HB-244_01_(FRV40-225-006-010)_Stern_Tube_Bearing_and_Shaft_Seal_(pages_1-20).pdf

FRV40-225-006-010

DESCRIPTION, OPERATION, INSTALLATION AND

MAINTENANCE INSTRUCTIONS

Stern Tube Bearing (Thordon Compac) and Shaft Seal (Kobelco)

Halter Marine, Inc.

13085 Seaway Rd.

P.O. Box 3029 Gulfport, MS 39505

50-SPNA-1-00031

PUBLISHED BY DIRECTION OF NOAA

FRV40-225-006-010

DESCRIPTION, OPERATION, INSTALLATION AND

MAINTENANCE INSTRUCTIONS

Stern Tube Bearing (Thordon Compac) and Shaft Seal (Kobelco)

13085 Seaway Rd.

P.O. Box 3029 Gulfport, MS 39505

PUBLISHED BY DIRECTION OF NOAA

26 SEP 2005

RECORD OF CHANGES

Change No.

Date Title and/or Brief Description Signature of Validating Officer

APPROVAL AND PROCUREMENT RECORD PAGE

APPROVAL DATA FOR: FRV40-225-006-010

TITLE OF MANUAL: Stern Tube Bearing and Shaft Seal

APPROVAL AUTHORITY: NOAA

Contract Number

Ship Applicability

Qty Of Manuals

Building Yard

50-SPNA-1-00031 FRV40-225 2 EA Halter Marine Inc.

REMARKS:

CERTIFICATION: It is hereby certified that FRV40-225-006-010 to be provided under contract 50-SPNA- 1-00031 has been approved by the approval data shown above.

Date:________________ Chand, LLC Mathews, LA 70375

CAGE CODE: 0D5X4

VALIDATION PERFORMANCE

Title of Publication

Stern Tube Bearing and Shaft Seal

Contractor Sub-Contractor (If

Performing Validation)

Contract No.(s) and Purchase Orders, If Applicable

Chapter

Section Paragraph Date Validation Completed

Check here if Not Validated

Contents of this manual have been validated and certified to be applicable to the equipment furnished under the above procurement as specified for Validation.

Name & Authority of Validating Officer: Signature of Validating Officer:

FOREWORD

This manual is intended to clearly and accurately reflect the actual configuration of the installed equipment described for the FRV40-225 Stern Tube Bearing and Shaft Seal. Users are urged to report instances noted wherein the manual does not achieve this objective.

This technical manual provides the instructions necessary to operate, to perform maintenance on and troubleshooting of the Stern Tube Bearing and Shaft Seal. The text is broken down as follows:

Section 1- Overview

DanLe Section 2 - System Drawings Section 3 - Thordon Compac Information Section 4 - Installation-Operation Manual Kobelco Water Lubricated Shaft Seal (Type KW)

Section 1 - Overview

The Stern Tube Seal bearing is custom manufactured for the NOAA FRV40-225. The Thordon Compac illustrated parts list is provided in DWG#15312-1A. DWG # 1531-2A illustrates the complete assembly (with the bearing carrier) and the Compac Bearing installed. DWG # 15824 B illustrates a fully finished bearing insert.

Note that the insert is made from two pieces of material in order to achieve the finished length. The two pieces of stock are identical and can be interchangeable from the fore and aft position.

It is recommended that a Thordon Bearing representative be on-hand should a bearing need to be changed. Replacement/spare material is rough molded (RM), meaning that that it is over and under size. The Inside Diameter (ID) and Outside Diameter (OD) will need to be finished machined. The replacement/spare is offered this way to allow a "skim cut" to be taken on the shaft liner should it be needed.

At that point, the Thordon representative would then machine the bearing to fit the new undersized shaft. Due to the sensitivity to temperature changes during the machining process, it is very important that a Thordon Bearings representative be present for machining. Failure to compensate for temperature differences during the machining process can cause a bearing failure.

SECTION 2

SYSTEM DRAWINGS