Maintenance Of General Constructions; The Tightness Of Fastenings - ABB AMA Series Manual

Manual for Induction Motors and Generators
Maintenance object
Plate fins
Vibration dampers
Protective anodes
Water flow regulator

7.4 Maintenance of general constructions

7.4.1 The tightness of fastenings

64 - Maintenance
L1 L2 L3
V V / C V / C
V V V
V / C
V / T V / T V / T
To ensure a long life span for the general construction of the machine, the machine exterior
should be kept clean and should periodically be inspected for rust, leaks and other defects. Dirt
on the machine exterior exposes the frame to corrosion and can affect the cooling of the
machine.
The tightness of all fastenings should be verified regularly. Special focus should be given to the
grouting, the anchor bolts and the rotor parts, which must remain correctly tightened at all times.
Loose fastening in these parts can lead to sudden and severe damage to the entire machine.
General values for tightening torques are presented in Table 7-2 General tightening torques.
L4 Check / Test
V / C General condition
V Condition and profile
V / C Condition, activity
V / T Operation
3BFP 000 050 R0101 REV E