EVMS/EVMSL
- 14 -
６
Operation
Warning
Do not operate the pump for more than 1 minute with the
discharge valve left closed.
The pressure within the pump will rise, and the casing or plugs
may be damaged.
Do not touch the rotating parts such as the spindle, shaft
couplings, V-pulleys, etc. while the pump is running. Since
these parts rotate at high speed, doing so could result in injury.
If air is entrained during pumping and is not discharged, the
bearings and shaft seals may be damaged, and pumping may
be impossible. Avoid this situation.
Do not touch the pump when the liquid handled is warm water.
Burns may result from high temperatures.
Never touch the motor. Burns may result from high
temperatures.
Do not cover the motor with blankets, cloths, etc. Fires may
result from overheating.
1. Prior to start up
(1) Before driving a pump, please be sure to go on Flushing in the laying of the pipes. Please
install a strainer in the suction side so that alien substance (chip of laying of the pipes, sand,
patina and the scale) etc. doesn't get mixed in a pump at this time. I have to do Flushing, a
mechanical sticker and rotating part generate abnormal wear. Please make sure that the
strainer won't cause clogging at the time of pump driving.
(2) Ensure that the power switch is OFF. Rotate the coupling manually, and check that it rotates
easily. Inspect the pump if the movement is hard or non-uniform.
(3) Be sure to perform pump priming, as operation of the pump without priming could cause
breakdown. Priming is to be done through the following methods.
（
a
）
With pouring and pressing
Perform pump priming with opening the air vent plug, suction valve and discharge valve
only when it is possible to fill the pump with water using pouring and pressing.
（
b
）
With sucking
Open fully the air vent plug and the ball valve.
Prime by pouring in water until squirting from the air vent plug. Close the priming plug when
priming completed.
Close the air vent plug.
