A.02 PWS Hub & Shaft Assemblies repair.pdf

MAIN PROPULSION CPP BLADES HUBS & SHAFTING; RENEW

01. General

Renew two (2) set of port or starboard propeller CPP blades and hub with shafts anodes as specified below.

02. References

Drawings: Hundested 0-002-020932-2 – MP700 Propeller Hoved Samling (Port Hub)

Hundested 0-002-020933-2 – MP700 Propeller Hoved Samling (Starboard Hub)

Hundested 1-022-020409-9 – MP700 / CPG120 Installation of Unit 6330 / G1177 (Port Shaft)

Hundested 1-022-021126-2 – MP700/CPG120i Installation of Unit 6331 / G1178 (Starboard Shaft)

Hundested 2-140-021135-1 – MP700 / CPG120 Flange Coupling Assembly

Manuals: Hundested Propeller Marine Gear Manual (Manufacturing Number G1177-78)

Standards AWS A5.9, Specification for Bare Stainless Steel Welding Electrodes and Rods

03. GFM

Controllable Pitch Propeller Blades,Port & Starboard Controllable Pitch Propeller Hubs,Port & Starboard Controllable Pitch Propeller Shafts,Port & Starboard

04. Safety Precautions

Follow all applicable state local and federal requirements including those specified in EM-385-1-1 latest revision.

Prior to commencing work, follow vessel’s LOTO policy and procedures.

05. Specifications

Controllable Pitch Propeller Blades Repair

Contractor shall procure the services of a factory authorized Hundested Propeller A/S Technical Representative.

Technical Representative shall have direct supervision for all work performed under this work item

Contractor shall furnish the following materials for propeller blade replacement. Foot seals shall be compatible and certified for use by the OEM and have an ABS Certificate of Inspection and Class Approval.

a. Blade Foot Seals (x 4)

Use care to not damage or scratch the propeller blade and sealing surfaces.

Technical Representative shall inspect all sealing surfaces. Inspect blade foot seals with each blade.

Removed blades shall be protected so they will not be damaged. Bolt the removed blades to the pallets provided with rubber pads from which the replacement blades are removed. Return the removed blades to the U.S. Moorings Logistics Warehouse.

Controllable Pitch Propeller Tail Shaft Repair

Regarding the USACOE Yaquina spare tail shaft. The shaft inspection and repair details are as are as follows:

1. Contractor will transport each tail shaft from the moorings to shop and back again upon completion.

2. Unload and set the shaft up in Lathe.

3. Measure diameter and Total run out.

4. Document all measurements, provide access for ABS, Vigor or ships representative to witness results.

5. Provide a report upon completion of the work.

6. Machine remove four liners on each shaft.

7. NDT Magnaflux inspect the entire shaft.

8. Prepare shaft liner fits for new liners

9. Machine finish ID of four new IPS provided 316 SS liners and install onto shaft

10. Finish machine liners to specified size.

11. Contract with fiberglass application company and apply to three areas on each shaft

12. Inspect document outside diameter and total run out and ship.

Controllable Pitch Propeller Hubs Port & Starboard Repair

Contractor shall procure the services of a factory authorized Hundested Propeller A/S Technical Representative.

Technical Representative shall have direct supervision for all work performed under this work item. Supervise disassembly, repairs, reassembly and testing of hubs and tie rods. Contractor shall provide machinist labor. At a minimum, repairs include the replacement of the following parts:

a. O-ring 259.3 mm x 5.7 mm, Part #201318F (x2);

b. O-ring 439.3 mm x 5.7 mm, Part #205111F (x2);

c. O-ring 59.3 mm x 5.7 mm, Part #201216F (x2);

d. O-ring 69.3 mm x 5.7 mm, Part #201222F (x2);

e. Stainless Steel Lock Wire (x2);

f. Bronze Plugs for Fill / Vent Hub Flange Cover (x4);

g. Blade Feet (x8); and

h. Slipper Blocks (x8);

i. Cross Head (x2); and

j. Tie Rod Head (x2).

The repairs shall also include weld build-up and re-machining of hub bodies (x2) and hub end plates (x2) to manufacturer’s acceptable tolerance.

Hub shall be reassembled with factory-approved grease, approximately 105 lbs per shaft. Complete assembly shall be operated through the full range of motion.

Contractor will transport propeller blades, hubs and shafting from the moorings to shop and back again upon completion

06. Testing

Perform nondestructive testing (NDT) on all blade bolts IAW original equipment manufacturer (OEM) requirements. Inspection services shall be performed by ABS Certified Personnel.

Demonstrate ability to pitch full ahead / astern pitch prior to undocking. All testing and final adjustments shall be coordinated with the COR, Technical Representative.

07. Inspection / Documentation

Provide product data on blade bolts and foot seals. Provide proof that they are compatible and certified for use with the OEM. Provide ABS Certificate of Inspection and Class Approval.

Within 2 weeks of the work task’s completion, provide a service report from the factory authorized Hundested Propeller A/S Technical Representative.

Inspections shall be witnessed by the COR.

08. CONTRACT ADMINISTRATOR

Contract will be administered by:

Department of the Army, Portland District Corps of Engineers Attn: CENWP-CT-P, Brandon Laisch P. O. Box 2946 Portland, Oregon 97208-2946 Name: Brandon Laisch Telephone: 503-808-4608 E-mail: brandon.m.lasich@usace.army.mil

INVOICE SUBMITTAL:

Submit Original Invoice to:

U.S. Army, COE, Finance Center Attn: CEFC-AO-P 5722 Integrity Drive Millington, TN 38054-5005 One Invoice Copy to Sam Repman, Trista Stark, and Brandon Laisch:

samuel.j.repman@usace.army.mil trista.m.stark@usace.army.mil brandon.m.lasich@usace.army.mil