13. Do’s and don’ts
Do’s
Don’ts
Before installation, rotate the shaft to ensure that
pump is not jammed
Do not use piping smaller than what is mentioned on
the nameplate
Ensure proper earthing is provided
Do not place the pump at the bottom of the well as
it can sink in the mud at the well bottom. De-silt the
well and ensure the pump rests on a firm surface
Mount the Openwell Submersible on a level surface
Do not have multiple joints on the cable. More the
cable joints, more will be the voltage drop
Check the direction of rotation of the openwell
submerisible monoblock matches the arrow mark cast
on the volute casing
Do not remove the strainer as debris can get sucked
into the pump and jam it
Rubber gaskets assembled on the openwell
submersible monoblock do not have a central hole.
Cut out the central hole and re-install
Do not use to pump corrosive and flammable liquids
Check all fasteners are tight
In case of high delivery head, use a check valve in the
discharge line
Do not use undersized electric cables between Pump
and control panel. Factor in low-voltage usage
In case of flooded suction, ensure that the pump
suction is kept above the motor body to prevent
the motor from getting exposed during running and
resulting in poor heat dissipation
Do not use the power cable for lifting / lowering the
pump. Use the eye bolts provided on the motor body
Water levels rise significantly during monsoons.
Under such conditions, pumps will operate with higher
discharges and therefore higher current. It is advisable
to install a flow control valve in the delivery pipeline
and throttle the discharge till the current is less than
that specified on the product nameplate
Do not keep the pump idle for a long time to prevent
jamming of the rotating components. Run the pump
for a few minutes every week
Ensure the position of pump strainer (TSSM and SSM)
is located above the motor to prevent water level from
dropping below the motor body
Do not operate the pump at shut-off conditions to
prevent the pumpset from getting overheated
OMOW002A
30
2020.01
