Chapter 10
Rev. 2 of 19/01/98
SEITAL S.r.l.
Use and maintenance handbook: Centrifugal separator
SE 40CX
Page 10-3
10.3. Troubleshooting: causes and remedies
The following table shows the main problems that may happen during operation. The
probable causes and the remedies to adopt are still mentioned.
n°
TROUBLE
CAUSE
REMEDY
1
Revolving
speed
of
bowl
inferior to the rated one or
starting time being too long
(more than 4-5 min).
Wrong electrical connection.
Check voltage of mains and
make electric connection again.
Brake applied.
Release brakes by screwing
hand-wheel.
Motor operating in star-mode.
Check the electrical equipment.
Insufficient oil quantity into the
hydraulic coupling.
Add oil (§ 10.1).
Leakage of oil from hydraulic
coupling.
Check
hydraulic
coupling:
tighten oil plug and peripheral
nuts.
Replace
hydraulic
coupling, if necessary.
Some dirty slow down the
bowl.
Disassembly cover and bowl
and accurately clean them.
2
Electronic tachometer reads “0”
while bowl is running.
Wrong electrical connection to
magnetic pickup.
Check electrical connection and
make it again.
Wrong
distance
between
pickup and gear wheel.
Adjust distance at 1 mm.
Faulty pickup.
Replace faulty component.
Faulty tachometer on control
panel.
Check cause and replace faulty
component.
3
Standstill
bowl
while
tachometer reads rated speed.
Helical gear wheel unclamped
on horizontal shaft.
Tighten
locking
screws
of
helical gear wheel.
4
Bowl speed slows down during
working.
Insufficient oil quantity into
hydraulic coupling.
Add oil (§ 10.1).
Voltage drop.
Check voltage.
Dripping from bowl.
See at trouble n° 8), check
solenoid valves.
Motor
slows
down
during
working (one phase could be
interrupted).
Check motor.
