Proseware Lubricants

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Proseware Lubricants supplies Proseware PWG 320 and Proseware PWG 220 gear oil.^123456789 Proseware PWG 320 is an approved ISO VG 320 synthetic PAO gear oil, and Proseware PWG 220 is an ISO VG 220 gear oil used in the gearboxes of all 12 turbines.¹²⁹

Facts

• For affected turbines, the gear oil changes from Proseware PWG 320 to Proseware PWG 220.¹⁰
• Per turbine, parts and labour include 470 L of Proseware PWG 220, one FGT-P-11872 oil filter element, one PWG 220 label kit, and labour by 2 technicians for about 6 hours.¹¹
• The approved gear oil is Proseware PWG 320 with viscosity grade ISO VG 320 and synthetic PAO base oil.¹
• The change replaces Proseware PWG 320 (ISO VG 320) with Proseware PWG 220 (ISO VG 220) in the gearboxes of all 12 turbines, as required by SB-LWS-2025-07 Rev. A.²
• The lubricant is Proseware PWG 220, ISO VG 220, in service since 2025-10-15.³
• Each turbine requires 470 L of Proseware PWG 220, consisting of 60 L for flushing and 410 L for filling, supplied as 3 drums of PWS-220-D208.¹²
• The gearbox is filled with 410 L of Proseware PWG 220 through a 10 micron filter cart.¹³
• PWS-320-D208 is listed as Proseware PWG 320 gear oil in a 208 L drum with a do-not-use note tied to MOC-2025-012; the stock entry shows 1 drum on hand, minimum 0, reorder quantity 0, and 0 on order.⁴
• Supplier typical lead times are 10 weeks for Fabrikam Getriebetechnik GmbH, 6 weeks for Litware Wind Systems, 3 weeks for Proseware Lubricants, and 2 weeks for Adventure Works Industrial Supply.⁵⁶⁷⁸
• Since SB-LWS-2025-07, the gearboxes use Proseware PWG 220 with ISO VG 220 instead of PWG 320.⁹
• The quiz answers state that the HSS drives the generator, A2102 trips at 82 °C, the oil used is Proseware PWG 220, and a rising PQ index means more ferrous wear debris, often from a bearing.¹⁴
• For the conversion, the oil is to be changed from Proseware PWG 320 to Proseware PWG 220 at the next scheduled oil change, and no later than 31 December 2025.¹⁵
• Superseded: The specified new oil is Proseware PWG 320 (ISO VG 320), with 410 L per turbine supplied as 2 drums PWS-320-D208.¹⁶
• Superseded: 410 L of Proseware PWG 320 is filled through a 10 micron filter cart.¹⁷

Timeline

• 2025-07: Since SB-LWS-2025-07, the gearboxes use Proseware PWG 220 with ISO VG 220 instead of PWG 320.⁹
• 2025-07: The change replaces Proseware PWG 320 (ISO VG 320) with Proseware PWG 220 (ISO VG 220) in the gearboxes of all 12 turbines, as required by SB-LWS-2025-07 Rev. A.²
• 2025-10-15: The lubricant is Proseware PWG 220, ISO VG 220, in service since 2025-10-15.³
• 2025-12-31: For the conversion, the oil is to be changed from Proseware PWG 320 to Proseware PWG 220 at the next scheduled oil change, and no later than 31 December 2025.¹⁵

Documents

• SB-LWS-2025-07 Rev. A - Gearbox oil viscosity grade change for LT-32 CCV turbines
• LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt
• MOC-2025-012 - Gearbox Oil Grade Change to PWG 220
• Oil analysis report TR-OA-2026-0614 - WTG-07 gearbox oil
• SOP-GBX-010 Rev. B - Gearbox oil change
• Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building
• Gearbox Fundamentals for Wind Technicians
• Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge
• SOP-GBX-010 - Gearbox oil change, Revision A (superseded)

Related

• Topics: Cold-climate operation and icing, Environmental permit and night curtailment, Gearbox lubrication and oil changes, Gearbox temperature, vibration and oil analysis, Generator brushes and electrical systems, Safety, isolation and work at height, Spare parts, stock levels and supply, Training, site rules and acronyms

Sources

Footnotes

1. LWS-MM-GBX-32 Rev. D — LT-32 Maintenance Manual Chapter 4 Gearbox Excerpt — p. 3 · ✓ quote verified ↩ ↩² ↩³

2. MOC-2025-012 - Gearbox Oil Grade Change to PWG 220 — ¶ 4 · ✓ quote verified ↩ ↩² ↩³ ↩⁴

3. Oil analysis report TR-OA-2026-0614 - WTG-07 gearbox oil — p. 1 · ✓ quote verified ↩ ↩² ↩³

4. Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building — sheet "Stock", row 19 · table ↩ ↩²

5. Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building — sheet "Suppliers", row 2 · table ↩ ↩²

6. Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building — sheet "Suppliers", row 3 · table ↩ ↩²

7. Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building — sheet "Suppliers", row 4 · table ↩ ↩²

8. Spare Parts Stock Snapshot 2026-07-21 for Quellmoor Ridge O&M Building — sheet "Suppliers", row 5 · table ↩ ↩²

9. Gearbox Fundamentals for Wind Technicians — slide 5 · ✓ quote verified ↩ ↩² ↩³ ↩⁴

10. SB-LWS-2025-07 Rev. A - Gearbox oil viscosity grade change for LT-32 CCV turbines — p. 1 · ✓ quote verified ↩

11. SB-LWS-2025-07 Rev. A - Gearbox oil viscosity grade change for LT-32 CCV turbines — p. 2 · ✓ quote verified ↩

12. SOP-GBX-010 Rev. B - Gearbox oil change — ¶ 22 · ✓ quote verified ↩

13. SOP-GBX-010 Rev. B - Gearbox oil change — ¶ 35 · ✓ quote verified ↩

14. Gearbox Fundamentals for Wind Technicians — slide 10 · ✓ quote verified ↩

15. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 16–23 · paraphrase ↩ ↩²

16. SOP-GBX-010 - Gearbox oil change, Revision A — ¶ 19 · ✓ quote verified ↩

17. SOP-GBX-010 - Gearbox oil change, Revision A — ¶ 31 · ✓ quote verified ↩

Provenance badges✓ quote verified the quoted words were found verbatim in the source textparaphrase reworded from the source text; numbers checked, no verbatim quotetable values parsed deterministically from the cited table rows