Piusi CUBE B.SMART, Installation, Use And Maintenance Manual

Page: 50 / 60

Installation, use and maintenance
M0546
50
/60
21 TROUBLESHOOTING
21.1 MECHANICAL AND HYDRAULIC PROBLEMS
PROBLEM POSSIBLE CAUSES POSSIBLE SOLUTIONS
THE MOTOR
DOESN’T
TURN
Lack of power Set the ON/OFF switch on the pump to
the ON position.
Reset the external differential switch
Check electrical connections
Fuses blown Replace fuses in the electric panel
Motor problems If the rotor is blocked, disassemble
and check for damage or obstruction
and reassemble. Contact the customer
service.
THE MOTOR
DOES NOT
START AGAIN
WITH THE
NOZZLE
CLOSED
Supply voltage too low Check that the supply voltage is not 5%
lower than the normal V.
FLOW RATE
LOW OR ZERO
Excessive suction vacuum Lower CUBE B.SMART in relation to the
level of the tank or increase the section
of the pipes.
High pressure drops in the circuit Use shorter or larger diameter pipes
Suction pipe resting on the bottom of the
tank
Raise the suction pipe
Low suction tank level Refill the tank.
Air entering the suction pipe or the pump Check the tightness of the connections
and the level of the diesel in the tank
Low motor rotation speed Check the voltage to the motor: adjust
the voltage or/and use cables with a
greater section
Check valve blocked Clean or replace
Tank filter clogged Clean the filter
Pump filter clogged Clean the filter
Fluid loss Check the tightness of the connections
and the condition of the rubber hoses
Flow meter chamber obstructed Clean the flow meter chamber
INSUFFICIENT
FLOW METER
ACCURACY
Presence of air in suction Check the tightness of the connections
Calibration insufficient Calibrate the flow meter
THE NOZZLE
TRIPS TOO
OFTEN
Automatic stop probe hole blocked Clean the automatic stop probe hole
from dirt and/or obstructions