the battery pack or the charg­ er!

• Prevent metal parts (e.g. metal chips) or fluids from entering the charger!

• Do not use power adapters or battery packs from other manufacturers to oper­ ate the cordless power tool. Do not use any charger from other manufacturers for charging the battery pack. The use of im­ permissible accessories may result in elec­ tric shock and/o serious accidents!

• Protect the battery pack from excessive heat > 50 °C or constant heat sources such as sunlight or naked flames!
  Never use water to extinguish burning Li-ion battery packs! Use sand or a fire blan­ ket.

• Check the plug and the cable regularly and should either become damaged, in order to avoid a hazard, have them replaced by an authorized after-sales service workshop.

• Always pull the mains plug out of the sock­ et when the charger is not in use.

Health hazard by dust
WARNING! Various dust created by pow­ er sanding, sawing, grinding, drilling and other construction activities contains chemicals known (to the State of California) to cause  an­ cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• lead from lead-based paint
• crystalline silica from bricks and cement and other  masonry  products, and
• arsenic and chromium from chemically treated lumber.

The risk from these exposures varies, depend­  ing on how often you do this type of work. To re­duce your exposure to these chemicals: work in a well- ventilated areas, and work ith approved safety equipment, such as dust masks that are specially designed to filter out microscopic par­ articles. Wash hands after handling.

WARNING
TO REDUCE THE RISK OF INJURY, THE USER MUST READ THE INSTRUCTION MANUAL.
4 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 proc­ used.
To guarantee electrical safety, the machine must not be damp or operated in a damp envi­ronment. The machine must only be used for dry sanding.

****The user is liable for improper or non-in­ tended use.

Technical data

Functional description

The pictures for the functional description are on a fold-out page at the beginning of the in­ instruction manual. While reading the manual you can fold out the page for comparison and quick reference.
[1-1] On/Off switch
[1-2] Battery pack
[1-3] Capacity display
[1-4] Extractor connector
[1-5] Speed control
[1-6] Sanding pad
[1-7] Edge protector
[1-8] Handle (insulated gripping surface)
[1-9] Mains adapter with plug-it connec­ tion
[1-10] Plug-it cable
[1-11] Long-life dust bag

• not on all versions included in the scope of delivery

Commissioning

Switch on/off
The switch [1-1] is an on/off switch (I = ON, 0 = OFF).
When the battery is empty, or if there is a power failure or the mains plug is removed, move the on/off switch im­ mediately to the Off position. This prevents uncontrolled restarting.

Battery pack
► Inserting the battery pack [2a] ► Removing the battery pack [2b] Capacity display
Pressing the green button on the capacity dis­play [1-3 ] shows the charge status of the bat­ tery pack:

Recommendation: Charge battery  pack before further use.
Mains adapter
WARNING
Unauthorized 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 nameplate.
► 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 the use of the cordless sanding technology with mains power, enabling you to switch between power supply sources. The mains adapter enables the mobile use extractor’s electronic switch on/shut-off function.

For older mobile dust extractors, the automatic electronic switch-on/shutoff 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 ca­ble [ 3b ] ► Remove the mains adapter [3c ] ► Detach the mains adapter from the plug-it cable [ 3d ]

Settings

WARNING
Risk of injury
► When working on power tools, always re­ move the batteries or disconnect the mains adapter first.
Electronics
Smooth start-up
The electronically controlled smooth start-up ensures that the machine starts up jolt-free.
Temperature cut-out
To avoid the motor overheating, the power con­  consumption is limited at an excessive motor tem­perature. If the temperature continues to rise,  the power tool switches off nd  an only switched on again once the motor has cooled sufficiently.
Constant speed
The preselected motor speed is kept constant through electronic control. This means that the machine is used as intended (reasonable contact pressure), a constant sanding peed is achieved.

Setting and adjusting the speed

The speed can be set [1-5] between 6000 10000 min -1 using the adjusting wheel. For sanding, we recommend the following things for the adjusting wheel [1-5]: Sanding work
Adjusting wheel setting

•  Sanding with max. abrasion
•  Sanding off old paint
•  Sanding of wood and ven­ entered surface prior to paint­ work
• Intermediate sanding of paintwork on surfaces
• Sanding thinly applied under­ coat
•  Sanding wood with a sanding cloth
•  Edge breaking on wooden parts
• Smoothing primed wooden surfaces
•  Sanding solid wood and ven­ eered edges
•  Sanding rebate of windows and doors
•  Intermediate sanding of paintwork at edges
•  Light sanding of natural wood windows using sanding cloth
• Smoothing wooden surfaces using sanding cloth before staining
•  Rubbing or removing excess limestone residue using sanding clot Sanding work Adjusting wheel setting
• Intermediate sanding of paintwork on stained surfa­ ces
• Cleaning natural wood win­ dow rebate using sanding cloth
• Sanding stained edges
•  Sanding of thermoplastics

Changing sanding pad [4a]
An optimal work result can only be ach­  achieved using original accessories and con­ consumables. The use of non-original accessories consumables invalidates the right to claim under warranty.

DTS 400 REQ

DTS 400 REQ

If the StickFix coating on the sanding pad has worn out, the entire sanding pad can be re­placed

1. Undo the four screws.
2. Remove the sanding pad by pulling it down­ wards.
3. Attach the new sanding pad.
4. Use four screws to tighten it by hand (2.5 Nm).

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.

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 ex­tracted through extraction openings in the sanding pad and is collected in the dust bag.
1.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.

1. Press the dust bag onto the actuating ele­ments.
2. Remove the dust bag by moving it towards the rear.
3. Open the flap on the dust bag.
4. Empty the dust bag and dispose of the waste.

Dust extraction with Festool’s mobile dust ex­tractor
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 mo­bile dust extractor (with an extraction hose di­ameter of 27 mm) to the extractor connection piece [1-4].
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 operation with a mobile dust extrac­ tor, the battery life decreases. Reduc­ ing the suction power minimizes this effect.
High suction power can impair control of the power tool. Reducing the suc­tion power minimizes this effect.
Recommendation: Use an antistatic suction hose. This helps reduce the electric charge.
Edge protector [6]
The edge protector [ 1-7 ] prevents the sanding pad circumference from coming into contact with a surface (e.g. when sanding along a wall or a window), thus preventing back-kick of the machine or machine damage.

1. Push the edge protector into the groove on the machine.
2. Slot the two ends of the edge protector into place until they click.
3. 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:

1. Do not overload the machine by pressing with excessive force! The best sanding re­ results are achieved with moderate applica­ tion pressure. The sanding capacity and quality are mainly dependent on the selection of the correct abrasive.
2. Work in corners and on edges tends to sub­ just the tip to increased stress and results in increased heat development. In such cases, work with reduced contact pressure.
3.  Hold the machine with one hand on the handle [1-8].

Warning signal
The machine shuts down and makes a sound:
The battery pack is empty.
► Switch off the machine.
► The battery pack is empty.
► Change the battery pack.
The machine shuts down and does not make a sound:
The machine is overheated or has been overloaded.
► The machine is overheated or has been over­ loaded.
► 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. 10 Service and maintenance
WARNING
Any maintenance or repair work that re­quires opening of the motor or gear housing should only be carried out by an authorized Customer Service Centre (name supplied by
your dealer)!
► Maintenance or repair work carried out by  an unauthorized person can lead to the wrong connection of the power cord or oth­ er components, which in turn can lead to accidents with serious consequences.
CAUTION
Certain cleaning agents and solvents are harmful to plastic parts.
► Some of these include but are not limited to: Gasoline, Acetone, Methyl Ethyl Ketone(MEK), Carbonyl Chloride, cleaning solu­tions containing Chlorine, Ammonia, and household cleaners containing Ammonia.

WARNING
Risk of injury, electric shock
► When carrying out servicing and mainte­ nance work, always remove the batteries the mains adapter from the power tool first.
► All maintenance and repair work that re­quires the motor housing to be opened should always be carried out by an author­ ised service workshop.

After-sales service and epair are allowed only by the manufacturer or service workshops: Find your nearest address online at www.festool.com/service
Fig. 10.1: 00070748
Always use original Festool spare parts. Order no. at: www.festool.com/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 accessories and Fes­tool consumable material intended for this ma­ chine because these components are designed specifically for the machine. Using accessories and consumable material from other suppliers will most likely affect the quality of your work­ ing results and limit any warranty claims. Ma­ chine wear or your own personal workload may increase depending on the application. Protect yourself and your machine, and preserve your warranty claims by always using original Fes­tool accessories and Festool consumable mate­rial!
The order numbers of the accessories and tools can be found in the Festool catalog or on the Internet under “www.festoolusa.com”.
Systainer
Many Festool products are shipped in a unique system container, called “Systainer”. This pro­ vides protection and storage for the tool and ac­ accessories. The Systainers are trackable and can be interlocked together. They also can be interlocked atop Festool CT dust extractors.
To open the Systainer
Turn the T-loc [7-1] to this position.
To lock the Systainer
Turn the T-loc [7-1] to this position.
To connect two Systainers
Place one Systainer on the top of the other (Fig. [7 A]).
Turn the T-loc [7-1] to one of these po­sitions (Fig. [7 B]).
The Systainers are connected and locked.
A new generation Systainer is con­nectable on top of a previous genera­tion Systainer by the four latches of the previous Systainer.

Environment

Do not dispose of the device as domestic waste! Dispose of machines, accessories, and packaging at an environmentally responsible recycling center. Observe the respective nation­ al regulations.
Battery Disposal
WARNING
Risk of fire or injury
► Do not attempt to disassemble the battery or remove any component projecting from the battery terminals.
► Prior to disposal, protect exposed termi­ nails with heavy insulating tape to prevent shorting.
Information on data protection
The power tool contains a chip which automati­  cally stores machine and operating data (RFID). This data saved cannot be traced back directly to an individual.  e data can be read using special (contactless) devices and shall only be used by Festool for fault diagnosis, repair, and warranty processing and for quality improvement or enhancement of the power tool. The data shall not be used in any other way without the express consent of the customer.

References

• Festool Worldwide - Tools for the toughest demands
• Service
• Festool United States - Professional Power Tools for Superior Craftsmen
• Festool customer service | Service for you and for your tool

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