A1 0201_A_REDUCTION GEAR LAYUP YMA BLN.docx
DOCX document 31 KB Posted
- Attached to
- USNS YUMA and BURLINGTON Reduction Gear Service
- Solicitation number
- N3220525Q2272
About this file
This document is a Statement of Work (SOW) for maintenance services on main reduction gears for two Military Sealift Command ships, USNS Yuma and USNS Burlington. The work will be performed at Rhoads Industries in Philadelphia, PA during the period of 01-15 May 2025, involving four reduction gears per ship (ZF 60000 NR2H model) located in each ship's Jet Drive Rooms.
The SOW requires an original equipment manufacturer (OEM) authorized field service representative to conduct comprehensive maintenance, including annual inspections, long-term storage, and anti-corrosion procedures. Specific tasks include inspecting tension hardware, cleaning oil filter units, visually examining clutch discs and gears, and applying corrosion protection oil and grease. The representative must submit detailed condition reports in typewritten and PDF formats, with all work performed under manufacturer guidance and in the presence of ship's personnel. This is classified as a critical safety item maintenance contract, requiring strict adherence to manufacturer standards and performance specifications.
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| File | Type | Posted |
|---|---|---|
| N3220525Q2272.docx | DOCX document | |
| A7 25Q2272 SSJ Redacted.pdf |
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ABSTRACT
The purpose of this item is to perform annual inspections, long-term storage and anti-corrosion maintenance on the main reduction gears on-board USNS Yuma, USNS Burlington Location: EPF 8 (YMA) and 10 (BLN) Rhoads Industries 1900 Kitty Hawk Ave.
Philadelphia, PA 19112
POP: 01 – 15MAY25
REFERENCES
1.1 NAVSEA Tech Manual S9241-DA-MMC-010, Marine Reduction Gear, Model ZF 60000 NR2H
ITEM LOCATION/DESCRIPTION
Locations Jet Drive Room 1 (5-70-1) Jet Drive Room 2 (5-70-2) Quantity (Per ship): Four (4) Reduction Gears
1.2 Item Description/Manufacturer’s Data
1.2.1 Model: ZF 60000
GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE: None
NOTES: None additional.
QUALITY ASSURANCE REQUIREMENTS: None additional.
STATEMENT OF WORK REQUIRED.
Provide the services on an OEM authorized field service representative to perform annual inspections, long-term storage and anti-corrosion maintenance on the main reduction gears.
The OEM field rep is to provide all tools, equipment, consumables and materials to accomplish this maintenance.
With the assistance of ship’s force, ensure that effected systems are locked out/tagged out prior to the start of any work.
Coordinate work with ship’s force. A representative from ship’s force must always be present while reduction gear covers are removed.
Under the guidance of a manufacturer’s representative, perform the following maintenance procedures of Reference 2.1 on equipment listed in section 3.0:
Maintenance Work No. 122: Confirm proper tension hardware to gearbox including input shaft/output shaft mounting bolts.
Maintenance Work No. 124: Clean and inspect oil filter unit.
Maintenance Work No. 132: Visually inspect clutch discs.
Maintenance Work No. 133: Visually inspect gears.
Under the guidance of a manufacturer’s representative, perform the following long-term storage and anti-corrosion procedures in accordance with reference 2.1 procedure K3 on equipment listed in section 3.0:
Drain transmission of oil and fill with corrosion protection oil at least until the bottom measuring mark of the oil gauge. Use corrosion protection oil C 642 or C 644 IAW MIL-L-21260 Operate engine in the “counter-engine-wise output shaft rotation” control valve switch position at increased motor idle speed (max. 50% of nominal operating speed) for approx. 5 to 10 minutes.
Shut down engine.
Plug all breathers and mark them as being plugged. Fill transmission completely with corrosion protection oil, being careful to note if any oil leaks past breather plugs. If leaks are present stop filling with oil, clean up any leakage, and re-plug the breathers.
Protect outer bare steel parts against corrosion using corrosion inhibiting grease.
Reports When inspection, service and testing reveal any deficiency a condition report is to be submitted to the MSCREP with recommended repairs and parts required. Submit one (1) typewritten copies and one (1) electronic copy in Portable Document Format (PDF).
Submit a report that includes “as released” condition of the reduction gears. Submit one (1) electronic copy in Portable Document Format (PDF).
All reports and checklists are to be completed and signed by the person who carried out the inspection and maintenance work and countersigned by the Company’s representative.
Painting: None additional.
Manufacturer’s Representative Provide the services of OEM authorized field service technical representative and labor to accomplish all work and testing on the reduction gears identified in paragraph 3.0 ensuring compliance with the manufacturer’s standards and performance specifications.
This work item requires maintenance and repair actions to be performed on an MSC ship critical safety item. Only original equipment manufacturer (OEM) authorized technical field service providers or MSC qualified non-OEM technical field service providers and OEM authorized or MSC qualified non-OEM parts are to be used to accomplish the requirements of this work item for this ship critical safety item including oversight and guidance on all aspects of equipment as-found condition inspection, removal, disassembly, reassembly, repairs, modifications, reinstallation, and testing as applicable.
Preparation of Drawings: None additional.
GENERAL REQUIREMENTS: None additional.
0203 - 2
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