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Examine the components carefully to ensure that no damage has occurred to the pump or motor during ship-
ment. Report damage immediately to the shipping carrier or to your dealer. The Webtrol Vertical Series pump
should remain in the shipping carton until it is ready to be installed. Do not drop or mishandle the pump prior to
installation.
Always check the pump label against the requirement to make sure you are installing the proper pump specified
for the job.
Make sure the pump suction, marked by an arrow on pump base,
is connected to the liquid source and the pump discharge, similarly
marked, is connected to the discharge line.
Caution: On three phase motor installations, always check for proper motor rotation prior to starting by
jogging the motor. Rotation must turn counter-clockwise when viewed from back of the motor.
Make sure the motor is correctly wired, refer to instructions on motor name plate.
Make sure that the pump base is firmly secured to a solid flat surface and that the suction and discharge lines
are aligned and properly supported to prevent pipe strain on the pump.
Ensure that the suction and discharge gaskets are properly installed to prevent leaks and that they do not
restrict the flow to or from the pump.
Standard ANSI mating flanges should be used to connect the pump to the piping. Suction and discharge piping
should be no smaller than the respective pump port sizes.
Remove the protective stickers in the suction/discharge flange prior to installation.
Isolation valves should be installed on both the suction and discharge side of the pump in the event service to
the pump is required.
Provide adequate space and ventilation around the pump for service and motor cooling.
Warning: Use standard plumbing practices to ensure unnecessary line losses, cavitation and prevent air lock.
Never operate the pump without water. A lack of water may cause severe damage to the internal components.
Completely prime the pump by removing the fill plug and opening the 9mm needle valve, in the vent plug, oppo-
site the fill plug. Using a funnel, fill the pump body with water until a steady stream of water comes out of the
small hole in the vent plug. Retighten the 9mm needle valve to complete process.
Alternatively for installations with positive suction heads, close the discharge valve and open the 9mm needle
valve in the vent plug. Open the suction valve until liquid flows out the hole in the vent plug and then retighten
the 9mm needle valve in the vent plug securely and open discharge valve.
Caution: Extreme caution should be used if priming the pump in this manner in a hot water application.
Replace the coupling guards if previously removed.
Warning: Operating the pump without the coupling guards in place can cause physical injury.
Pump Checks
Installation
- 6 -
Suction
Discharge
Side
Side
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