METABO WEV 850-125 (01) PDF Document

The METABO WEV 850-125 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. Operations such as polishing are not to be performed with this power tool. Improper use of the machine will void the warranty as the motor may overheat and damage the electric power tool.

Before commissioning the METABO WEV 850-125, check that the rated mains voltage and mains frequency stated on the type plate match your power supply. It is recommended to always install an upstream GFCI with a maximum trip current of 30 mA.

Always work with the additional handle (10) attached. Attach the additional handle on the left or right of the machine 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. Ensure you use only accessories that are covered by at least 3.4 mm by the safety guard.

For models W 750-100, W 750-115, W 750-125, W 850-100, W 850-115, W 850-125, WP 850-115, WP 850-125, WEV 850-115, WEV 850-125, W 900-115, W 1100-115, W 1100-125:

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

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

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

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).

For models WP 1100-115, WQ 1100-125, WEQ 1400-125:

1. Push and hold the lever (18). Place the safety guard (11) in the position indicated.

2. Release the lever and rotate the guard until the lever latches.

3. Push the lever and turn the safety guard until the closed section is facing the operator.

4. Make sure that the guard is attached securely: The lever must engage and you should not be able to turn the safety guard.

Prior to any conversion work, pull the mains plug out of the socket. The machine must be switched off and the spindle at a standstill. For reasons of 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:

1. Fit the support flange (2) on the spindle. The flange should not turn on the spindle when properly attached. For W…-100 models only, screw the support flange with a two-hole spanner onto the spindle so that the small collar (with diameter 16 mm) is facing upwards.

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

Securing/Releasing the “M-Quick” clamping nut:

Securing (Only for WQ1100-125; WEQ 1400-125): Do not use the “M-Quick” clamping nut if the accessory has a clamping shank thicker than 7.1 mm. In this case, use the 2-hole nut (12) with 2-hole spanner (13).

1. Lock the spindle.

2. Position the “M-Quick” clamping nut (1) on the spindle (3) so that the 2 lugs engage in the 2 grooves on the spindle.

3. Tighten the “M-Quick” clamping nut by turning it clockwise by hand.

4. Turn the grinding wheel firmly clockwise to tighten the “M-Quick” clamping nut.

Releasing: The “M-Quick” clamping nut (1) must be attached before the spindle locking button (4) can hold the spindle. The machine continues to run after switching off. Press in the spindle locking button (4) just before the grinding wheel stops. The “M-Quick” clamping nut (1) is released.

Securing/Releasing the 2-hole nut:

Securing: The 2 sides of the two-hole nut are different. Screw the two-hole nut onto the spindle as follows:

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

• Y) 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.

• Z) Only for W…-100: The collar of the two-hole nut faces downwards and/or the flat surface faces upwards.

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

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

Securing/releasing the (tool-free) clamping nut:

Only tighten the (tool-free) clamping nut (14) by hand. For the machine to operate, the clip (15) must always lie flat on the clamping nut (1).

Securing: Do not use the clamping nut (tool-free) if the accessory has a clamping shank thicker than 6 mm. In this case, use the 2-hole nut (12) with 2-hole spanner (13).

1. Lock the spindle.

2. Flip up the clip (15) on the clamping nut.

3. Fit the clamping nut (14) on the spindle (3).

4. Tighten the clamping nut on the clip (15) manually in a clockwise direction.

5. Flip down the clip (15) again.

Releasing: Lock the spindle. Flip up the clip (15) on the clamping nut. Unscrew the clamping nut (14), turning it anticlockwise manually. Note: If the clamping nut is very tightly secured (14), you can also use a two-hole spanner to unscrew it.

Set the recommended speed using the thumbwheel (7). A lower number equals a lower speed, while a higher number equals a higher speed.

• Cutting disc, roughing disc, cup wheel and diamond cutting disc: high speed

• Brush: medium speed

• Sanding plate: low to medium speed

Note: It is recommended to use an angle polisher for polishing work.

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

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.

Machine with paddle switch (with deadman function – Machines with the designation WP…):

• 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).

• 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. For 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, impairing its 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.

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. To reduce your exposure to these chemicals, work in a well-ventilated area and with approved safety equipment, such as dust masks specially designed to filter out microscopic particles.

Reduce dust exposure with the following measures:

• 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.

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 back on again.

This applies to WEV 850-115, WEV 850-125, and WEQ 1400-125 models only. If the speed drops, there is too much load on the machine. Allow the machine to run at idle speed until it has cooled down.

Always use the suitable accessory and the prescribed guard for the matching application. The illustrations are examples.