Lubrication System And Bearings; Maintenance Of General Constructions; The Tightness Of Fastenings - ABB AMA Manual

7.3.1.4 Lubrication system and bearings

Maintenance object
Bearing during operation
Waste grease
Re-greasing
Seals
Bearing insulation

7.4 Maintenance of general constructions

7.4.1 The tightness of fastenings

3BFP 000 063 R0101 REV D
L1 L2 L3
T T T / R
V V / C V / C
V V / R V / R
V V / D V / D
V / C V / C V / C / 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.
Manual for High Voltage Process Performance Motors
L4 Check / Test
T / R General condition, extra noise, vibration
V / C Condition, purging
V / R According to bearing plate
V / D Leakage
V / C / T Endshield cleanliness, insulation resistance
Maintenance - 51