INSTRUCTIONS FOR USE
29
LM05EN002
PROBLEMS
CAUSES
SOLUTIONS
unit. Replace oil if contaminated.
Worn guides
Replace the guides (contact the
Technical Service).
Ambient temperature close to the
limits of use
Contact the Technical Service.
Pump placed on an inclined plane
In this case, internal lubrication is
reduced.
Follow the instructions given in
C.3.1
ELECTRICAL
MOTOR
OVERHEATING:
CHECK
THE
POWER
CONSUMPTION ON THE THREE
PHASES AND COMPARE IT WITH
THE MOTOR’S PLATE VALUES
The load is excessively high for the
machine motor power.
Contact the Technical Service
Electrical cables too long or with
insufficient section
Contact an electrician.
Mains voltage drop or phase
imbalance.
Contact an electrician.
Contact
your electrical
service
provider
Insufficient ventilation
Check that the area around the
motor
is
suitable
for
proper
ventilation, free from dirt and foreign
bodies.
Check the fan.
NOISE AND THROBS INSIDE THE
PUMP
Loose “rod” nut
Tighten it firmly
Foreign body inside the cylinder
To check if the throbs are caused by
the aforementioned reasons, it is
necessary to let air into the intake: if
the noise stops, it is only caused by
the liquid flowing in the cylinders
Excessive suction head
Comply with the indications given in
F.6 as far as possible
Contact the Technical Service
Restrictions in the pipes
Pipes with insufficient diameter
THE ENGINE ROTATES IN THE
OPPOSITE
DIRECTION
WITH
RESPECT
TO
THE
ONE
INDICATED ON THE BELT COVER
Incorrect connection of the three
phases in the connection to the
mains
Swap any two phases in the
connection.
In case of problems not described above, contact the Technical Service of Ragazzini S.r.l.
