Source page: LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt · Original file: original.pdf, p. 4 · Provenance: ✓ quote verified (native text)
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Table 4-5 - Inspection intervals.
For the output stage bearings (HSS bearings, rotor side and generator side) the velocity RMS limits are 3.5 mm/s (alert) and 4.5 mm/s (alarm). Above the alarm level, plan a bearing inspection and reduce load if the trend keeps rising.
Table t06
| Row | Task | Interval |
|---|---|---|
| 2 | Visual inspection and leak check | 6 months |
| 3 | Oil sampling and laboratory analysis | 6 months |
| 4 | Endoscope inspection of gear teeth and bearings | 24 months |
| 5 | Vibration monitoring (condition monitoring system) | continuous |
| 6 | Filter element replacement | 12 months |
| 7 | Oil cooler radiator cleaning | as required |