Hose connection:
screw the high pressure hose and the suction hose (through quick connector or 1/2” F thread) without using too
high torque.
Water plant connection:
incoming water must be clean, without corrosives and, if possible, without limestone. Maximum allowed
temperature for water is 60 °C. Connection requires a hose of at least ½” (Ø 13 mm internal) and 15 bar. Shorten if possible the
connection hose and eliminate every bottleneck on the hose. Minimum flow rate is 20 L/min.
Power connection:
before connecting, check if the electric plant respects safety requirements and if it is able output required power.
The plant must have safety switch and earth grounding. Before connecting, turn off the pump. Don’t connect other loads on the same
point. Using long power cords, be sure that section of every cable is right for the current flow, to avoid high temperatures and
dissipations.
Air blowing:
to avoid pressure oscillation due to air inside plant, it’s due eliminating all air inside plant to allow complete water plant
filling.
Working suggestions and Warnings
Working suggestions and Warnings
Pressure regulation device w/double valve allows working at desired pressure before filling the system.
•
Close the tap on the high pressure hose: read pressure = 0 on the test gauge
•
Turn fully counterclockwise the the pressure regulator
•
Start the motor switching the main switch
•
Turn the pressure regulator clockwise, until you reach the desired working pressure on the gauge on the pump (setting gauge)
•
Open the tap on the pressure hose
•
Fill the system
•
Close the tap and stop the pump
Close “TEST” valve, as the desired pressure has been reached.
In this way you’ll cut off from test the pump and all the input
plant, while you can continue checking pressure on gauge.
For long time tests, you can disconnect HELP instrument from the pump and
leave only it on the building site.
Don’t leave the pump “ON” with “TEST” valve closed.
After a few minutes the bypass water increases temperature and this could
damages gaskets.
Water temperature and air bubbles:
Water temperature and air bubbles can change pressure inside plant. Consider these factors
while testing big plants with big temperature differences.
High pressure water jets can cause damages if used improperly
. Avoid starting pump without connecting it to the plant.
High pressures can bring to explosions:
always consider your working pressure range before starting the test on the system:
otherwise you may damage things and persons
Work always in a safe way:
respect general safety instructions, don’t let that water flows inside pump, use safety shoes and glasses.
Respect electrical safety instructions:
maintenance and inspections are allowed only with the pump disconnected from power net.
Don’t stress the power cord, change it if damaged. Keep dry every electric part.
Check if high pressure hoses aren’t been damaged.
If necessary, change them with original spare parts. Work on them only with
the motor turned off and with pressure discharged.
Ensure always motor ventilation.
Verify that motor can have right air flow from the chassis.
Check
inlet filter
before every test.
Change oil
after 50 hours and then after 100 hours. Use
MGF
MGF
mineral oil (see below). This maintenance timing can change with harder
working conditions.
Art.
Description
790051
Oil for
MGF
MGF
Pumps 5 L tank
790050
Oil for
MGF
MGF
Pumps 0,5 L bottle
If you don’t use the pump for a long time, and / or in low temperature countries, pump a little amount of no frost solution inside the
pump. This will ensure long life to gaskets. Before restarting pump, turn the shaft from the hole on the chassis to unblock, if necessary,
valves.
Before starting, turn manually the shaft if necessary (gaskets glued).
Troubleshooting
Troubleshooting
The pump doesn’t reach the pressure:
check in order: inlet filter, air inside pump, valves, inlet connection, gaskets.
