metabo KFM 9-3 RF Bevelling Tool Instruction Manual

June 12, 2024
metabo

KFM 9-3 RF
KFM 18 LTX 3 RFmetabo KFM 9 3 RF Bevelling Tool -

Original instructions

KFM 9-3 RF Bevelling Tool

metabo KFM 9 3 RF Bevelling Tool - fig1

| KFM 18 LTX 3 RF
*1) Serial Number: 01754..| KFM 9-3 RF

    1. Serial Number: 01751..
      ---|---|---
      U| V| 18| –
      n| min-1 (rpm)| 7000| 4500 – 11500
      P1| W| –| 900
      P2| W| –| 470
      hmax| mm (in)| 4 (5/32)| 4 (5/32)
      rmax| mm (in)| 3(1/8)| 3(1/8)
      a| 0| 45°| 45°
      m| kg (Ibs)| 2,9 (6.4)| 2,5 (5.5)
      aa/Ka| m/s2| 0,94 / 1,5| 0,7 / 1,5
      LpA/KpA| dB(A)| 84/3| 87/3
      LwA/KwA| dB(A)| 95/3| 98/3

metabo KFM 9 3 RF Bevelling Tool - fig2

*** 2) 2014/30/EU, 2006/42/EC, 2011/65/EU
3) EN 62841-1:2015, EN ISO 12100:2010, EN IEC 63000:2018
2023-01-03, Bernd Fleischmann
Direktor Produktentstehung & Qualität (Vice President Product Engineering & Quality)
4) Metabowerke GmbH – Metabo-Allee 1 – 72622 Nuertingen, Germany

Declaration of Conformity

We, being solely responsible: Hereby declare that these bevelers, identified by type and serial number 1), meet all relevant requirements of directives 2) and standards 3). Technical documents for 4) – see page 3.
For UK only:
*** We as manufacturer and authorized person to compile the technical file, see 4) on page 3, hereby declare under sole responsibility that these bevelers, identified by type and serial number *1) on page 3, fulfill all relevant provisions of following UK Regulations S.I. 2016/1091, S.I. 2008/1597, S.I. 2012/3032 and Designated Standards EN 628411:2015, EN ISO 12100:2010, EN IEC 63000:2018

Specified Use

The beveler is intended for the bevelling of edges of steel, stainless steel, aluminium and aluminium alloys in the professional sector.
For processing aluminium, aluminium alloys and stainless steel, a suitable lubricant (item no.: 6.23443) must be used.
The user bears sole responsibility for any damage caused by inappropriate use.
Generally accepted accident prevention regulations and the enclosed safety information must be observed.

General Safety Instructions

For your own protection and for the protection of your electrical tool, pay attention to all parts of the text that are marked with this symbol!
WARNING – Reading the operating instructions will reduce the risk of injury.
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. Pass on your electrical tool only together with these documents.

Special Safety Instructions

a) Hold the power tool by insulated gripping surfaces only, because the cutter may contact its own cord. Cutting a “live” wire may make  exposed metalparts of the power tool “live” and could give the operator an electric shock.
b) Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by your hand or against the body leaves it unstable and may lead to loss of control.
c) Do not use accessories that are not specifically designed and recommended for this power tool by the manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
d) Do not use damaged power tools. Before use, check the indexable inserts for chipping, cracks, or signs of severe wear and tear. If a power tool or accessory is dropped, inspect for damage or install an undamaged accessory.
e) User 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.
f) 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.
g) Always hold the tool firmly in your hands during the start-up. The reaction torque of the motor, as it accelerates to full speed, can cause the tool to twist.
h) Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by your hand or against the body leaves it unstable and may lead to loss of control. Clamping a small workpiece allows you to use your hands to control the tool.
i) 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.
j) 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.
k) 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.
l) Do not operate the power tool near flammable materials. Sparks and hot chips can ignite these materials.
m) Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

4.1 Kickback and Related Warnings
Kickback is the sudden response to an accessory pinching or jamming while rotating. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.
For example, if an indexable insert is snagged or pinched by the workpiece, the edge of the insert that is entering into the pinch point can dig into the surface of the material causing the insert to climb out or kick out. The indexable insert may either jump toward or away from the operator, depending on direction of the indexable insert holder at the point of pinching. Indexable inserts may also break under these conditions.
Kickback is the result of power tool misuse and/orincorrect operating procedures or conditions It can be prevented if suitable precautionary measures are taken as described below.
a) 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.
b) 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 and cause loss of control or kickback.
c) Always feed the bit into the material in the same direction as the cutting edge is exiting from the material (which is the same direction as the chips are thrown). Feeding the tool in the wrong direction causes the cutting edge of the bit to climb out of the work and pull the tool in the direction of this feed.
d) Prevent any jamming of the indexing insert or excessive pressure. Do not set the chamfer height greater than the permitted maximum. Overstressing the indexable insert increases the loading and susceptibility to twisting or binding of the indexable insert in the cut and the possibility of kickback or breakage of the indexable insert.
e) Do not position your hand in line with and behind the indexable insert. When the indexable insert, at the point of operation, is moving away from your body, the possible kickback may propel the spinning indexable insert and the power tool directly at you. Turn/replace blunt indexable inserts or inserts where the coating is worn in due time. Blunt indexable inserts increase the risk of the machine getting jammed and climb out.
4.2 Additional Safety Instructions:
Hold the power tool by insulated gripping surfaces, because the cutter may contact its own cord. Cutting a “live” wire may make exposed metal parts of the power tool “live” and shock the operator.
Keep work area clean and well lit. Cluttered or darkareas invite accidents.
WARNING – Always wear protective goggles.
Wear ear protectors.
Wear a suitable dust protection mask.
Wear suitable work clothes.
Ensure that nobody gets injured by catapulted foreign bodies.
Keep persons nearby and pets at a safe distance to the device.
Keep away hair, loose clothing, fingers and other body parts. They can get caught and sucked in. Use a hair net for long hair.
Warning from rotating tools
Always wear protective goggles, gloves, and sturdy shoes when working with this tool.
Danger of injury from sharp edges. Wear protective gloves.
Indexable inserts, holders for indexable inserts, workpiece and chips can be hot after work. Wear protective gloves.
Wear ear protectors when working for long periods of time. High noise levels over a prolonged period of time may affect your hearing.
Use only sharp, undamaged indexable inserts.
The workpiece must lay flat and be secured against slipping, e.g. using clamps. Large workpieces must be sufficiently supported.
Ensure that sparks produced during work do not constitute a risk to the user or others and are not able to ignite flammable substances. Areas at risk must be protected with flame-resistant covers. Always keep a fire extinguisher on hand when  working in areas prone to fire risk.
Always hold the machine with both hands on the intended handles, take a secure stance and concentrate on the work.
Keep your hands away from the milling area and from the tool.
Do not touch the rotating tool! Remove chips and similar material only with the machine at a standstill.
Press the spindle locking button (2) only when the motor is off.
Damaged, eccentric or vibrating tools must not be used.
Do not work overhead.
Reducing dust exposure:
WARNING – Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to

cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
– Lead from lead-based paints,
– Crystalline silica from bricks and cement and other masonry products, and
– Arsenic and chromium from chemically treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.
This also applies to dust from other materials suchas some timber types (like oak or beech dust), metals, asbestos. Other known diseases are e.g. allergic reactions, respiratory diseases. Do not let dust enter the body.
Observe the relevant guidelines and national regulations for your material, staff, application and place of application (e.g. occupational health and safety regulations, disposal).
Collect the particles generated at the source, avoid deposits in the surrounding area.
Use suitable accessories for special work. In this way, fewer particles enter the environment in an uncontrolled manner.
Use a suitable extraction unit.
Reduce dust exposure with the following measures:
– do not direct the escaping particles and the exhaust air stream at yourself or nearby persons or on dust deposits,
– use an extraction unit and/or air purifiers,
– ensure good ventilation of the workplace and keep clean using a vacuum cleaner. Sweeping or blowing stirs up dust.
– Vacuum or wash the protective clothing. Do not blow, beat or brush.
4.3 Special safety instructions for mains powered machines:
Pull the plug out of the socket before making any adjustments, changing tools, carrying out maintenance or cleaning.
Use of a fixed extractor system is recommended.
Always install an RCD with a maximum trip current of 30 mA upstream. When the machine is shut down by the RCD, it must be checked and cleaned. See chapter 10. Cleaning.
4.4 Special safety instructions for cordless machines:
Remove the battery pack from the machine before making any adjustments, changing tools, maintaining or cleaning.
Protect battery packs from water and moisture!
Do not expose battery packs to fire!
Do not use faulty or deformed battery packs!
Do not open battery packs!
Do not touch contacts or short-circuit battery packs!
** A slightly acidic, flammable fluid may leak from defective Li-ion battery packs!
If battery fluid leaks out and comes into contact with your skin, rinse immediately with plenty of water. If battery fluid leaks out and comes into contact with your eyes, wash them with clean water and seek medical attention immediately!
If the machine is defective, remove the battery pack from the machine.
Transport of li-ion battery packs:
** The shipping of li-ion battery pack is subject to laws related to the carriage of hazardous goods (UN 3480 and UN 3481). Inform yourself of the currently valid specifications when shipping li-ion battery packs. If necessary, consult your freight forwarder.
Certified packaging is available from Metabo.
Only send the battery pack if the housing is intact and no fluid is leaking. Remove the battery pack from the machine for sending. Prevent the contacts from short-circuiting (e.g. by protecting them with adhesive tape).

Overview

See page 2.

  1. Clamping screws
  2. Spindle locking button
  3. Bow handle
  4. Wing nuts
  5. Slide switch
  6. Handle
  7. Speed adjustment wheel
  8. Dust filter *f
  9. Electronic signal indicator *
  10.  Battery pack release button *
  11. Capacity indicator button *
  12.  Capacity and signal indicator *
  13.  Battery pack *
  14. Graduated collar
  15.  Adjusting ring
  16.  Scale
  17. Knurled screw *
  18. Ripping fence*
  19.  Support surface
  20.  Screw for fixing the ball bearing stationary seal ring
  21.  Ball bearing stationary seal ring
  22.  Indexable insert
  23. Fastening screw
  24.  Holder for indexable insert *equipment-specific

Commissioning

6.1 For mains powered machines only
Before plugging in, check that the rated mains voltage and mains frequency, as stated on the type plate match your power supply.
Always install an RCD with a maximum trip current of 30 mA upstream.

6.2 Adjust bow handle
Always work with the bow handle (3) attached!

– Loosen the wing nuts (4) on the left and right.
– Adjust the bow handle (3) to the required angle.
– Firmly tighten the wing nut (4) to the left and right manually.
6.3 For cordless machines only
Dust filter
Always fit the dust filter (7) if the surroundings are heavily polluted.
The machine heats up faster when the dust filter (7) is fitted. It is protected by the electronics system from overheating (see Section 11.).
To fit: See illustration A on page 2.
Fit the dust filter (7) as shown.
Removal: Holding the dust filter (7) at the edges, raise it slightly and then pull it downwards and remove.
Rotating battery pack
See illustration B on page 2.
The rear section of the machine can be rotated 270° in 3 stages, thus allowing the machine’s shape to be adapted to the working conditions. Only operate the machine when it is in an engaged position.
Battery pack
Charge the battery pack (13) before use.
If performance diminishes, recharge the battery pack.
Instructions on charging the battery pack can be found in the operating instructions of the Metabo charger.
Li-Ion battery packs “Li-Power” have a capacity and signal indicator (12):
– Press the button (11), the LEDs indicate the charge level.
– If one LED is flashing, the battery pack is almost flat and must be recharged.
Removing and inserting the battery pack
Removal: Press the battery pack release (10) button and pull the battery pack (13) downwards.
Inserting: Slide in the battery pack (13) until it engages.
6.4 Install parallel guide/ripping fence See illustration on page 2.

  1.  Place the parallel guide/ripping fence (18) as shown.
  2. Screw knurled screw (17) into one of the threaded holes.
  3.  Set the parallel guide/ripping fence (18) by turning to the desired angle.
  4. Firmly tighten the knurled screw (17).

Setting

Remove the battery pack from the machine / pull the plug out of the socket before making any adjustments, changing tools, carrying outmaintenance or cleaning.
Indexable inserts, holders for indexable inserts, workpiece and chips can be hot after work. Wear protective gloves.
Danger of crushing! Wear protective gloves.

7.1 Adjust scales (only when required)
The scales (14), (16) come with the correct settings from the factory. However, should they be adjusted, see chapter 9.3.

7.2 Set chamfer height
Read the set chamfer height at the graduated scale (14):

  1. Read the set chamfer height at the graduated scale (14). See illustration: Set chamfer height = 0.7 mm.
    (The scale (16) is used for the rough orientation during the setting process).metabo KFM 9 3 RF Bevelling Tool - fig3Change the chamfer height by turning the adjusting ring:

  2. Push the adjusting ring (15) downwards and turn.
    metabo KFM 9 3 RF Bevelling Tool - fig4
    The chamfer height can be set in 0.1 mm (0.004“) steps. Each full rotation results in a change of the chamfer height by 3.0 mm (1/8“).
    Remove max. 3.0 mm per cutting operation.
    Create larger chamfer heights in several cutting operations. Do not exceed the maximum permitted chamfer height (see chapter Technical Specifications).

  3. Carry out trial cut.

Use

8.1 Switching On and Off
Always guide the machine with both hands.
Switch on first, then guide the accessory towards the workpiece.
Avoid unintentional start-up of the machine: always switch off the machine, if the plug is pulled from the mains socket or if there was a power cut / if the battery pack was removed from the machine.
In continuous operation, the machine  continues running if it is forced out of yourhands. Therefore, always hold the machine with both hands using the handles provided, stand securely and concentrate.
Avoid the machine swirling up or taking in dust and chips. After switching off the machine, only place it down when the motor has come to a standstill.
Machines with slide switch:

Switching on: Push the sliding switch (5) forward.
For continuous activation, now tilt downwards until it engages.
Switching off: Press the rear end of the slide switch (5) and release it.

8.2 Working Directions
The speed can be preset via the thumb-wheel (7) and is infinitely variable.
Positions 1-6 correspond approximately to the following no-load speeds:

1 …….. 4500 / min
2 …….. 6200 / min
3 …….. 8100 / min| 4……. 9500 / min
5……. 10800 / min
6……. 11500 / min
---|---

The VC electronics make material-compatible work possible and an almost constant speed, even under load.
Speed recommendations for different materials:
Aluminium, copper, brass………………………… 4-6
Steel up to 400 N/mm2……………………………. 4-6
Steel up to 600 N/mm2……………………………. 3-5
Steel up to 900 N/mm2……………………………. 2-4
Stainless steel ……………………………………….. 1-3
The best way to determine the ideal setting is through a practical trial.

8.3 Working Directions
Note: When machining thin sheet metal (>=0.7mm) attach the butting ring (depending on design variant, order no.: 3.16.06.608.0). Read the operating instructions supplied with the butting ring.

  1. Check indexable inserts (22). Change damaged or worn indexable inserts.

  2. Set the chamfer height (see section 7.2).

  3. Always hold the machine with both hands on the intended handles, take a secure stance and concentrate on the work.

  4. First switch on, then place the machine with the support surface (19) onto the workpiece and only then put the tool close to the workpiece.

  5. When cutting, always work against the run of the disc (see illustration). Otherwise there is the risk of kickback. Cut with moderate material feed adapted to the material to be processed or selected speed. If the selected speed is too low and / or if the material feed is too high, strong vibrations can be caused (at the machine). Do not tilt, apply excessive force or sway from side to side.

  6. Guide the machine in such a way that the parallel guide (18) is in contact with the workpiece. If you work without parallel guide: Guide the machine in such a way that the ball-bearing stationary seal ring (21) is in contact with the workpiece.

  7. To finish work: Remove the tool from the workpiece, switch off machine. Let motor come to a stop, put down machine.

Maintenance

9.1 Change indexable inserts
Regularly check the holder for the indexable inserts (24). Repair/replace damaged or worn holders for the indexable inserts.
Regularly check all indexable inserts (22). Change damaged or worn indexable inserts.
Remove the battery pack from the machine / pull the plug out of the socket before making any adjustments, changing tools, carrying out maintenance or cleaning.
Indexable inserts, holders for indexable inserts, workpiece and chips can be hot after work. Wear protective gloves.
Turn/replace blunt indexable inserts or inserts where the coating is worn in due time. Blunt indexable inserts increase the risk of the machine getting jammed and climb out.
Always turn or replace all indexable inserts.
Use only indexable inserts approved by Metabo. See the Accessories Section.

  1. By turning the adjustment ring (15) to the stop, unscrew the holder for the indexable inserts (24) as much as possible – this provides good accessto the indexable inserts.
  2.  Press in the spindle locking button (2) and turn the holder for the indexable inserts (15) by hand until the spindle locking button (2) engages. Keep the spindle locking button (2) pressed.
  3.  Unscrew the fastening screw (23) and remove the indexable insert (22).
  4. Turn the indexable insert or, if all blades are blunt, replace the indexable inserts.
  5.  Fix again the indexable inserts (22) with a fastening screw (23). Torque: 5 Nm.
  6. Turn the adjusting ring (15) in the opposite direction, so that the holder for the indexable inserts (24) is again in its normal work range. (So that the maximum permitted chamfer height is not exceeded, see chapter Technical Specifications).

9.2 Replace ball bearing stationary seal ring (only if required):
Regularly check the ball bearing stationary seal ring (21) for smooth running. Replace defective ball bearing stationary seal ring. (order no.: 316093300)

  1. Remove screw (20) and remove ball bearing stationary seal ring.
  2. Put new ball bearing stationary seal ring (21) inplace and add screw (20), tighten firmly.

9.3 Adjust scale (only if required):
The graduated ring (14) comes properly set from the factory.
If indexable inserts are to be used for radii or if the settings should have been misaligned, the scale has to be adjusted as follows:

  1. Lift the adjustment ring (15) and turn in such a way that the indexable insert (22) does not remove any material. (chamfer height = 0 mm)
  2.  Loosen the two clamping screws (14).
  3. Turn the graduated ring (14) until the chamfer height 0 mm is shown.
  4. Tighten the two clamping screws (14).
  5. Carry out trial cut.

Cleaning

Chips and particles can deposit at the cutter head.
This can lead to blockage of the cutter head.
Regularly clean the cutter head and its surroundings and remove chips and particles.
It is possible that particles deposit inside the power tool during operation. This impairs the cooling of the power tool. Conductive build-up can impair the protective insulation of the power tool and cause electrical hazards.
The power tool should be cleaned regularly, often and thoroughly through all front and rear air vents using a vacuum cleaner or by blowing in dry air.
Prior to this operation, separate the power tool from  the power source and wear protective glasses anddust mask.

Troubleshooting

11.1 Mains powered machines:
– Overload protection: There is a MAJOR reduction in load speed. The motor temperature is too high! Allow the machine to run at idle speed until it has cooled down.
– Overload protection: There is a MINOR reduction in load speed. The machine is overloaded. Reduce the load before continuing to work.
– Metabo S-automatic safety shut-down: The machine has SHUT DOWN by itself. If the slew rate of the current is too high (for example, if the machine suddenly seizes or kickback occurs), the machine switches off. Switch off the machine using the slide switch (5). Switch it on again and continue to work as normal. Try to prevent the machine from seizing. See chapter 4.1.
– Restart protection: The machine does not start. The restart protection is active. If the mains plug is inserted with the machine switched on, or if the power supply is restored following an interruption, the machine does not start up. Switch the machine off and on again.
11.2 Cordless machines:
– The electronic signal display (9) lights up and the load speed decreases. The temperature is too high! Run the machine in idling until the electronics signal indicator switches off.
– The electronic signal display (9) flashes and the machine does not start. The restart protection is active. The machine will not start if the battery pack is inserted while the machine is on. Switch the machine off and on again.

Accessories

Use only original Metabo or CAS (Cordless Alliance System) battery packs and accessories.
Use only accessories which fulfil the requirements and specifications listed in these operating instructions.
Fit accessories securely. If the machine is operated in a holder: Secure the machine well. Loss of control can cause personal injury.

AIndexable inserts
HM-indexable insert 45°………………. 6.23560
HM-indexable insert R 2………………. 6.23561
HM-indexable insert R 3………………. 6.23562
B Chargers: ASC Ultra, ASC 15, ASC 30 and others
C Battery packs with different capacities. Buy battery packs only with voltage suitable for your power tool.
Order no.: 625592000 5.2 Ah (Li-Power)
Order no.: 625368000 5.5 Ah (LiHD)
Order no.: 625369000 8.0 Ah (LiHD) etc.
For a complete range of accessories, see
www.metabo.com or the catalogue.

Repairs

Repairs to electrical tools must ONLY be carried out by qualified electricians!
A defective mains cable must be replaced only with a special, original mains cable from Metabo available from the Metabo service.
Contact your local Metabo representative if you have Metabo power tools requiring repairs. See www.metabo.com for addresses.
You can download a list of spare parts from
www.metabo.com.

Environmental Protection

Observe national regulations on environmentally compatible disposal and on the recycling of disused machines, packaging and accessories.
Packaging materials must be disposed of according to their labelling in accordance with municipal guidelines. Further information can be found at www.metabo.com in the “Service” section.
Only for EU countries: Never dispose of power tools in your household waste! Used power tools must be collected separately andhanded in for environmentally compatible recycling in accordance with European Directive 2012/19/EUon waste electrical and electronic equipment and itsimplementation in national legal systems.
Special notes regarding cordless machines:
Battery packs may not be disposed of with regular waste. Return faulty or used battery packs to your Metabo dealer!
Do not allow battery packs to come into contact with water!
Before disposal, discharge the battery pack in the power tool. Prevent the contacts from short-circuiting (e. g. by protecting them with adhesive tape).

Technical Data

Explanatory notes on the specifications on page 3.
Changes due to technological progress reserved.
U = Voltage of battery pack
n = no-load speed (maximum speed)
P1 = Rated input power
P2 = Power output
m = Weight with smallest battery pack/weight without cord
Measured values determined in conformity with EN 62841.
Permitted ambient temperature during operation:
-20 °C to 50 °C (limited performance with temperatures below 0 °C). Permitted ambient temperature for storage: 0 °C to 30 °C
Machine in protection class II
~ AC Power
** Direct current
The technical specifications quoted are subject to tolerances (in compliance with the relevant valid standards).
Emission values
These values make it possible to assess the emissions from the power tool and to compare different power tools. The actual load may be higher or lower depending on the operating conditions, the condition of the power tool or the accessories. Please allow for breaks and periods when the load is lower for assessment purposes. Arrange protective measures for the user e.g. organisational measures based on the adjusted estimates.
Vibration total value (vector sum of three directions)
determined in accordance with EN 62841:
ah, SG =Vibration emission value
Kh,SG =Uncertainty (vibration)
Typical A-effective perceived sound levels:
LpA = sound-pressure level
LWA = Acoustic power level
KpA, KWA=Uncertainty
During operation the noise level can exceed 80 dB(A).
Wear ear protectors!
Problems, faults:**
In individual cases, the speed may fluctuate temporarily if the machine is exposed to extreme external electromagnetic disturbances or the electronic restart protection may respond. In this case, switch the machine off and on again.

www.metabo.com
Made in Germany

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