Teral VKN-e Series, Инструкция по эксплуатации, Страница: 15 / 32

3-3
Warning
Before hoisting the pump, refer to the catalog, dimensional outline drawing,
and other documents to check the weight of the units. Do not hoist any
units if its weight exceeds the rated load of the hoisting equipment/devices.
Warning
Never use a pump that is being hoisted or install parts on it. Otherwise, the
pump may fall.
Caution
When hoisting the pump, pay attention to its center of gravity. Otherwise,
the pump may topple over or fall, thus leading to an injury.
Caution
When you lift the product by hand, pay attention to its center of gravity and
weight. Do not allow a single person to lift a product heavier than 15 kg.
Otherwise, it may put strain on the body, thus leading to an injury.
(12) If the pumping liquid is cold, condensation may occur inside the motor while the pump is stopped.
Take measures to prevent condensation, for example, by installing the pump in a sufficiently dry
room or by heating and insulating the motor even when the pump is stopped.
(13) Carry out touchup painting at a time interval suitable for the environment of use. Depending on the
humidity, condensation, and other conditions, rust may form on areas such as threaded parts,
worked areas, anticorrosive-coated sections.
(14) Do not put a cover or filter over the motor. Otherwise, the temperature may increase inside the
motor, thus leading to an unexpected failure.
[VKN-e]
(15) Install the pump at a place as close to the oil tank as possible with its
suction height as low and its suction pipe length as short as possible.
In addition, do not install the pump at a position lower than the liquid
level, at a slanted posture, or with the shaft being horizontal, as
shown in the right figure.
(16) If the shaft sealing device (mechanical seal) is worn or damaged, the
liquid leaking from the shaft sealing device will be discharged from the drain to protect the motor.
If the discharged liquid may cause problems such as contamination around the unit, take
appropriate measures in advance.
(17) When you hoist the pump, wind the rope or the like around the casing (just below the suction port
and discharge port) and lift it. Pay attention not to allow the pump to slip out of the rope and fall.
[VKP-e]
(18) It is necessary to make a mounting hole larger than the outside diameter
of the pump section so that the pump section can fit into the tank (oil
tank). See the dimensional outline drawing.
(19) Install the pump so that its main shaft is located in a vertical position.
(20) For the operation, the pump section needs to be submerged below the
liquid level. Because the suction port is located at the bottom, keep the
suction port at least 38 mm away from the bottom surface of the tank (oil
tank) to prevent the strainer from getting clogged with cutting powder, dirt,
or other materials. If cutting powder, dirt, or other materials are predicted
to accumulate on the bottom of the tank, provide as large a distance as
possible from the bottom at the design stage.
Discharge
Maximum liquid level
Minimum liquid level
Bottom of the tank
Min. 38
Suction
Liquid level