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Service Letter SL-0031 Introduction of new Woodward L’Orange main fuel injector onboard repair kits Date: All X62 and X72 type engines, including -B and X-DF variants Repair Information: 2021-07-23 Implementation: Immediately New Woodward L’Orange main fuel injector on-board repair kits Information for: Operators of all X62 and X72 type engines, including -B and X-DF variants Summary: Information is provided about two new on-board repair kits being introduced for Woodward L’Orange main fuel injectors WinGD is pleased to announce availability of two new fuel injector on-board repair kits for the engine types listed. The new kits are only intended for onboard repair, they are not intended to increase the overhaul interval of injector components. Yours faithfully, Edwin Fullagar Customer Support Manager Medium Bores WinGD Winterthur Gas & Diesel Ltd. Winterthur Gas & Diesel AG. Winterthur Gas & Diesel S.A. Wolfgang Dunker GM Partner Relations WinGD Schützenstrasse 3 PO Box 414, CH-8401 Winterthur, Switzerland Tel. +41 (0)52 264 8844 Fax +41 (0)52 264 8866 Service Letter SL-0031 Contents 1 Introduction of Woodward L’Orange main fuel injector nozzle body and pilot valve repair kits ........................... 2 2 Ordering the kits .................................................................................................................................................. 3 3 Contacts ............................................................................................................................................................... 4 1 Introduction of Woodward L’Orange main fuel injector nozzle body and pilot valve repair kits WinGD is aware that in cases where injectors have operational issues prior to their scheduled Time Between Overhaul (TBO), operational injector components are being replaced due to the configuration of the injector kits. To address this issue, two new kits are introduced to reduce the cost and waste of such repair work. The injection module kit is now available in two parts (see Figure 1-1): · The valve plate kit · The nozzle body kit Note: All kits in Figure 1-1 are delivered with a full set of O-rings. The injection module kit is still available and should be considered as the standard maintenance kit. Injection module kit (existing) Nozzle body kit (new) Valve plate kit (new) Figure 1-1: New and existing injector repair kits Note: In the existing injection module kit, the nozzle body, pilot valve and valve plate are matched and tested together to confirm precise injection performance and function. As proper matching Page 2 of 4 Service Letter SL-0031 and testing of these components is impossible on board, no warranty is offered on the new valve plate and nozzle body kits after installation. For this reason, these new kits are only intended as repair kits. Wärtsilä, one of WinGD’s service partners, is preparing a remanufacturing solution for injection module kits with appropriately matched and tested components. This is a cost-effective maintenance option available in the near future. 2 Ordering the kits The order codes for the new kits and the existing injection module kit are shown in Table 2-1. Table 2-1: Part code designations Engine type X62 X62-B X62DF X72 X72-B X72DF Injection module kit (existing) AX 96144 UX 96144 FX 96144 BX 96144 VX 96144 EX 96144 Valve plate kit (new) AX 96149 UX 96149 FX 96149 BX 96149 VX 96149 EX 96149 Nozzle body kit (new) AX 96150 UX 96150 FX 96150 BX 96150 VX 96150 EX 96150 Note: Nozzle tips must be ordered separately in all cases. The new kits will be available through WinGD’s service partners, Wärtsilä and CMS in the near future. Page 3 of 4 Service Letter 3 SL-0031 Contacts How to contact WinGD For questions about the content of this Service Letter, or if you need WinGD’s assistance, please contact your nearest WinGD representative office. If you don’t have the contact details at hand, please follow the link “Contact us” on the WinGD webpage: https://www.wingd.com/en/about-wingd/contact-us/ Contact details of WinGD Service Partners: For engine maintenance-, operation- support, service and other questions about operation and Service, please contact the following link “Service Partners” on the WinGD webpage to find further information about our Service Partners CMS and Wärtsilä Services Switzerland which can provide worldwide support. https://www.wingd.com/en/service-support/service-partners/ © 2021 Winterthur Gas & Diesel Ltd. — All rights reserved No part of this publication may be reproduced or copied in any form or by any means (electronic, mechanical, graphic, photocopying, recording, taping or other information retrieval systems) without the prior written permission of the copyright holder. Winterthur Gas & Diesel Ltd. makes no representation, warranty (express or implied) in this publication and assumes no responsibility for the correctness, errors or omissions of information contained herein. Information in this publication is subject to change without notice. Unless otherwise expressly set forth, no recommendation contained in this document is to be constructed as provided due to a defect in the engine, but merely as an improvement of the engine and/or the maintenance procedures relating thereto. Any actions by owner/operator as a result of the recommendations are not covered under any warranty provided by Winterthur Gas & Diesel Ltd. and such actions will thus be at the owner/operators own cost and expense. NO LIABILITY, WHETHER DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL, IS ASSUMED WITH RESPECT TO THE INFORMATION CONTAINED HEREIN. THIS PUBLICATION IS INTENDED FOR INFORMATION PURPOSES ONLY. Page 4 of 4