Tsurumi PU Submersible Vortex Sewage Pump - Manual (Page 8)

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Precautions During Installation
WARNING When installing the pump, be mindful of the pump's center of gravity and
weight. If the pump is not suspended properly, the pump may fall and break,
which may lead to injury.
CAUTION When installing or moving the pump, never suspend the pump by the cabtyre
cable. Doing so will damage the cable, which may cause a current leakage,
electrical shock, or fire.
Refer to the installation examples illustrated below and pay attention to the points de-
scribed below to install the pump.
CAUTION During piping work if the welding sparks, paint, or concrete come in contact
with the pump, they could cause the pump to malfunction, which may lead to
current leakage or electrical shock.
Free Standing Specification Guide-Rail Specification
Hook
Control Panel
Terminal Box
Manhole
Guide Support
Cabtyre Cable
Start Position
Chain
Cabtyre Cable
Chain
Non-return Valve
Gate Valve
Pipe
Guide Pipe
Pump
Duck foot Bend
Stop Position
Baffle Plate
Gate Valve
Hook
Control Panel
Terminal Box
Manhole
Baffle Plate
Start Position
Stop Position
Pump
Pipe
Non-return Valve
(1) When transporting or installing the pump, do not kink the cabtyre cable or use it in
place of a rope.
(2) With the cabtyre cable lifted slightly, secure it to the hook (a hook must be prepared in
advance by placing it on the frame of a manhole or the like).
CAUTION Do not operate the pump with the cabtyre cable dangling. Failure to observe
this precaution may cause the cabtyre cable to become wrapped around the
impeller, which could cut the cable, break the impeller, or cause flooding,
which may lead to current leakage or electrical shock.
(3) Install the pump on top of a horizontal surface such as concrete, in an area that is free
of turbulence and does not cause the pump to take air in.
(4) The area near the inlet of a water tank is susceptible to turbulence or allows the pump
to take air in; therefore, place the pump and the float switch away from the inlet or in-
stall a baffle plate.
(5) Properly perform piping work so as not to create any air pockets in the middle of
piping.
CAUTION With automatic control, the sewage water in the pipe could flow backwards,
causing the water surface control to react immediately. As a result, the pump
will operate ON/OFF repeatedly, which could cause the pump to malfunction.
(6) Install a non-return valve if the pump tank is deep, or if the vertical head or the lateral
distance is long.