MARIA_BRAY_Question_1.docx

REQUEST FOR CLARIFICATION

Question No: 1

DRYDOCK REPAIRS FOR USCGC MARIA BRAY

QUESTION:

We have been advised by Eaton that The NSN number comes back as a Wichita clutch HC model not Eaton. Please see paragraphs 1.2 and 3.6. We have been advised to contact Wichita clutch for tech rep services rather than Eaton. Please clarify the make and model of the equipment in question so we can provide the correct tech rep.

RESPONSE:

Per Rolls Royce, “There are two makes of clutch used on the USCG WLM175 1350H Z-Drives, the Eaton clutch is the old and original clutch and only in place on those Z-Drives that have not been modified during a recent Factory Overhaul. The Wichita clutch is the upgraded lower pressure clutch only installed on those Z-Drives that have been subjected to a recent Factory overhaul.”

Eaton Overhaul kit (old clutch) is NSN 2010-01-551-1161 Wichita Overhaul kit (old clutch) is NSN 2520-01-645-8279 Para 1.2 does correctly show Wichita Overhaul kit being supplied as GFP. Para 3.6 does have confusing information about Eaton (old/original) clutch no longer found on this Cutter. Para 3.6 will be corrected in future versions of this specification.

As far as model, in Rolls Royce documentation Tech Pub Appendix – B.1 they refer to it as D8202364. Which is their own companies part number/drawing, they don’t reveal Wichita part numbers or identification.

Attachment 4