Maintenance And Trouble Shooting - Pentair STA-RITE JET Manual De Instrucciones

EN
CHAPTER 6

MAINTENANCE AND TROUBLE SHOOTING

DANGER - ELECTRIC SHOCK RISK
Before doing any operation, make sure machine is disconnected from electric power supply.
Under normal conditions JET, NEWJET, JETINOX, GARDENJET, GARDY electropumps do not need any type of maintenance. In order
to avoid possible failures, it is advisable to periodically check the pressure supplied and current absorption. A decrease in pressure is a
symptom of wear. An increase in current absorption is a sign of abnormal mechanical friction in the pump and/or motor.
If the electropump is not going to be used for long periods of time (e.g. an entire season) it should be emptied completely, rinsed with
clean water and put in a dry place.
CLEANING THE HYDRAULIC PARTS
•
Empty the pump body using the drain
cap (pos. 10, fig. 1)
•
Unscrew the pump body fixing screws
•
By pushing with a plastic tool extract
the venturi unit from the suction point
and wash it with a spray of water
REPLACING THE SEAL
•
Disassemble the pump body and
unscrew the impeller
•
Extract the seal using a pliers and
pulling and rotating towards the end
of the shaft
PROBLEM
THE ELECTROPUMP DOES NOT PUMP WATER
THE MOTOR DOES NOT RUN
THE MOTOR RUNS BUT
THE ELECTROPUMP DOES NOT PUMP LIQUID
THE ELECTROPUMP STOPS AFTER RUNNING
FOR A SHORT PERIOD OF TIME BECAUSE
ONE OF THE THERMAL MOTOR PROTECTION
DEVICES TRIPS
If the problem has not been eliminated after carrying out the above operations contact the closest service centre.
8
•
When reassembling be very careful
to correctly insert the O ring, that is
mounted on the venturi unit, into the
suction point
•
Take off the seal holder flange (except
GRADY)
•
Extract the counterface by pushing
from the back side of the seal holder
flange
POSSIBILE CAUSE
1) No power.
2) Motor protection tripped.
3) Defective condenser.
4) Shaft blocked.
1) It is taking on air.
2) Wrong rotation direction.
1) Power supply does not conform to data on plate.
2) A solid object is blocking the impeller.
3) The liquid is too thick.
•
If the O ring is damaged replace it
•
Insertion the venturi unit into the pump
body must be done by hand
•
To assemble, the counterface and seal
must be inserted without using any
tools and by lubricating their seats
with alcohol
RIMEDY
Check if there is power and if the plug is plugged in
properly.
Verify the cause and reset the switch. If the thermal has
tripped wait until the system has cooled.
Replace the condenser.
Verify the cause and unblock the electropump.
Make sure that the joints are airtight.
Check that the level of liquid has not dropped below
the foot valve.
Check that the foot valve is airtight and is not blocked.
Reset the rotation direction.
Check the voltage on the power supply conductor
cables.
Dismantle the electropump and clean it.
Change electropump type.