13. Do’s and don’ts
Do’s
Don’ts
Use the Jet Unit with Foot valve provided with the
pump
Do not use piping smaller than what is mentioned on
the nameplate
Ensure leak proof joints on the suction side to prevent
air entry and therefore loss of priming
Provide sufficient space around the pumpset so as
to ensure proper airflow required for cooling of the
motor
Use as few joints as possible on the suction line
Restrict the number of joints on the cable. More the
cable joints, more will be the voltage drop
After installation, prime the pump
Do not place the jet unit right near the bottom of the
borewell / well as there is possibility for solids to be
entrained with water.
Rotate the shaft to ensure that pump is not jammed
Do not use pump for corrosive and flammable liquids
Ensure proper earthing is provided
Do not earth to a water line or gas line
Horizontal Jet Pumps are to be placed on a level
foundation. Grout the pump
Do not use undersized electric cables between Pump
and starter panel. Factor in low-voltage usage
While powering up the pumpset, ensure the direction
of rotation of the shaft matches the arrow marked on
the casing
Do not cover the product as this will prevent effective
cooling of the motor
Rubber gaskets assembled on the pumpset do not have
a central hole. Cut out the central hole and re-install
Do not keep the pump suction pipe tapering down
towards the pump suction to prevent air lock
Check if all fasteners are tight
Do not operate the pump at shut-off conditions
Motor portion of pumpset is IP44 protected. Provide
protection from rain
As far as possible, avoid the usage of elbows. Prefer
long radius bends
Operate the pump in the specified operating head
range
Do not use flexible pipes on the suction side as they
can get pinched and thereby affect the flow
Pump shall be used for pumping cold, clear water
Do not operate the pump beyond the specified
operating range
OMJP001A
36
2020.01
