Recommended Maintenance Program; General Construction - ABB AMA Manual

7.3.1 Recommended maintenance program

Maintenance
object

7.3.1.1 General construction

Maintenance object
Machine operation
Mounting and foundation
Exterior
Fastenings
Anchor bolts
Maintenance object
High voltage cabling
High voltage connections
3BFP 000 063 R0101 REV D
The Level 4 maintenance should be performed after every 80 000 equivalent operating hour.
When a L4 maintenance is conducted it replaces the L1, L2 or L3 maintenance otherwise
scheduled, and it leaves their rotation unaffected, see Table 7-1 Maintenance intervals.
Abbreviation used in maintenance program:
• V = Visual checking
• C = Cleaning
• D = Disassembling and assembling
• R = Reconditioning or replacement
• T = Testing and measurement.
Not all options are applicable for all machines.
Table 7-1. Maintenance intervals
MAINTENANCE INTERVAL
In equivalent operating hours or time period, which ever comes first
L1 L2
4 000 Eq. h 8 000 Eq. h
12 000 Eq. h 16 000 Eq. h
20 000 Eq. h
28 000 Eq. h
½ year Annual
L1 L2 L3
V / T V / T V / T
V V / T V / T
V V V
V V / T V / T
V V V / T
Main supply connection
L1 L2 L3
V V / T V / T
V V / T V / T
Manual for High Voltage Process Performance Motors
L3 L4
24 000 Eq.h 80 000 Eq.h
3-5 years Overhaul
L4 Check / Test
V / T Starting, shut down, vibration measurement, no-load point
V / T / D Cracks, rust, alignment
V Rust, leakage, condition
V / T Tightness of all fastenings
V / T Fastening, condition
L4 Check / Test
V / T / D Wear, fastening
V / T / D Oxidation, fastening
Check / Test
Maintenance - 49