Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Chinese site
cce client portal
Alatas on Facebook Follow Alatas on Twitter Follow Alatas on Google Plus Alatas You Tube Channel Alatas Linkedin
 
Windlass Repairs with Mobile A-Frame as Lifting Aid
 

The tanker ship is equipped with a combined mooring and anchor windlass, make Pusnes, windlass type HDU 30-03/ HDU 30-3, with a pulling capacity of 44.8 ton x 9m/min. The forward windlasses at port & starboard side had broken down due to damage to the claw coupling and worn out bearing bushes at the mooring winch main shafts. They were vibrating heavily and in urgent need of repairs.

ALATAS was requested to carry out this major deck machinery repair at anchorage, i.e. at OPL (outer port limit) in Singapore waters as afloat repairs. We were to completely strip down the mooring winch capstan, fabricate and supply new mooring winch drum bushes and replace them on both the Port and Starboard windlass,

The job was carried out completely without hot work and ALATAS own lifting aid was utilized. It is a modular constructed and mobile A-frame, suitable for a trolley & chain block with a lifting capacity of 5.0t. The A-frame was assembled on board and brought into position to lift the winch components via chain blocks & slings.

Following work was carried out:

Attended the vessel at Singapore anchorage and sailed with vessel to the OPL anchorage. Upon attending to the vessel, discussed with Technical Superintendent regarding the windlass problem and the tasks which need to carry out.

1. Prepared the tools and equipment and shifted to the FWD STBD windlass.
2. Assembled ‘A’ frame using by mid ship crane and shifted to the FWD STBD windlass.
3. Informed ship staffs to remove the mooring wire rope from the winch drum.
4. Fabricated the special tools and jacking out the capstan using by hydraulic jack and ‘A’ frame.
5. Removed winch end frame and mooring winch drum using ‘A’ frame, Found bushes were totally damaged.
6. Cleaned main shaft, drum housing and capstan and inspected.
7. Found main shaft diameter (ID 179mm) and pre-machine brass bushes (ID 200) were not match due to maker drawing shown that Shaft diameter 200mm and actual dimension was 175mm.
8. Informed Chief Engineer and Superintendent for the further discussion.
9. Alatas machinist arrived on board vessel together with new bushes.
10. Machinist carried out necessary measurement and fabricated new bushes (ID 179.70 mm and OD 200.70 mm).
11. Installed the fabricated new bushes and mounting frame, and adjusted the alignment using by filler gauge.
12. Installed back the capstan to the main shaft and all removed items. Applied the grease to all greasing point.
13. Carried out function test and alignment check in present of superintendent, Chief Officer and Chief Engineer. Found satisfactory with no noise, no vibration.
14. Proceeded to the Port side anchor windlass to replace bushes and claw coupling.
15. Shifted the ‘A’ frame and tools to the port side windlass.
16. Upon dismantling the drum, found claw coupling was fully cracked. Removed the defective coupling, clean main shaft and installed the new claw coupling.
17. Alatas machinist fabricated the new bushes and replaced the bushes. Installed back all parts as per original manner.
18. Applied the grease to the all greasing point and carried out function test in present of Superintendent, Chief Officer and Chief Engineer. Found satisfactory with smooth operation, no noise and no vibration.
19. Dismantled the ‘A’ frame and carried out housekeeping on the working area. All tools and Equipment were prepared for off- loading and transport back ashore.

Note: Used metal plates to shim the foundation instead of Chockfast.


 

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Tanker Vessel in need of Windlass Repairs

Stbd winch drum

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Stbd windlass view

Port anchor winch brake band

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Modular A-frame on deck

A-frame shift to the FWD anchor windlass

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

After removing mooring winch brake band
Port winch claw coupling cracked

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Mooring Drum removal, using studs, strong-back  & hydraulic jacking

Port winch removing capstan

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Pulling out the capstan

Port winch foundation choke fast base found  broken

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Mobile A-frame lifting beam in action

Removing drum from the shaft

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Removing drum

Stbd winch drum bush totally damaged

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Machining new bushes

A frame in postion to lift up the windlass drum

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Installing new claw coupling

Greasing claw coupling

Windlass Repairs with Mobile A-Frame as Lifting Aid

Windlass Repairs with Mobile A-Frame as Lifting Aid

Bearing sleeve - checking alignment

New bush installed, new greasing hole

Windlass Repairs with Mobile A-Frame as Lifting Aid

 

Testing the winch after repairing. Found good

 

 
 
Download

 

 
 
 
Alatas Latest News
ILO 152 renewal and certification
Inspections and ILO 152 certification
details...
Crane cabin replacement
Crane cabin replacement and general repairs
details...
Liebherr crane luffing cylinder repairs
Liebherr CBW crane luffing cylinder replacements
details...
Crane control system
Ship crane control system replacement
details...
Hose replacement
Hydraulic hose renewal on Liebherr offshore cranes
details...
Crane bumper bars protect lattice boom crane from hook strikes
Crane bumper bars protect lattice crane booms
details...
Dock crane
Critical Dock Crane slew bearing repairs
details...
Hagglund crane
MacGreor Hagglunds Gl2524-2 slew bearing replacementl
details...
MacGregor crane rope sheave changeout
MacGregor crane rope sheave changeout
details...
Searex crane
Commissioning of 210 tons Searex Omnilift Offshore Crane
details...
 
 
 
Alatas Offices & Service Stations
Alatas UK Ltd - Head Office
Unit B, Olympic Park, Low Moor,
Bradford BD12 0LP
Tel: +44 1274 699222
Fax: +44 1274 699215
26 Abercrombie Court, Prospect Road, Arnhall Business Park, Westhill, Aberdeenshire AB32 6FE
Tel: +44 1224 797232
Houston Office, 22015, South Frwy.
Manvel, Texas 77578 USA
Tel: +1 281 431 0707
Fax: +1 281 431 0799
Riedemannstr. 2, 28239 Bremen
Germany
Tel: +49 421 / 61 94 184-0
Fax: +49 421 / 61941845
2203 Winning Centre, 29 Tai Yau Street, San Po Kong, Kowloon, Hong Kong
Tel: +852 2153 2153
Fax: +852 2153 2163
Carretera Carmen-Puerto Real Km. 14.5
Cd. Del Carmen, Campeche. México, C.P. 24157
Tel: +52 (938) 68 8 52 60
Fax: +52 938 110 6823
Jebel Ali Free Zone - South, P.O. Box 263 007
Dubai United Arab Emirates
Tel: +971 4 885 7954
Fax: +971 4 885 7229
Kjøita 6, 4630 Kristiansand,
Norway
Tel: +47 977 48345
Fax: +47 976 48345
C/O: Houston Office, 22015, South Frwy.
Manvel, Texas 77578 USA
Tel: +1 281 431 0707
Fax: +1 281 431 0799
1 Int'l Business Park #03-01E
The Synergy, Singapore 609917
Tel: +65 6861 2336
Fax: +65 6861 6261
Recapital Buiding 5th Floor, Jalan Adityawarman Kav.55, Kebayoran Baru, Jakarta Selatan, 12160
Tel: +62 21 7247679
Fax: +65 6861 6261
No. 51, Lane 3226, Humin Road, Minhang District, Shanghai 201108
Tel: +86 (021) 6296 6612
Alatas on Facebook Follow Alatas on Twitter Follow Alatas on Google Plus Alatas You Tube Channel Alatsa Linkedin Share

© 2018 Alatas Worldwide Group | Privacy Policy

 

  You are here: Home > News > Boom hinge repairs on Kawasaki deck cranes