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Engineering excellence that keeps Sri Lanka Navy shipshape

Sri Lanka Navy is a technology driven force which possesses enormous capability for maintaining own assets which are worth billions of rupees. Sri Lanka Navy believes in maintaining in-house maintenance capability rather than outsourcing which had proven to be of immense value during the humanitarian operation thus saving millions of rupees to the nation. The main engineering workshops which are functioning in respective naval areas undertake most of the repairs/maintenance of ships/craft and associated systems to keep the fleet in optimum operational state to achieve SLN vision and mission. These workshops are situated at the most suitable locations considering the deployment of craft/ availability of facilities and other services/ nature of repairs or routines as follows:

a. Sri Lanka Naval Dockyard - Trincomalee

     (1) Fast Attack Craft (FAC) Fleet Workshop

     (2) Fast Gun Boat (FGB) Workshop.

     (3) MTU Workshop

     (4) Inshore Utility Craft (IUC) Workshop.

     (5) Offshore & General Engineering (OGE) Workshop

     (6) Central OBM Workshop.

     (7) Central Fuel Injection Pump Room (CFIPR).

     (8) Refrigeration and Air Conditioning Workshop

     (9) Command Slipway and Shipwright Related Workshops

    (10) Machine Shop.

b. Inshore Patrol Craft Construction Project - SLNS Thakshila (Welisara)

c. Central generator Workshop - SLNS Mahasen (Welisara)

d. Central Yanmar Workshop - SLNS Pandukabaya (Poonewa)

e. Deutz Workshop - SLNS Thakshila (Welisara)

f. Central Non Destructive Testing Unit - SLNS Thakshila (Welisara)

g. No 01 and 02 Slipways - SLNS Dhakshina (Galle)

h. Central Cummins Workshop - SLNS Dhakshina (Galle)

j. Automobile Engineering Workshops

Sri Lanka Naval Dockyard - Trincomalee

SLN dockyard is the premier technical organization and the heart of the engineering branch where most of the specific workshops are situated and functioning under the supervision of Commodore Superintendent Dockyard (East). SLN Dockyard was inaugurated by the British in the year 1816 and commissioned as SLN Dockyard on 01st March 1985. SLN Dockyard comprises 25 Marine Engineer Officers, 07 Shipwright Officers, 930 Engineering Sailors and 24 Civil Tradesmen. SLN Dockyard was awarded the ISO 9001:2008 certification in 2012 for the maintenance of required standards of the work and services carried out by the workshops and subsequently upgraded to ISO 9001: 2015 in 2017. Further, SLN Dockyard has been recognized by the Institution of Engineers in Sri Lanka as a training establishment since 2012. Further, selected Engineering undergraduates from the University of Moratuwa undergo their Industrial Training, which is a part of their degree programme, in SLN Dockyard Trincomalee every year.

FAC Fleet Workshop

The workshop functions under four Marine Engineer Officers and 93 Engineering Sailors qualified in Deutz engines, MJP, Kamewa, Lips water jets, Arneson Surface Drive, conventional propulsion systems and Cummins, Kubota, Northern Light and Caterpillar Generator repairs. The workshop is capable of undertaking any type of repairs (except E 60 and E 70 routines of Deutz 620 engines) pertaining to above mentioned propulsion systems and auxiliary machinery fitted onboard FACs. The main role of the workshop is specified as follows:

a. Attend all types of repairs / routines (except E60 and E 70 routines) of Deutz TBD 604 / TBD 620 engines and Reintjes gearboxes (except major overhaul) fitted in FACs.

b. Attend running/ routine repairs of MTU engines fitted onboard FACs except W5/ W6.

c. Attend all types of running repairs / major overhauling of water jets (Lips, Kamewa, MJP)/ conventional and ASD propulsion systems of FACs.

d. Undertaking all engineering related works in Routine Underwater Maintenance of FACs.

e. Ordering spares and forecasting routines for all above tasks and maintain sufficient stocks for all FACs in SLN fleet.

f. Conduct training of personnel as per the scheduled programme by NHQ.

g. Undertaking all maintenance/ major overhauling of Cummins, Onan Kubota, Northern light and Caterpillar generator prime movers fitted onboard FACs.

h. Undertaking all maintenance and repairs of pumps and other associated system machineries onboard FACs (except Air Conditioning and Refrigeration).

 (Part - II)

FGB Workshop:      

             The Fast Gun Boat (FGB) workshop functionsunder 04 marine engineering officers and comprises 78 engineering sailors. Different types of repair sections of the FGB workshop are as follows:

   a. Z 12 V 190 BCJ Main Engines Repair Section

   b. L 12 180 Main Engines Repair Section

   c. Deutz TBD 616 V 12 Main Engines Repair Section

   d. Fuel Injection Pump Room

   e. L 12 180 Main Engines’ Reverse Clutch Mechanism Repair Section

   f. SCG 7001 Gearboxes Repair Section

   g. Pump/ Compressor Repair Section

Routines carried out by the FGB workshop are as follows:

   a. Major overhauling of Z 12 V 190 BCJ and L 12 180 main engines having capacity up to 1000 kW

   b. Major overhauling of gear boxes related to Z 12 V 190 BCJ and L 12 180 and main engines, Reintjes WVS 430/1 gearbox of Deutz 616 V12 main engines

   c. Major overhauling of generators belonging to FGBs

   d. Major overhauling of following fuel injection pumps belonging to FGBs

        (1) FIP of L 12 180 Main Engines

        (2) FIP of Z 12 V 190 BCJ Main Engines

        (3) FIP of MWM D 234 V6 Generator

        (4) FIP of 4135 CAF /ACAF Generator

        (5) FIP of X 4105 BCF/ CF Generator

e. The FGB workshop attends to docking related matters of all FGBs except P 34 series FGBs.

f. It carries out all breakdowns/ running repairs of pumps, compressors, winches, capstans and steering systems fitted onboard FGBs.

IUC Workshop:

             The workshop functions under 02 marine engineering officers and comprises 54 engineering sailors and 01 civil tradesman. Some of the major repairs/ maintenances undertaken by the IUC workshop are as follows:

   a. Routine Under Water Maintenance of LCM, LCU, IPCs, CPCs, RIBs

   b.   Routine Maintenance of YANMAR 6LY 2A STP engines

   c.   Routine Maintenance of CUMMINS 6BTA 5.9 MI/ MII engines

   d.   All periodic routine maintenance on main & auxiliary engines including system repair & monitoring the performance of entire machinery of LCM & LCU

   e.   Routine Maintenance of engines on board small craft and Routine Under Water Maintenance of Trawlers and Wallams

   f.   Carrying out various types of trials on small boats

   g.   The IUC workshop staff undertakes following training programs annually:

      (1)        CPC/ IPC familiarization course       10 Working days.

      (2)        LCM/ LCU familiarization course      07 Working days.

      (3)        Hamilton water jet HJ 273/ 274         05 Working days.

Central OBM Workshop:

             The Central OBM workshop functions under two marine engineering officers and comprise 48 engineering mechanic sailors and one civil tradesman. The Central OBM workshop undertakes following repairs:

   a.   Major overhaul of 115 and 200 Hp OBMs (attended at 900 total running hours)

   b.   Major overhaul of 75, 90 and 140 Hp OBMs (Condition Based Maintenance)

   c.   Breakdown repairs of all high power OBMs used in SLN

   d.   Breakdown repairs of all low power OBMs used in ENA

Following training courses are undertaken by the Central OBM workshop:

   a.   Type training on Yamaha high power OBM MOH                      - Once in a year (14 Days)

   b.   Type training on low power OBMs                                               - Once in a year (10 Days)

   c.   Type training on high power Mercury OBM MOH                       - Once in a year (14 Days)

   d.   FGDs and Arrow familiarization for seaman sailors               - Thrice in a year (7 Days)

   e.   Low power OBM maintenance course for FGD operators     -Twice in a year in line with major draft     (3-4 Days)

   f.    Familiarization classes for phase III ME sailors of NMA         - As per the NMA training schedule

MTU Workshop:

              The MTU Workshop functions under 03 marine engineering officers and 68 engineering sailors qualified in MTU engines. The task of the MTU Workshop is to maintain the operational availability of all MTU engines which have the capacity up to 2040 kW and ZF Gearboxes of FACs in the ENA and attend major routines and major break down repairs of the same engines and gearboxes used in the SLN. Major routines undertaken by the workshop are as follows:

   a.   W5 Routine of MTU engines (at 3000 hrs)

   b.   W6 Routine of MTU engines (at 6000 hrs)

   c.   A5 Routine of ZF gearboxes  (at 15000 hrs)

Following training courses are undertaken by the MTU workshop:

a. Type training on W2 routine                                                                    - Twice in a year (04 days)

b. Type training on W3/W4 routines                                                           - Twice in a year (04 days)

c. Type training on W6 routine                                                                     - Once in a year (30 days)

d. Type training on QL1/QL2 of MTU 12 V 4000 M90 engine routine   - Once in a year (04 days)

e. Type training on ZF gearbox (Major Overhaul)                                          - Twice in a year (07 days)

To be continued...