Subject to change · FNA1HV 005_008_016_43622600 · 0421· EN
Page 14
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7.3
Mains connection
Danger to life through electric shock!
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Electrical work may only be carried out by qualified electricians.
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The mains voltage must match the voltage indicated on the type plate (motor).
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The direction of rotation of the motor must match the direction of rotation arrow on the motor housing.
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Check the direction of rotation of the motor each time the unit is switched on (only for three-phase motor).
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The power source must be sufficiently fused (see page 23).
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Cable cross-sections must be sufficiently dimensioned.
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Cables and connection to the power source must be in perfect condition.
DANGER
Always observe before operating the filter unit:
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The above-mentioned operating conditions (see page 19) must be strictly observed.
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Read the installation instructions carefully and completely.
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Cables and hoses must not be laid within the operating personnel's range of movement (risk of tripping).
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During unattended operation, make sure that hoses cannot fall out of the tank.
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Ensure that the suction and pressure sides are sufficiently immersed in hydraulic fluid (sucking in air can lead to malfunctions).
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If no air is sucked in during commissioning, open the cover on the filter housing and fill in approx. 0.3 l of oil.
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The oil must be compatible with the operating fluid from the previous filtrations. If this is not the case, the filter system must be
cleaned and the filter element must be replaced.
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The cover of the filter housing must be properly closed. If necessary, turn the cover by hand as far as it will go; there may be a gap
that remains visible between the cover and the housing (see fig. 4)
Fig. 4: Gap between cover and housing
On start-up please check:
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Tightness of the filter unit.
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For 3-phase AC motors, check whether the motor‘s direction of rotation corresponds to the direction of rotation arrow on the
motor housing. If not, only allow qualified personnel to invert the phases (only with 3-phase motor).
In the event of power failure
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Switch the unit off or disconnect it from the mains to avoid consequential damage to people and the environment when the
voltage returns, e.g. due to overflowing oil or danger of slipping due to leaking oil.
Gap
