Troubleshooting - Metabo WA 12-125 Quick Operating Instructions Manual

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.
WA..., WBA..., WEA..., WEVA..., WEBA...,
W...RT: 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.
Avoid the machine swirling up or taking in dust
and chips. After switching off the machine,
only put it down after the motor has come to a
standstill.
Machines with slide switch:
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Switching on: Push the slide 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.
Machines with paddle switch
(with dead man function):
I
Switching on: Slide paddle switch (11) in the
direction of the arrow and then press the
paddle switch (11).
Switching off: Release the paddle switch (11).
Machines with the designation W...RT:
Torque activation (with dead man's lever)
I
Switching on: Slide the trigger switch (9) forwards
and then push the trigger switch (9)
upwards.
Switching off: Release the trigger switch (9).
Machines with the designation W...RT:
Continuous operation (depending on features)
I
Switching on: Switch the machine on as described
above. Now slide the trigger switch (9)
forwards again and release in the front
5
I
10
11
0
9
0
9
0
position to lock the trigger switch (9)
(continuous operation).
Switching off: Push the trigger switch (9) upwards
and release.
7.3 Working directions
Grinding and sanding operations:
Press down the machine evenly on the surface and
move 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.
Abrasive cutting-off operations:
Always work against the run of the disc
(see Figure). Otherwise there is the
danger of an out of control machine
kicking back from the cut. 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 / polishing work:
Press down the machine evenly.
7.4 Rotate gear housing
See illustration E on page 3.
- Disconnect from the power supply.
- Unscrew the fastening screw (a) of the lever (17).
Remove the screw, lever (with its sheet metal part)
and put aside.
- Unscrew the 4 gear housing screws (b).
CAUTION! Do not remove the gear housing!
- Turn the gear housing to the desired position
without removing it.
- Screw in the 4 gear housing screws (b) in the
available threads! Tightening torque = 3.0 Nm +/-
0.3 Nm.
- Slide the spring that pushes the lever in position to
the side and re-insert the lever (17) (with its sheet
metal part), and fix with the fastening screw (a).
Tightening torque = 5,0 Nm +/- 0,5 Nm. Check the
lever for correct function: it has to be under spring
tension.
8. Cleaning
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. Prior to this operation,
separate the power tool from the power source and
wear protective glasses and dust mask.

9. Troubleshooting

Machines with VTC, TC and VC electronics:
The electronic signal display (7) lights up
and the load speed decreases (not
W...RT). There is too much load on the
machine! Run the machine in idle until the
electronics signal indicator switches off.
ENGLISH en
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