HOLZMANN MASCHINEN DSM200DS, Operating Manual

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TROUBLESHOOTING
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at 29
DSM200DS
TROUBLESHOOTING
WARNING
Danger due to electrical voltage! Manipulating the machine with the voltage
source connected upright can result in serious injury or death. Disconnect the
machine from the power source before you begin work to eliminate defects!
Fault Possible Cause Correction
Motor does not start
 Low voltage  Check mains voltage
 Open circuit in motor or loose
connections
 Check line connections on the
motor for loose or open
connections.
 Short-circuit in cable or plug
 Check plug for damaged
insulation and short-circuited
wires.
Motor overheated  Motor overloaded  Reduce motor load
Engine stuck
 Short circuit in motor or loose
connections
 Low voltage
 Incorrect fuse or circuit breaker in
circuit
 Motor overloaded
 Check motor connections for
loose or short-circuited
terminals or burnt-out
insulation.
 Correct low voltage
 Install the correct fuse or
circuit breaker.
 Reduce motor load
Machine becomes slow
during operation
 Pressure too high  Decrease pressure
Machine vibrates
 Dirt on rotating parts
 Unequal wear of the grinding
wheel
 Cleaning
 Dressing the wheel
Wavy surface of the
workpiece
 Machine not mounted on a solid
surface.
 To hard grinding wheel or to high
feed speed
 Check whether the machine
has been securely mounted
on a solid surface and/or use
a holder to hold the
workpiece securely in place.
 Use softer grinding wheel or
reduce feed speed
Scratches on the surface
of the workpiece
 Contamination on the surface of
the pane
 Workpiece is not sufficiently held
in place
 Clean the surface of the
grinding wheel
 Use a holder to hold the
workpiece securely in place.
Spraying sparks or cracks
in the workpiece
 Incorrect grinding wheel
 Incorrect delivery
 No or too little) Coolant required
 Use softer grinding wheel or
grinding wheel with coarser
grain size
 Reduce the infeed of the
workpiece into the grinding
wheel.
 Add coolant system or add
coolant manually
Grinding wheel quickly
becomes blunt, grain falls
out
 Cutting depth too large
 grinding wheel is too soft for the
material to be machined
 Grinding wheel diameter too small
 Poor post-treatment of the
grinding wheel
 Defective grinding wheel bond
 Reduce the infeed of the
workpiece into the grinding
wheel.
 Select a softer bond
 Replace grinding wheel
 Treating the surface of the
grinding wheel
 Contact the manufacturer of
the grinding wheel.
Grinding wheel "clogged",
workpiece has
combustion markings
 Grinding wheel is too hard
 Coolant required.
 Choose a softer bond
 Add coolant system or add
coolant manually