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7 Troubleshooting
7.1 Troubleshooting
Trouble or fault
The drive wheel / saw-
ing wire don't begin to
rotate.
Possible cause
The wire passes round too
many and/or too acutely an-
gled (< 90°) concrete edges.
Initial tension on the wire is
too high.
The length of cut or contact
is too long.
The wire was fitted the
wrong way round (opposite
to specified direction of
travel).
New wire jams in an existing,
narrower kerf.
The sawing wire is dam-
aged.
The sawing wire is kinked in
places.
The connector is facing the
wrong direction.
The connector is thicker
than the sawing wire.
Action to be taken
▶ Chisel off or round off the
corners and pull the wire
through by hand until it
moves easily.
▶ Reduce the angle at
corners by mounting
additional return pulleys.
▶ Reduce the number of
corners by changing the
wire guidance system.
▶ Reduce the initial tension
by reducing the pressure.
▶ Divide the cut into several
individual sections.
▶ Reduce the contact length
by mounting additional
return pulleys.
▶ Check the direction of
travel and change if
necessary (leading edge
of bead is slimmer).
▶ Use a thinner wire.
▶ Repair or replace the
sawing wire if it is kinked
in places.
▶ Check that the connector
is fitted corresponding
to its direction of travel
and that it's thinner than
the sawing wire. Fit it
the other way round if
necessary.
▶ Check that the wire is
always used in the same
direction of travel. Change
the direction of travel if
necessary.
▶ Repair or replace the
sawing wire.
▶ Change the direction of
travel.
▶ Use a thinner connector.
English
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