Seepex BN 5-12 Series, Руководство по эксплуатации и техническому обслуживанию

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Manual of Electric Motors 75
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5.3.3 Oil Mist lubricated bearings
The motor must be stored in horizontal position. Lubricate the bearings with ISO VG 68 mineral oil in the
amount indicated in the Table 5.2 (this is also valid for bearings with equivalent dimensions). After filling with oil,
rotate the shaft by hand, at least five revolutions)
During the storage period, remove the shaft locking device (if any) and rotate the shaft by hand every week, at
least five revolutions, stopping it at a different position from the original one. Reinstall the shaft locking device
every time the motor has to be moved. If the motor is stored for a period of over two years, the bearings must
be replaced or removed, washed according to manufacturer instructions, checked and relubricated according
to item 8.2.
5.3.4 Sleeve bearing
The motor must be stored in its original operating position and with oil in the bearings. Correct oil level must be
ensured. It should be in the middle of the sight glass. During the storage period, remove the shaft locking
device and rotate the shaft by hand every month, at least five revolutions, and at 30 rpm, thus achieving an
even oil distribution inside the bearing and maintaining the bearing in good operating conditions. Reinstall the
shaft locking device every time the motor has to be moved.
If the motor is stored for a period of over six months, the bearings must be relubricated according to the Item
8.2 before starting the operation.
If the motor is stored for a period longer than the oil change interval, or if it is not possible to rotate the motor
shaft by hand, the oil must be drained and a corrosion protection and dehumidifiers must be applied.
The oil must always be removed when the motor has to be handled. If the oil mist system is not operating after
installation, fill the bearings with oil to prevent bearing rusting. During the storage period, rotate the shaft by
hand, at least five revolutions, stopping it at a different position from the original one. Before starting the motor,
all bearing protection oil must be drained from the bearing and the oil mist system must be switched ON.
Table 5.2 -
Amount of oil per bearing
Bearing size Amount of oil (ml) Bearing size Amount of oil (ml)
6201 15 6309 65
6202 15 6311 90
6203 15 6312 105
6204 25 6314 150
6205 25 6315 200
6206 35 6316 250
6207 35 6317 300
6208 40 6319 350
6209 40 6320 400
6211 45 6322 550
6212 50 6324 600
6307 45 6326 650
6308 55 6328 700
5.4. INSULATION RESISTANCE
We recommend measuring the winding insulation resistance at regular intervals to follow-up and evaluate its
electrical operating conditions. If any reduction in the insulation resistance values are recorded, the storage
conditions should be evaluated and corrected, where necessary.
5.4.1. Insulation resistance measurement
We recommend measuring the winding insulation resistance at regular intervals to follow-up and evaluate its
electrical operating conditions. If any reduction in the insulation resistance values are recorded, the storage
conditions should be evaluated and corrected, where necessary.
The insulation resistance must be measured in a safe environment.
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