SR_No_0301977_Main_Engine_Clutch_Repairs.pdf

SR No 0301977 – Port and Starboard Main Engine Clutch Repair

ABSTRACT

Contractor to rebuild the Port and Starboard Engine Clutches under the supervision of an authorized manufacturer’s factory-trained technician

REFERENCES

Technical Manual (#149) and Drawings for Main Engine, Lohman & Stolterfoht (L&S), Pneumaflex Clutches

ITEM LOCATION AND DESCRIPTION

Location: Lower flat of the Machinery Space

Description: Rebuild Both Main Engine Clutches (Port and Starboard)

GOVERNMENT FURNISHED EQUIPMENT (stored at MARAD Alameda Warehouse)

Rebuild parts including:

• Friction Linings

• Spriaflex elements

• Annular Piston Seal Kits

STATEMENT OF WORK

Supply all Labor, Material, Rigging and Transportation to perform the following repairs and rebuild to the Port and Starboard Main Engine Clutches:

• All work to be done under the supervision and guidance of a Factory Service Representative with at least 5 years of experience with Lohman & Stolterfoht Spiraflex Clutches

• Past work has been done by following vendor Marine Propulsion Inc 10505 Corbin Avenue Hammond, LA

(985) 542-5344 marprop@bellsouth.net POC: Bryan Robbins

• Factory trained Technician shall be present during detachment of the clutch from the engine and reduction gear flange; Disassembly, Overhaul and Reassembly of Clutch; Reinstallation and alignment of clutch with engine and reduction gear;

Activation of the clutch for dock trial and 1-day seal trial.

mailto:marprop@bellsouth.net

• All other times during set-up and removal and reinstall interference efforts, Technician may advise over the phone

• Detach interferences as required to allow for the detachment and rigging of clutches from installed location to suitable location for disassembly and overhaul.

• All piping shall have heavy cardboard or plastic covers taped over openings after detachment and be tagged and moved to a suitable location away from traffic for storing work this item Note: List by number all covers and submit to CE as a record of what has to be removed prior to reassembly to prevent blockage of any line(s)

• Tag and seal all control tubing, control wiring

• Following guidance of technical manual for clutches (below) and recommendations and guidance of L&S Factory Technician to detach, rig to suitable space and rebuild both Port and Starboard clutches using Government Furnished Spares Note: Weight of Clutch Assembly is 12,380lbs

1. Ship’s crew will tag out and isolate control air

2. Lock Clutch with strap and hoist

3. Loosen and remove aligning bolts and nuts at engine flange, Internal ring and conical jacket

4. Loosen and remove hex head screws and clamping disc between internal ring and conical jacket

5. Drive out cylindrical pins

6. Lift and rig clutch out of location to suitable work place. Pay close attention to central feed line during removal. Feed line protrudes from gearing flange

7. While clutches are out of installed location, provide labor and materials to clean and de-sludge are in way of clutch installation. Assume 1 day of cleaning for 2 men plus all removal of debris and cleaning materials from ship and disposal properly

• Disassemble clutches as per guidance (below) and recommendations of Factory Technician

1. Loosen and remove hex screws and nuts (item 48)

2. Remove conical jackets

3. Pull out cylinder notched pins

4. Unscrew countersunk screws and remove friction linings

• Clean and replacement of overhaul parts as follows:

1. Clean conical jackets and friction disks as per Technician guidance

2. Check friction faces of conical jackets for proper condition

Note: Provide CE and COR with report of condition and any recommended measures to repair and perceived thermal deformation from overheating of the clutch. Repairs will done under a separate CFR- Delivery Order

3. Attach new friction linings to conical friction disks with countersunk screws

4. Lock countersunk screws by driving in cylinder notched pins

5. Check Central Feed Tube condition and replace seal ring

6. Reassemble clutches and reinstall at engine reduction gear

7. Mount conical jackets. Tightening torque as per technical manual is

1216Nm

8. Rig entire assemblies into place and reinstall and screw into clutch hub and gear flange.

Note: Pay close attention during assemblies to central feed line

9. Insert split intermediate ring between conical jacket and engine flange and fix by installing straight pins

10. Pay attention to marked points and position during reinstallation

11. Insert aligning bolts and screw on strain washers

12. Perform measurements of axial distance and radial alignment check of clutch as per guidance in technical manual and as per Factory Technician.

Make note of axial distance in report

13. Reinstall all detached interferences paying close attention to keeping contaminants out of system.

14. All piping shall be installed with new gaskets or seals and have new flange shields installed over flanges

15. All tubing and wiring shall be installed in brackets and hangers with appropriate chafing gear.

16. All Jacketwater piping in way of repairs shall be re-lagged and painted Note: Lube Oil Supply gage lines shall have new brackets installed to rigidly support piping through entire run aft of clutches to prevent vibration damage

17. Former After Cooler drain alarm pots shall be removed and not reinstalled (if not done so already)

18. Activate and perform static tests on clutches with Factory Technician making all initial settings.

19. Technician shall also survey and provide report on Reduction Gear and Shaft Brake at this time.

• Dock Trial and Seatrial to be scheduled once contract is awarded and must be attended by Factory Technician and Contractor representatives to observe rebuilt clutches for proper settings, time delays, and operation Note: Contractor is responsible for supplying the TMS technician to assist with the propulsion controls in the event that is found to be necessary to assist with the Dock Trial and Seatrial

Technical Marine Service (TMS) Contact information:

Shane Grendahl or Steve Brox 6040N Cutter Circle Suite 302 Portland, Oregon 97217 Phone: 503-285-8947 sbrox@tms-usa.com sgrendahl@tms-usa.com

DELIVERABLES

Two (2) each hard copies of all shop notes and measurements and final setting data to be supplied Chief Engineer

Electronic copy to Chief Engineer and COR

ADDITIONAL WORK AND SUPPLEMENTAL ITEMS

ADDITIONAL UNDISCOVERED WORK OR PARTS

Contractor to submit a written Condition Found report (CFR) to the COTR for any additional work outside the contract. Approval for additional work must be approved by either the COTR ($5000 or less) or the Contracting Officer (over $5000)

Contractor to provide cost breakdowns as they relate to labor, material, subcontractors and travel costs, if applicable. Supplementary costs must be approved by COTR by written CFR, RFQ, Quotation and Delivery Order process.

Supplementary Labor

Contractor 150hrs @ $______/hr = $___________________________

Technician 40hrs @ $_____/hr = $__________________________

Supplementary Material

$20,000 mailto:sbrox@tms-usa.com mailto:sgrendahl@tms-usa.com