Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge

FICTIONAL SAMPLE - Contoso Renewables, Quellmoor Ridge Wind Farm and every organisation, person, product and value in this wiki are invented. Not for operational use.

This email from Litware Wind Systems technical support answers Contoso Renewables’ question about whether service bulletin SB-LWS-2025-07 Rev. A applies to Quellmoor Ridge. It states that the bulletin applies to all 12 LT-32 turbines in CCV configuration and lists conversion requirements for gearbox oil, flushing, filters, start-up temperature, and completion reporting.

Key facts

• The email body is marked “FICTIONAL - NOT FOR OPERATIONAL USE.”¹
• The email was sent on 20 May 2025 with the subject “RE: [LWS-TS-48213] Applicability of SB-LWS-2025-07 to Quellmoor Ridge.”²
• Litware’s response addresses a 29 April 2025 question about SB-LWS-2025-07 Rev. A, described as covering gearbox oil viscosity grade for CCV turbines.³
• The configuration records checked for Quellmoor Ridge Wind Farm showed that all 12 turbines, WTG-01 through WTG-12, were delivered as LT-32 in CCV configuration with Fabrikam FGT-3200 gearboxes, so SB-LWS-2025-07 applies to all 12 turbines.⁴
• 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 2025.⁵
• Each gearbox is to be flushed with 60 L of PWG 220 before the final fill of 410 L.⁶
• The oil filter element FGT-P-11872 is to be replaced during the conversion.⁶
• The minimum oil sump temperature for start-up is to be set to +5 degrees C using controller parameter GBX_TMIN_START.⁶
• The completion form in annex B of the bulletin is to be returned within 30 days of each conversion.⁶
• Conversions made according to the bulletin keep the gearbox warranty valid.⁷
• Residual PWG 320 above 5 % after flushing is not permitted.⁷
• The original requester stated that Contoso operates 12 LT-32 turbines at Quellmoor Ridge and reported that on 21 January two turbines needed more than 6 hours of heating before start-up at -24.6 degrees C.⁸
• The original requester asked whether SB-LWS-2025-07 applies to all Quellmoor Ridge turbines and whether the conversion could be done during the autumn maintenance campaign.⁹

Contents

Email context

The message is an email reply dated 20 May 2025 about the applicability of SB-LWS-2025-07 to Quellmoor Ridge.¹⁰

The sender is Henrik Saltvedt, and the message is addressed to Dario Penwarden with Yusuf Arkwell copied.¹⁰

The body contains a “FICTIONAL - NOT FOR OPERATIONAL USE” banner at both the beginning and the end of the email chain.¹¹¹²

Litware response on applicability

Henrik Saltvedt thanks Dario for the 29 April 2025 question about SB-LWS-2025-07 Rev. A, described as the service bulletin for gearbox oil viscosity grade for CCV turbines.¹³

Henrik states that he checked the configuration records of Quellmoor Ridge Wind Farm.¹⁴

The records show that all 12 turbines, WTG-01 to WTG-12, were delivered as LT-32 in CCV configuration with Fabrikam FGT-3200 gearboxes.⁴

On that basis, the email states that SB-LWS-2025-07 applies to all 12 turbines.⁴

Conversion points

For the conversion, the email lists these required points:¹⁵

• Change from Proseware PWG 320 to Proseware PWG 220 at the next scheduled oil change, and no later than 31 December 2025.⁵
• Flush each gearbox with 60 L of PWG 220 before the final fill of 410 L.⁵
• Replace oil filter element FGT-P-11872 during the conversion.⁵
• Set the minimum oil sump temperature for start-up to +5 degrees C using controller parameter GBX_TMIN_START.⁵
• Return the completion form from annex B of the bulletin within 30 days of each conversion.⁵

Warranty and residual oil condition

The email states that conversions made according to the bulletin keep the gearbox warranty valid.¹⁶

It also states that residual PWG 320 above 5 % after flushing is not permitted.¹⁶

Original request

The original email came from Dario Penwarden of Contoso Renewables, O&M Supervisor, and asked Litware technical support about ticket LWS-TS-48213 and the applicability of SB-LWS-2025-07 to Quellmoor Ridge.¹⁷¹⁸

Dario stated that Contoso operates 12 LT-32 turbines at Quellmoor Ridge.⁸

He reported that on 21 January two turbines needed more than 6 hours of heating before start-up at -24.6 degrees C.⁸

He asked whether SB-LWS-2025-07 applies to all of the turbines and whether the conversion could be done during the autumn maintenance campaign.⁸

Figures

No figures were extracted from this document.

Related

• Assets: Quellmoor Ridge Wind Farm, WTG-01, WTG-02, WTG-03, WTG-04, WTG-05, WTG-06, WTG-07, WTG-08, WTG-09, WTG-10, WTG-11, WTG-12
• Components: gearbox, oil filter element
• Spare part: FGT-P-11872
• Products: Fabrikam FGT-3200, Litware LT-32, LT-32 CCV, Proseware PWG 220, Proseware PWG 320
• Service bulletin: SB-LWS-2025-07 Gearbox oil viscosity grade change for LT-32 CCV turbines
• Organisations: Contoso Renewables, Fabrikam Getriebetechnik GmbH, Litware Wind Systems, Proseware Lubricants
• Topics: Cold-climate operation and icing, Gearbox lubrication and oil changes

Sources

Footnotes

1. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, line 1 · ✓ quote verified ↩

2. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message headers · ✓ quote verified ↩

3. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 5–6 · ✓ quote verified ↩

4. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 10–12 · paraphrase ↩ ↩² ↩³

5. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 16–23 · paraphrase ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

6. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 16–23 · ✓ quote verified ↩ ↩² ↩³ ↩⁴

7. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 25–26 · ✓ quote verified ↩ ↩²

8. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 48–51 · paraphrase ↩ ↩² ↩³ ↩⁴

9. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 48–51 · ✓ quote verified ↩

10. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message headers · paraphrase ↩ ↩²

11. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, line 1 · paraphrase ↩

12. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, line 57 · paraphrase ↩

13. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 5–6 · paraphrase ↩

14. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, line 8 · paraphrase ↩

15. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, line 14 · paraphrase ↩

16. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 25–26 · paraphrase ↩ ↩²

17. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 40–44 · paraphrase ↩

18. Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge — message body, lines 53–55 · paraphrase ↩

Provenance badges✓ quote verified the quoted words were found verbatim in the source textparaphrase reworded from the source text; numbers checked, no verbatim quote