Mechanical Performance - ABB AMA Series Manual

8.1.1 Mechanical performance

Experienced
malfunction
z
z Lubrication malfunction
z
z
Bearing malfunction
z
z
Faulty cooling fan(s)
z z
z Malfunctioning cooling system
z
z
Machine misalignment
z
z Rotor or shaft imbalance
z
z Vibration coming from connected machinery
z
Axial load coming from connected machinery
z
z
Faulty or incorrectly assembled coupling
z
z Insufficient foundation strength
z
Winding fault
z z
Excessive network unbalance
z
Foreign material, moisture or dirt inside the machine
3BFP 000 050 R0101 REV E
Trouble shooting
Mechanical performance
Possible cause
Damaged bearing parts
Faulty bearing assembly
Imbalanced or damaged fan(s)
Manual for Induction Motors and Generators
Corrective action
Check lubricant quality and quantity and lubrication system function
Check bearing condition and replace bearing parts
Open and readjust the bearing
Check and repair cooling fan(s)
Inspect and repair cooling system
Check machine alignment
Rebalance rotor
Check the balance of connected machinery and coupling type
Check alignment and coupling function and type
Check coupling function
Reinforce foundation as per ABB instructions
Check windings
Check that network balance fulfils requirements
Check and clean machine interior, dry windings
Trouble Shooting - 91