METABO W 900-115 (01) PDF Document

The METABO W 900-115 angle grinder, when fitted with original Metabo accessories, is suitable for grinding, sanding, separating, and wire brushing metal, concrete, stone, and similar materials without the use of water. The user bears sole responsibility for any damage caused by inappropriate use. Generally accepted accident prevention regulations and enclosed safety information must be observed.

To reduce your exposure to dust and the chemicals it may contain, follow these measures:

Step 1. Observe the relevant guidelines and national regulations for your material, staff, application, and place of application (e.g., occupational health and safety regulations, disposal).

Step 2. Collect the particles generated at the source and avoid deposits in the surrounding area.

Step 3. Use suitable accessories for special work to prevent fewer particles from entering the environment in an uncontrolled manner.

Step 4. Use a suitable extraction unit.

To further reduce dust exposure:

– Do not direct the escaping particles and the exhaust air stream towards yourself, nearby persons, or dust deposits.

– Use an extraction unit and/or an air purifier.

– Ensure good ventilation of the workplace and keep it clean using a vacuum cleaner. Sweeping or blowing stirs up dust.

– Vacuum or wash protective clothing. Do not blow, beat, or brush protective gear.

Always work with the additional handle (10) attached. Attach the additional handle on the left or right of the METABO W 900-115 and secure it.

For safety reasons, only use the guard provided for the respective accessory. Using an incorrect guard can lead to loss of control and serious injuries. For the METABO W 900-115, follow these steps:

Step 1. Loosen the clamping screw (16) until the clamping ring (17) on the safety guard expands sufficiently.

Step 2. Place the safety guard (11) in the position indicated in the manual illustrations.

Step 3. Turn the safety guard until the closed section is facing the operator.

Step 4. Tighten the clamping screw (16) firmly. Make sure that the guard is seated securely; you should not be able to turn the safety guard (11).

Note: Use only accessories that are covered by at least 3.4 mm by the safety guard.

Before any conversion work, pull the mains plug out of the socket. The machine must be switched off and the spindle at a standstill. For safety, attach the cut-off grinding guard before performing cut-off grinding work.

Locking the spindle:

Press in the spindle locking button (4) and turn the spindle (3) by hand until the spindle locking button engages.

Placing the grinding wheel in position:

Step 1. Fit the support flange (2) on the spindle. The flange should not turn on the spindle when properly attached.

Step 2. Place the grinding wheel on the support flange (2). The grinding wheel must lay flat on the supporting flange.

The two sides of the two-hole nut are different. Screw the two-hole nut onto the spindle as follows:

Securing the 2-hole nut (12):

– For thin grinding discs: The edge of the 2-hole nut (12) faces upwards so that the thin grinding disc can be attached securely.

– For thick grinding discs: The edge of the two-hole nut (12) faces downwards so that the two-hole nut can be attached securely to the spindle.

To secure, lock the spindle. Turn the two-hole nut (12) clockwise using the two-hole spanner (13) to secure.

Releasing the 2-hole nut:

Lock the spindle. Turn the two-hole nut (12) anticlockwise using the two-hole spanner (13) to unscrew.

Always guide the machine with both hands. Switch on first, then guide the accessory towards the workpiece.

For machines with a slide switch:

– Switching on: push the slide switch (5) forwards. For continuous operation, tilt it downwards until it engages.

– Switching off: press the rear end of the slide switch (5) and release it.

For machines with a paddle switch (with deadman function):

– Switching on: Slide the switch-on lock (9) in the direction of the arrow and press the trigger (8).

– Switching off: Release the trigger switch (8).

Important notes:

– Avoid inadvertent starts: always switch the tool off when the plug is removed from the mains socket or if there has been a power cut.

– The machine must not be allowed to draw in additional dust and shavings. When switching the machine on and off, keep it away from dust deposits. After switching off the machine, only set it down when the motor has come to a standstill.

– In continuous operation, the machine continues running if it is forced out of your hands. Therefore, always hold the machine with both hands using the handles provided, stand securely and concentrate.

Grinding and sanding operations: Press down the machine evenly on the surface and move it back and forth so that the surface of the workpiece does not become too hot.

Rough grinding: Position the machine at an angle of 30° – 40° for the best working results.

Cut-off grinding: Always work against the run of the disc. Otherwise, the machine may kick back from the cut in an out-of-control manner. Guide the machine evenly at a speed suitable for the material being processed. Do not tilt, apply excessive force, or sway from side to side.

Wire brushing: Press down the machine evenly.

Particles may become deposited inside the power tool during operation, which impairs cooling. Conductive build-up can impair the protective insulation and create an electrical hazard.

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 and a suitable dust mask. Ensure appropriate suction is available when blowing out vents.

If 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. To resolve this, switch the machine off and back on again.

Always use the suitable accessory and the prescribed guard for the matching application. Only use accessories that fulfill the requirements and specifications listed in the operating instructions.

Applications and Accessories:

– For surface grinding (1), use a grinding wheel (1.1), cup wheel (ceramic) (1.2), or diamond cup wheel “masonry/concrete” (1.3).

– For cut-off grinding (2), use a cut-off wheel “metal” (2.1), cut-off wheel “masonry/concrete” (2.2), diamond cutting disc “masonry/concrete” (2.3), or a dual-purpose diamond cutting disc (2.4).

– For drilling holes (3), use diamond drill bits (3.1).

– For wire brushing (4), use a wheel brush (4.1) or cup brush (4.2).

– For grinding with sanding paper (5), use a flap disc (5.1) or a backing pad for sanding sheets (5.2).

Prescribed Guards:

– **Type A:** Cutting guard / guard incl. cutting guard slip for cutting-off operations.

– **Type B:** Guard for grinding.

– **Type C:** Guard for grinding and cutting-off operations (combination).

– **Type D:** Guard for cup wheel.

– **Type E:** Extraction guard for surface grinding.

– **Type F:** Extraction guard for cutting-off operations.

Key to specifications:

– Ø: max. diameter of the accessory

– tmax,1: max. permitted thickness of the clamping shank on accessory when using two-hole nut (12)

– M: Spindle thread

– l: Length of the sanding spindle

– n0: No-load speed (maximum speed)

– P1: Rated input power

– P2: Power output

– m: Weight without mains cable

– ah, SG: Vibration emission value (surface grinding)

– ah, DS: Vibration emission value (sanding with sanding plate)

– Kh,SG/DS: Uncertainty (vibration)

– LpA: Sound-pressure level

– LWA: Acoustic power level

– KpA, KWA: Uncertainty