Publicidad
Idiomas disponibles
Idiomas disponibles
en - Original instructions
Use suitable equipment and
protection.
Make sure that the drained liquid
does not cause damage or injuries.
6.1
Service
If the user wishes to schedule regular maintenance
deadlines, they are dependent on the type of
pumped liquid and on the operating conditions of
the pump.
Contact the local sales and service representative
for any requests or information regarding routine
maintenance or service.
Extraordinary maintenance may be necessary to
clean the liquid end and/or replace worn parts.
Pumps with regreaseable bearings
Regrease at 4000 operating hours, but at
least once per year. Clean lubrication nipples
(SN) first.
Use NLGI Grade 2 grease or equivalent.
Contact the local sales and service representative
for any requests or information.
Motor bearings
After approximately five years, the grease in the
motor bearings is so aged that a replacement of the
bearings is recommended. The bearings must be
replaced after 25000 operating hours or according
to the motor supplier maintenance instructions,
whichever is shorter.
Motor with greased for life bearings
Motor with greased for life bearings do not require
any scheduled routine maintenance.
Motor with regreasable bearings
Follow motor supplier maintenance instructions.
Coupling
Check the clearance in the coupling elements
regularly, at least once a year. We recommend
checking every 1000 operating hours or every
three months, whichever comes first.
6.2
Inspection checklist
Check the
Check the flexible elements of
coupling
the coupling. Replace the
relevant parts if there is any
sign of wear and check the
alignment.
Check the
Check for leakage of the
mechanical
mechanical seal. Replace the
seal
mechanical seal if leakage is
found.
Checking the
Check correct seating of axial
bearing seals
seal rings mounted on the
shaft. Only gentle contact of
the sealing lip shall be
established.
Check for
Check frequently for quiet
quiet running
running of the pump with
vibration measurements tools.
22
6.3 Disassemble and replace the pump
parts
For more information about spare parts and
assembly and disassembly of the pump, contact
the local sales and service representative.
7 Troubleshooting
7.1 Troubleshooting for users
The main switch is on, but the electric pump does
not start
Cause
The thermal
protector
incorporated in the
pump (if any) has
tripped.
The protective
device against dry
running has tripped.
The electric pump starts, but the thermal
protection trips a varying time after.
Cause
There are foreign
objects (solids or
fibrous substances)
inside the pump
which have
jammed the
impeller.
The pump is
overloaded
because it is
pumping liquid that
is too dense and
viscous.
The pump runs but delivers too little or no liquid.
Cause
Remedy
The pump is
Contact the Sales and
clogged.
Service Department.
The troubleshooting instructions in the tables
below are for installers only.
7.2 The main switch is on, but the
electric pump does not start
Cause
There is no power
supply.
The thermal
protector
incorporated in the
pump (if any) has
tripped.
The thermal relay or
motor protector in
the electric control
panel has tripped.
Remedy
Wait until the pump has
cooled down. The
thermal protector will
automatically reset.
Check the liquid level in
the tank, or the mains
pressure.
Remedy
Contact the Sales and
Service Department.
Check the actual power
requirements based on
the characteristics of the
pumped liquid and then
contact the Sales and
Service Department.
Remedy
Restore the power
supply.
Make sure all
electrical
connections to the
power supply are
intact.
Wait until the pump has
cooled down. The
thermal protector will
automatically reset.
Reset the thermal
protection.
Publicidad
