Omec OMT1 Mounting & Maintenance Instructions
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- Mounting & maintenance instructions (10 pages) ,
- Mounting & maintenance instructions (15 pages)
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Summary of Contents for Omec OMT1
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Page 1: Table Of Contents
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions Contents page 1. General information 2. Delivery 3. Mounting 4. Coupling 5. Electrician connection 6. Connection diagram 7. Putting into service 8. Maintenance 9. Bearing types 10. Bearing grease intervals 11. Storage 12. -
Page 2: General Information
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions 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 (IC411), supplied in a cast iron or aluminum frame and provided with ball bearings or roller bearings lubricated with grease. -
Page 3: Coupling
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions Under any exception must be the free flow of air to the cooling fan to avoid the overheating of the motor. This has to be consider also when motor is mounting in small rooms with limited space. - Page 4 OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions A belt pulley, which is either too small or too wide, or too high, a tension on the belt may damage the bearing or cause a shaft break. In case of doubt, consult the supplier.
- Page 5 OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions 4.3. Shaft couplings and pulleys etc. Remove the corrosion protection from the shaft extension and the coupling elements. The coupling parts, belt pulleys and gear wheels need to be dynamically balanced and fit easily on the shaft and to be provided with good fitting keyway.
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Page 6: Electrician Connection
Therefore it is recommended that a motor starter and overload is fitted, giving single phasing and overload protection. All OMEC motors are fitted in standard with PTC’ s. For windings thermal protection PTC should be connected. Page 6... - Page 7 OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions 5.2. Circuit Normally our motors are provided with a terminal box with six connections, to which six leads from the winding are connected either in a delta connection or in a star connection by means of connection links.
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Page 8: Connection Diagram
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions CONNECTION DIAGRAM Page 8... -
Page 9: Putting Into Service
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions PUTTING INTO SERVICE Before putting a motor into service, one should check especially when the motor has not been used for a long time that the insulation resistance of the winding is sufficient. The insulation resistance has to be at least 10 meg/ohms on a 1000V megger. - Page 10 8.4. Greasing Before they leave the factory, the bearings of the OMEC motors are filled with a high quality Lithium base grease. The sizes 56 up to and including 250 are provided with shielded/sealed bearings (ZZ- C3), which have been filled with life-time grease by the manufacture of the bearings.
- Page 11 OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions Replacement of ball or roller-bearings When a bearing has to be replaced, the old bearing has to be removed from the shaft with proper tools in order not to damage the shaft. Thereupon the bearing location on the shaft has to be cleaned and checked thoroughly.
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Page 12: Bearing Types
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions BEARING TYPE AND BEARING INSIDE DIAMETER OMEC Poles Type of bearing Bearing inside Motor Type Drive End Non Drive End diameter (mm) OMT2 56 2 / 4 6201 6201 12 / 12... -
Page 13: Bearing Grease Intervals
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions BEARING GREASE INTERVALS By the term “ greasing interval” we mean the number of working hours after which the bearing lubricant has to be replaced. Electric motors have such a wide range of application that they must cope with many... -
Page 14: Storage
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions A chemically aggressive environment, extreme moistness, strong vibrations, high or low ambient temperatures are not normal circumstances and such conditions must be taken into account. STORAGE Motors should be stored in a dry, vibration free and clean area at normal ambient (-20℃... -
Page 15: Motor Spare Parts And Drawing
OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions MOTOR SPARE PARTS LIST & DRAWING Three-phase motor with squirrel-cage rotor 1 Shield B3 DE 19 Bolt bearing cap NDE 2 Fixing bolt shield DE 20 Fan cover 3 Stator frame... - Page 16 OMEC MOTORS OMT1 & OMT2 Mounting & Maintenance Instructions Page 16...
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