HILTI DWS 225 Long-Neck Sander Instruction Manual

DWS 225

Original operating instructions

Information about the documentation

 About this documentation

• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the product.
• Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons.

 Explanation of symbols used

Warnings

Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:

DANGER !
Draws attention to imminent danger that will lead to serious personal injury or fatality.

WARNING !
Draws attention to a potential threat of danger that can lead to serious injury or fatality.

CAUTION !
Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the equipment or other property.

Symbols in the documentation

The following symbols are used in this document:

| Read the operating instructions before use.
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| Instructions for use and other useful information
| Dealing with recyclable materials
| Do not dispose of electric equipment and batteries as household waste

 Symbols in the illustrations

The following symbols are used in illustrations:

2| These numbers refer to the corresponding illustrations found at the beginning of these operating instructions
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3| The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text
11| Item reference numbers are used in the overview illustrations and refer to the numbers used in the product overview section
| This symbol is intended to draw special attention to certain points when handling the product.

Product-dependent symbols

 Symbols on the product

The following symbols can be used additionally on the product:

| Wear eye protection
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| Wear ear protection
| Wear protective gloves
| Wear light respiratory protection
| Protection class II (double-insulated)
Ø| Diameter
/min| Revolutions per minute
RPM| Revolutions per minute

Product information

products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use.
The type designation and serial number are printed on the rating plate.
Write down the serial number in the table below. You will be required to state the product details when contacting Hilti Service or your local Hilti organization to inquire about the product.
Product information

Declaration of conformity

We declare, on our sole responsibility, that the product described here complies with the applicable directives and standards. A copy of the declaration issued by the certification department can be found at the end of this documentation.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany

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. Work area safety

• Keep work area clean and well-lit. Cluttered or dark areas invite accidents.
• 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.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

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 the 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. The 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. The use of an RCD reduces the risk of electric shock.

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 a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing 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 jewelry. Keep your hair and clothing away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
• 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.
• 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.

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.

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.

 Belt sander and drum sander safety warnings

• Hold the power tool by insulated gripping surfaces, because the sanding surface may contact its own cord. Cutting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

Additional safety instructions

• Use the power tool only when it is in perfect working order.
• Never tamper with or modify the power tool in any way.
• The power tool is not intended for use by persons who have received no special training. Keep the power tool out of reach of children.
• Always hold the power tool firmly with both hands on the grips provided. Keep the grips dry, clean, and free from oil and grease.
• After installing the backing pad, always install the screw cap.
• Check the power tool, the backing pad, the supply cord, and the connections at regular intervals for wear.
• Check the power tool’s supply cord at regular intervals and have it replaced by a qualified specialist if found to be damaged.
• Check extension cords at regular intervals and replace them if found to be damaged. Do not touch the supply cord or extension cord if it is damaged while working. Unplug the supply cord from the power outlet.
• In the event of an interruption in the electricity supply, switch the power tool off and unplug it from the power outlet to prevent an unwanted restart when power is restored.

Description

 Product overview 1

1. Sanding head
2. Extractor
3. Grip surfaces
4. Control panel
5. Power cord socket
6. Hose connector
7. Backing pad
8. Multi-purpose LED
9. On/off button
10. Speed indicator
11. Increase/reduce speed
12. Start/stop button

Intended use

The product is a hand-held, electrically powered random orbital sander. It is suitable for dry-sanding wood, wood-based materials, composites, varnishes, paints, plastics, plaster, and filler compounds with wearing replaceable sanding pads.

Possible misuse

• This product is not suitable for working on hazardous materials.
• This product is not suitable for working in a damp environment and use of the product for wet sanding is prohibited.
• Do not use backing pads with a nominal working speed lower than 8000 rpm.

LED indicators on the control panel 2

On the control panel, there is a multi-purpose LED to indicate operating status or malfunction of the power tool, and an LED array for indicating speed (rpm).

button pressed, speed indicator active.
C: Multi-purpose LED flashes green/red| Speed is increased/reduced; selected speed is indicated by the LEDs.
D:Multi-purpose LED shows red| Overtemperature warning.
D: Multi-purpose LED quick-flashes green/red| Voltage outside appropriate range.

Sanding head 3

The sanding head is 180° flexible, enabling the operator to reach the surface to be sanded from different angles. The power tool can track the operator’s movements, so the operator can adopt an ergonomic working position.

Items supplied

Random orbital sander, operating instructions.
Other system products approved for use with this product can be found at your local Hilti Store or at www.Hilti.group

Technical data

For rated voltage, rated current, frequency, and/or input power, refer to the country-specific type identification plate.

If the device is powered by a generator or transformer, the generator or transformer’s power output must be at least twice the rated input power shown on the rating plate of the device. The operating voltage of the transformer or generator must always be within +5 % and -15 % of the rated voltage of the device.

| DWS 225
---|---
Weight in accordance with EPTA procedure 01| 3.5 kg
Speed| 4,000 /min (66.7 Hz  … 133.3 Hz)
Eccentric stroke| 5 mm
Diameter, backing pad| 225 mm

Use of extension cords

Using extension cords

WARNING
A damaged supply cord presents a hazard! Do not touch the supply cord or extension cord if damaged while working. Disconnect the supply cord plug from the power outlet.
Check the appliance’s supply cord at regular intervals and have it replaced by a qualified specialist if found to be damaged.

• Use only extension cords of a type approved for the application and with conductors of adequate gauge (cross-section). The power tool may otherwise suffer a drop in performance and the extension cord may overheat.
• Check the extension cord for damage at regular intervals.
• Replace damaged extension cords.
• When working outdoors, use only extension cords that are approved and correspondingly marked for this application.

Information on recommended minimum conductor cross-sections and cable lengths are accessible via a link, in the form of a QR code, at the end of this document. 6

Preparations at the workplace

CAUTION Risk of injury! Inadvertent starting of the product.

• Unplug the supply cord before making adjustments to the power tool or before changing accessories. Observe the safety instructions and warnings in this documentation and on the product.

6.1 Positioning the sanding pad
Power tools, sanding pads, and backing pads together form a system. Be sure to use the correct combination and settings for the application. The choice of sanding pad (grit size), speed, and contact pressure determine the stock removal rate and the finish.

1. Unplug the supply cord from the power outlet.
2. Select a suitable sanding pad and secure it to the backing pad. Make sure that the sanding pad is centered and securely seated against the backing pad. 7 Types of work

WARNING
Damaged power cords are a safety hazard! If the supply cord or extension cord is damaged while work is in progress, immediately disconnect the device and the cord from the electricity supply. Do not touch the damaged part of the cord

• Regularly check all supply cords. Replace defective extension cords. Have damaged power cords replaced by a qualified specialist. Use of a ground fault circuit interrupter (residual current device, RCD) with a maximum tripping current of 30 mA is recommended.

7.1 Switching on

• Press the on/off button.
• The multi-purpose LED shows green. Warning! The power tool develops torque as soon as the motor starts. If possible, always use the power tool in combination with an industrial vacuum cleaner.

7.2 Sanding
1. Set the desired speed. To do this, use the “Increase/reduce speed” buttons as appropriate.

• Speed can be adjusted in the range from 4000 to 8000 rpm. The LED array indicates the set speed. 2. Position the power tool with the whole of its sanding face on the surface to be sanded. 3. Press the start/stop button.
• The sanding operation starts 4. Applying moderate pressure, move the power tool steadily over the surface to be sanded. 7.3 Ending the sanding operation 1. Lift the power tool clear of the surface being sanded before you end the sanding operation.
• Otherwise, the excessive speed could cause the abrasive to leave marks in the surface being sanded. 2. Press the start/stop button.

7.4 Switching off

1. Press the on/off button.
2. Do not set the power tool down until the backing pad has come to a complete stop.

Care and maintenance

WARNING

Electric shock hazard! Attempting care and maintenance with the supply cord connected to power can lead to severe injury and burns.
Always unplug the supply cord before carrying out care and maintenance tasks.
Care

• Carefully remove stubborn dirt from the tool.
• Clean the air vents carefully with a dry brush.
• Use only a slightly damp cloth to clean the casing. Do not use cleaning agents containing silicthey can attack the plastic parts.

Maintenance

WARNING
The danger of electric shock! Improper repairs to electrical components may lead to serious injuries in burns.

• Repairs to the electrical section of the tool or appliance may be carried out only by trained eye specialists.
• Check all visible parts and controls for signs of damage at regular intervals and make sure that function correctly.
• Do not operate the product if signs of damage are found or if parts malfunction. Have it immediately by Hilti Service.
• After cleaning and maintenance, fit all guards or protective devices and check that they function correctly.

To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables parts, consumables, and accessories approved by Hilti for use with the product can be found local Hilti Store or online at: www.Hilti.group.

8.1 Assembly modules 4

1. Arbor and bearing module %
2. Cap for screw;
3. Sanding head
4. Backing pad with securing screws
5. Securing screw for sanding head

8.2 Changing the backing pad 4
Tools needed: 19 mm hex bit socket and Torx screwdriver.

1. Disconnect the supply cord plug from the power outlet.

2.  Remove the screw cap.

3. Remove the backing pad screw.

4. Remove the old backing pad.

5. Install the new backing pad positioned correctly on the spindle.

6. Using the hex bit socket, tighten the backing pad screw to 10 Nm.

7. Install the screw cap.
   ▶ Tighten the securing screw of the screw cap to 0.8 Nm.

8. Check that the backing pad is installed correctly and not tilted.

8.3 Changing backing pad and attachment pad 4
Tools needed: Plain screwdriver.

1. Disconnect the supply cord plug from the power outlet.

2. Remove the 8 recessed screws.

3.  Remove the attachment pad.

4. Remove the old backing pad.

5. Install the new backing pad positioned correctly on the spindle.

6.  Secure a new attachment pad.
   Re-install the 8 recessed screws.

7. Check that the backing pad and attachment pad are installed correctly and do not tilt.

Transport and storage

Transport

• Make sure that the equipment is held securely throughout all transport operations.
• After transporting, always check all visible parts and controls for signs of damage and make sure that they all function correctly.

Storage

• Always store this product with the electric supply cable unplugged from the electricity supply.
• Store this product in a dry place, where it cannot be accessed by children or unauthorized persons.
• After a long period of storage, always check all visible parts and controls for signs of damage and make sure that they all function correctly.

Troubleshooting

to a power outlet that delivers the correct voltage for the power tool.
The multi-function LED does not show when the power tool is switched on.| The supply cord is not correctly connected to the power tool or the power outlet.| ►Connect the supply cord correctly.
The multi-function LED on the sander shows red, speed drops slightly.| Excessive pressure applied to the power tool for a short time.| ►Apply less pressure to the power tool; the multi-function LED will switch automatically back to green.
The multi-function LED on the sander shows red and the speed of the sander drops to 4000 rpm while sanding is in progress.| The temperature in the sander is too high. Excessive pressure was applied to the power tool for a prolonged time.| ►Apply less pressure for a moment to allow speed to increase.
The seal on the backing pad does not work.| Worn seal or faulty spindle bearing.| ►Check the seal and the spindle bearing; replace as necessary.
The sander has stopped and the multi-function LED shows red.| The power tool has switched to safe mode because the temperature was too high.| ►Wait until the power tool has cooled down.

Disposal

Most of the materials from which Hilti tools and appliances are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, your old tools, machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti representative for further information.
Do not dispose of power tools, electronic equipment or batteries as household waste!

Manufacturer’s warranty

• Please contact your local Hilti representative if you have questions about the warranty conditions.

13 Further information
For more information on operation, technology, environment, and recycling, follow this link: qr.hilti.com/manual/?id=2301587
This link is also to be found at the end of the documentation, in the form of a QR code.

http://qr.hilti.com/manual/?id=2301587

This Product is certified:
4006707
CONFORMS TO UL STD
62841-1 62841-2-4
CERTIFIED TO CAN/CSA STD
C22.2 NO. 62841-1 62841-2-4

References

• HILTI Country selector
• HILTI Country selector
• Главная страница - Hilti Россия

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