Machine Disabling; Residual Risks After Disabling - Pentair STA-RITE DHI 2-40 Instructions De Service

EN
PROBLEM
THE MACHINE FLOW RATE IS IRREGULAR
THE MACHINE RUNS BUT FAILS TO SUPPLY FLUID
WHEN STOPPED THE MACHINE RUNS IN OPPOSITE
DIRECTION
CHAPTER 7
DEMOLITION

7.1 MACHINE DISABLING

• Cut the system off using the cut-off
switch
• Close the gates on the suction and
delivery lines
• Loosen the screws that fix the terminal
block cover
• Disconnect the wires from the terminal
block
To re-use the machine, perform the following operations:
• Reposition the priming and drainage
caps on the machine
• Reposition the terminal block cover
with the related gasket
NOTE
PENTAIR INTERNATIONAL S.a.r.l. shall not be liable of parts of the machine are recycled or re-used.

7.2 RESIDUAL RISKS AFTER DISABLING

WARNING
The machine has been manufactured with non biodegradable materials. The machine should be dismantled only in a deposit
equipped for these operations.
32
CAUSES
1) The suction pipe is undersized.
2) The availability of fluid to be sucked is insufficient.
3) The fluid level is too low.
4) The pressure on the suction side is insufficient.
5) The suction pipe is partially obstructed.
1) The suction pipe or pump are obstructed.
2) The bottom (or stop) valve is blocked in closed position.
3) Leaks in the suction line.
4) Air in the suction line or pump.
1) Leaks in the suction pipe.
2) Faulty bottom (or stop) valve.
3) The bottom (or stop) valve is blocked in partially or fully opened position.
• Remove the supply cable from the
cable holder
• Remove the priming and drainage caps
• Allow all the fluid to drain from the
machine
• Loosen the screws that fix the
machine to the base
• Tighten the screws that fix the
terminal block cover
• Close the delivery and suction holes to
prevent dirt from entering inside the
machine
• Lift the machine as described under
"Installation", "Lifting" -Transport
the machine as indicated under
"Installation", "Transportation"
• Store the machine as indicated in
"Installation", "Storage"