KARAT
®
130/164/300
GB
OPERATING MANUAL KARAT® 130/164/300
25
Motor makes too much noise.
Damaged windings.
The carbon brushes of the
machine are worn.
Have the motor inspected by
customer service.
Motor mildly overheats.
Motor overload.
Motor doesn’t cool sufficiently
Prevent motor overload when
drilling.
Remove the dust from the
motor, so that the cool air can
flow.
Motor runs. Core bit doesn’t
rotate.
Gearing defective.
Have the machine inspected by
the service facility.
Rate of drilling progress
decreases.
Core bit segments polished.
Water pressure/water flow rate
too high.
The core is stuck in the core bit.
Maximum drilling depth
reached.
Core bit defective.
Gearing defective.
The clutch is releasing prema-
turely or slipping.
Sharpen the core bit on a
sharpening plate while water is
flowing.
Use the feed lever to reduce the
water flow rate.
Remove the core.
Remove the core and use a core
bit extension.
Check the core bit for damage
and replace if necessary.
Have the machine repaired at a
service center.
Have the machine repaired at a
service center.
Motor cuts out.
The core bit has been jammed
for too long.
Electric power failure.
Electronics defective.
Free the core bit. Switch the
motor off and then on again.
Check the plug connections,
electric power supply and PRCD
protective switch.
Have the machine repaired at a
service center.
Water leakage at the water
swivel or gear housing.
Shaft seal defective.
Water pressure is too high.
Have the machine repaired at a
service center.
Reduce the water pressure.
repLaCemeNt parts
If – in spite of meticulous manufacturing and test-
ing processes – the device breaks down, have it
serviced by a B+BTec Service.
GuaraNtee
For this B+BTec appliance we grant a warranty in
accordance with the statutory/country-specific
provisions as from date of purchase (by evidence
of invoice or delivery note). Damage that has
occurred will be corrected either by replacement
or by repair.
Damage caused by improper handling is
excluded from the warranty.
Claims can be recognized only if the appliance
is presented in a not-disassembled manner to a
B+BTec branch office, your B+BTec field service
employee or a customer service office for power
tools authorized by B+BTec.
