Switching On And Off; Maintenance, Cleaning - Metabo BS 175 Manual Original

ENGLISH
ENG
If the grinding wheel is so badly worn that the
maximum distance of 2 mm can no longer be
maintained, the grinding wheel must be replaced.
8.3

Switching On and Off

Press the switch (11) (see illustrations D, page 3).
I = Switch on
0 = Switch off
DS 125, DS 150: Avoid inadvertent starts: always
switch the grinder off when the plug is removed
from the mains socket or if there has been a power
cut.
Restart protection (not in DS 125, DS 150):
When power is restored after a power failure, the
machine - which is still switched on - will not start
automatically for safety reasons. Switch machine
on and off again.
8.4 Dry grinding, belt sanding
- Stand in front of the grinder.
- Holding the workpiece with both hands, place
the workpiece on the workpiece supports (8) and
gently press it against the dry grinding wheel/
sanding belt. For optimum grinding/sanding
results, move the workpiece gently to and fro.
This also helps to distribute wear evenly on the
grinding material.
8.5 Wet grinding (TNS 175 only)
Only use the wet grinding wheel for grinding
when there is water in the water container.
(18). Roughly 1/3 of the wet grinding wheel should
be immersed in water. grinding results may
impaired if the water level is either too low or too
high.
- Stand to the left of the grinder, in front of the wet
grinding wheel.
- Holding the workpiece with both hands, lower it
onto the wet grinding wheel. You can also
support the workpiece on the levels on the water
container (18) and then lower the workpiece onto
the wet grinding wheel.
8.6 Adjusting the belt run (BS 175 only)
Unplug. Rotate the sanding belt manually.
Use the rotary knob (14) to adjust the
sanding belt so that it runs centrally on the sanding
belt roller.
14
13

9 Maintenance, cleaning

Clean, check and perform maintenance work on
the machine and guard devices regularly. Regu-
larly clean the inside of the grinding wheels and
belt grinder housing. The grinding wheels and
sanding belt must be able to rotate freely within the
housing.
Disconnect the mains plug before starting
any setting, cleaning, maintenance or repair
work.
9.1 Grinding wheel change
Use only original Metabo grinding wheels.
The permissible rotational speed specified
on the grinding wheel must be equal to or
greater than the maximum idling speed specified
on the identification plate of the machine.
Grinding wheel check:
suspend the grinding wheel on a thread.
Knock lightly with a piece of hard wood. You will
hear a clear tone if the grinding wheel is in perfect
condition. If you hear a clattering, dull or hollow
sound, the grinding wheel is damaged.
Do not use damaged grinding wheels.
Test run
A test run of approx. 5 min without load must
be carried out after the grinding wheel has been
changed. All persons must stay clear of the danger
zone when this is performed.
Dry grinding wheel:
- Release the screws on the safety guard cover (1),
twist and remove the cover (1) (bayonet catch).
- Hold the grinding wheel (4) firmly in position as
shown. Caution! Risk of injury! Wear protec-
tive gloves!