Omec OMT2, OMT1 Maintenance Manual

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– Mounting & Maintenance Instructions –

OMT1 & OMT2 Motors

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Inhalt Seite

1 General information 3

2 Delivery 3

3 Mounting 3

4 Coupling 3

4.1 Direct coupling 3

4.2 Indirect coupling 4

4.2.1 Flat belt or V-belt 4

4.2.2 Spur gear transmission 4

4.3 Shaft couplings 4

5 Electrical connections 4

5.1 General information 4

5.2 Circuit details 5

6 Putting into service 6

7 Maintenance 6

7.1 Dust 6

7.2 Moisture 6

7.3 Wear & vibrations 7

7.4 Greasing 7

7.5 Replacement of ball or roller bearing 7

8 Bearing types 8

9 Regrasing interval of bearings 8

10 Disposal 9

11 Motor spare part list / exploded view 10

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1 General information

This manual concerns normal three phase induction motors with an output varying
from small to middle size; they are externally cooled, totally enclosed, supplied in a
cast iron or aluminium frame and provided with ball bearings or roller bearings,
lubricated with grease.

2 Delivery

After receipt, remove the package material, if any, and mind the parts that have been
delivered loose.

Check the motor to see whether transport damage has occurred.

You should be able to rotate the shaft easily and smoothly by hand. Compare the
details on the nameplate with those of the power network and with the
requirements of the motor.

3 Mounting

The motor must be fixed on a stable, clean and flat foundation with good fitting
foundation bolts, using washers.

Never mount a motor manufactured for a horizontal mounting on a surface with an
angle of inclination of more than 15 degrees without consulting the supplier in
advance. Foot & flange motors always have to be mounted in such a way that the
drain holes, if any, are situated at the bottom, otherwise you risk that moisture will
condensate in the motor and cannot be drained off. To this end you need to remove
the drain plugs.

Under no circumstances the entrance of cooling air, drafted by the cooling fan, may
be obstructed. This will cause overheating of the motor. Special attention is required
where motors will be located in small enclosed rooms.

The ambient cooling temperature must not exceed 40 ºC, unless otherwise agreed
upon at the time of ordering.

4 Coupling

4.1 Direct coupling

The motor and driven shafts must be accurately aligned. In case of a flexible coupling,
the manufacturers distance between the parts to be coupled must be adhered to,
also the degree of misalignment must be within the makers tolerance. We do not
recommend using solid couplings.