Source page: LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt · Original file: original.pdf, p. 3 · Provenance: ✓ quote verified (native text)
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Only the lubricant listed in table 4-2 is approved for the FGT-3200 gearbox. Do not mix lubricants of different brands or viscosity grades.
The turbine controller blocks the start of the drivetrain until the oil sump has reached the minimum start-up temperature. Do not bypass the start inhibit.
The detailed oil change procedure is defined by the operator. The OEM requirements are:
1. Stop the turbine, lock the rotor and isolate the drivetrain.
2. Drain the oil at an oil temperature between 40 and 60 °C so that deposits drain with the oil.
3. Replace the filter element FGT-P-11872 and inspect the magnetic plug.
4. Fill only through a filter cart with a 10 micron element.
5. Check the level at the sight glass after 20 minutes of standstill.
6. Take a reference oil sample after 24 hours of operation.
Table 4-4 - Tightening torques for oil change work.
Table t03
| Row | Item | Specification |
|---|---|---|
| 2 | Gear oil | Proseware PWG 320 |
| 3 | Viscosity grade | ISO VG 320 |
| 4 | Base oil | synthetic PAO |
| 5 | Total oil volume | 410 L (gearbox sump 330 L + cooling and filter circuit 80 L) |
| 6 | Oil change interval | 5 years, or earlier when the laboratory analysis requires it |
| 7 | Oil sampling interval | 6 months |
| 8 | Filter element FGT-P-11872 | replace every 12 months or at alarm A2140 |
| 9 | Breather FGT-P-11880 | replace every 12 months |