15
Troubleshooting
SYMPTOM
POSSIBLE CAUSE
ACTION
The machine will not start/run.
No power is available at cable
end.
Check and confirm the power
cable is available.
Machine is trying to start on
glue or other sticky substance.
Clear a patch with scraper and
grind into the glue a little,
preventing glue built-up on the
diamonds.
Power lead is too small in capa-
city or too long.
Upgrade power lead to 2,5 mm2
(15 m max.) or 4 mm2 (30 m
max.).
Machine is not grinding at all.
No blade/accessories in unit.
Fit blade and check wear on
machine.
Very hard concrete or glazed
topping on concrete.
Turn dust extractor down, the
extra dust acts as an abrasive
between the segments, making
diamonds work better.
Place river sand or equivalent on
the floor as an abrasive as descri-
bed above.
Use s softer grade of diamond
tool, which will expose the dia-
monds better.
Use a a coarser diamond tool,
which will get through the hard
topping without wearing our
the diamonds too fast.
The grinder runs for 5-15 sec.,
then stops.
The current allow screw is not
adjusted properly.
Adjust the current screw to the
right position.
Extension cable is too long
and/or not made from a heavy
enough cable.
Get an electrician to check the
extension cable‘s compatibility.
The grinder runs but does not
perform adequately.
Motor defect.
Repair or replace the motor.
The grinder vibrates during use. The grinding plate is not correct-
ly balanced.
Replace or re-balance the plate.
Grinding noise coming from
grinding head when up on
jockey wheel.
Motor bearings are worn out.
Have motor serviced.
Содержание BS 250
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