Troubleshooting - Husqvarna DC 6000 Workshop Manual

9

Troubleshooting

WARNING! Most accidents involving machines occur during trouble shooting, service and maintenance as staff have
to locate themselves within the machine's risk area. Prevent accidents by being alert and by planning and preparing
the work�
The engine should be switched off during operations described in this chapter unless otherwise stated.
All checks involving electric components should only be performed by a licensed electrician.
Fault indication
The machine does not
run
The machine makes a
low humming sound
when switched to ON
The machine is blowing
instead of sucking when
on a different power
source
The machine will run
but there is not power
at the accessory power
outlet
The machine does not
have much suction
The machine is blowing
dust out the exhaust
Purge does not clean
filter and/or does not
work�
Compressor running
continuously�
*If there are large amounts of dust in the filter housing it means that there is some kind of problem with the filter.
28
TROUBLESHOOTING TROUBLESHOOTING
Possible cause
The machine has no incomming or
outgoing power�
Damaged cables.
Circuit breaker has triggered.
Phase error� Only two phases present�
Switch off machine immediately to aviod
motor burn-out�
Dust in the motor impellers�
Burned out motor.
Phase relay fault�
Unit not correctly connected.
Contact problems in electrical cabinet�
The filter is blocked
Cyclone is clogged.
The filter is not correctly fitted.
The filter has become detached.
Holes or perforations in the cone filter.
Compressed air hose has come loose or
broken�
Filter on compressor is clogged.
Filter on compressor is clogged.
Possible action
Check that the power cable is connected and
the machine turned on.
Have a licensed electrician check the pres-
ence of power at the top of the left side
contactor� If no power at the contactors, test
for presence of power at the power source�
Contact a licensed electrician.
Make sure the circuit breaker is active�
Contact a licensed electrician.
Contact a licensed electrician.
Contact your service agent�
Unplug the machine and have a licensed
electrician change L1 and L3 on the motor
and test for suction to confirm failed phase
relay�
Check that the unit is correctly connected
and properly powered up. (Eg. safety breaker
and emergency stop are in the correct posi-
tion on the grinder.)
Contact a licensed electrician.
Clean or replace the filter.
Use compressed air or a brush to clean the
cyclone screw and container.
Ensure the filters are fitted correctly.
Ensure the filters are fitted correctly.
Replace the filter.
Check the hoses from the compressor, pres-
sure switch and purge tank.
Clean or change the filter on the compressor.
Clean or change the filter on the compressor.