MK Diamond Baldor Motor User Manual
Page 17
Installation & Operation 2-7
MN428
Figure 2-3 Typical Motor Performance VS Voltage Variations
Initial Lubrication
Baldor•Reliance motors are shipped from the factory with the bearings properly packed with grease and ready
to operate. Where the unit has been subjected to extended storage (6 months or more) the bearings should be
relubricated (regreasable type) prior to starting. When motors are equipped for oil mist lubrication refer to the
instruction manual for installation, operation, and maintenance of oil mist lubrication systems.
Caution:
Shaker Duty motors must be properly lubricated prior to Start Up to prevent damage. See Section 3.
First Time Start Up
Be sure that all power to motor and accessories is off. Be sure the motor shaft is disconnected from the load
and will not cause mechanical rotation of the motor shaft.
1. Make sure that the mechanical installation is secure. All bolts and nuts are tightened etc.
2. If motor has been in storage or idle for some time, check winding insulation integrity.
3. Inspect all electrical connections for proper termination, clearance, mechanical strength and electrical
continuity.
4. Be sure all shipping materials and braces (if used) are removed from motor shaft.
5. Manually rotate the motor shaft to ensure that it rotates freely.
6. Replace all panels and covers that were removed during installation.
7. Momentarily apply power and check the direction of rotation of the motor shaft.
8. If motor rotation is wrong, be sure power is off and change the motor lead connections.
Verify rotation direction before you continue.
9. Start the motor and ensure operation is smooth without excessive vibration or noise.
If so, run the motor for 1 hour with no load connected.
+20
+15
+10
+5
0
−5
−10
−15
−20
−15
−10
−5
0
+5
+10
+15
Voltage Variations (%)
Changes in Motor Performance (%)
Full -Load
Current
Full -Load
Current
Power
Factor
Power
Factor
Efficiency
Efficiency
Maximum
Torque
Maximum
Torque