Instructions

20
9 Troubleshooting
IMPORTANT
Troubleshooting may only be carried out by authorised qualified staff.
The qualified personnel must only use tools suitable for the application.
Fault
Possible cause
Troubleshooting
Action
Vibrator does
not start or
runs at too
low speed
Phase interruption
Check fuse and
connecting cable
Replace fuse and/or connect-
ing cable
Mains voltage too low
Check mains voltage and
cable cross-section
Check if mains voltage is cor-
rect,
replace cable
Vibrator
speed drops
under load
Wiring wrong
Check circuit diagram
Inadequate contact of a
connection point
Check connection in
terminal box
Tighten terminal nuts
Phase interruption
Check fuse and
connecting cable
Replace fuse or connecting
cable
Incorrectly dimensioned
connecting cable
Check cable cross-
section
Replace cable
Overload
Check setting of
unbalances
Reduce unbalances
Mains voltage too low
Check mains voltage and
cable cross-section
Check if mains voltage is cor-
rect, replace cable
One phase
without
current
Phase interruption
Check the connecting
cable
Replace cable
Excessive
heating of
stator
winding
Wiring wrong
Check circuit diagram
Overload
Mains voltage too low
Check mains voltage and
cable cross-section
Check if mains voltage is cor-
rect, replace cable
Vibrator
hums
Phase interruption
Check fuse, mains voltage
and connecting cable
Correct mains voltage,
replace fuse and/or cable
Short-circuit between turns
in the stator winding
Replace vibrator
Circuit
breaker fails
when
switched on
Phase interruption
Check fuse and
connecting cable
Replace fuse and/or cable
Overload
Check unbalance settings
Reduce unbalance
Short circuit in winding
Replace vibrator
High current
consumption
Natural resonance range of
vibration system
Measure current
consumption
Stiffen device
Bounce impacts
Measure current
consumption
Reduce power of vibrator
Loose fastening
Tighten screws
Bearings too
warm
Too much grease in
bearings
Fill in correct amount of grease:
Klueber Staburags NBU 8 EP.
No grease in bearings
Fill in correct amount of grease:
Klueber Staburags NBU 8 EP.
Foreign body in bearings
Clean bearings, replace if necessary.