Maintenance Schedule

MAINTENANCE SCHEDULE WÄRTSILÄ V46 STANDARD ENGINE

1

© Wärtsilä 21 December 2007 W46A4V00BTM01A Rev. 01

MAINTENANCE SCHEDULE

Engines in HFO2, HFO1 and MDO/LFO operation Maintenance interval [hours]

Expected life time [hours]

Component HFO2

HFO1

MDO/LFO

HFO2

HFO1

MDO/LFO

Injection nozzle

3000

3000

3000

6000

6000

6000

Injection pump element

12000

12000

12000

24000

24000

24000

Cylinder head

12000

12000

16000

60000

60000

64000

Inlet valve seat

-

-

-

36000

36000

36000

Inlet valve, guide and valve rotator

-

-

-

24000

24000

32000

Exhaust valve seat

-

-

-

36000

36000

36000

Exhaust valve, guide and valve rotator

-

-

-

24000

24000

32000

12000

12000

16000

-

-

-

-

-

-

60000

60000

64000

Piston skirt/crown, inspection of one

12000

12000

16000

-

-

-

Piston skirt/crown inspection of all

24000

24000

32000

-

-

-

-

-

-

12000

12000

16000

Piston Piston skirt

Piston rings

2

© Wärtsilä 21 December 2007 W46A4V00BTM01A Rev. 01

MAINTENANCE SCHEDULE

Engines in HFO2, HFO1 and MDO/LFO operation Maintenance interval [hours]

Expected life time [hours]

Component HFO2

HFO1

MDO/LFO

HFO2

HFO1

MDO/LFO

12000

12000

16000

72000

96000

96000

Antipolishing ring

-

-

-

12000

12000

16000

Gudgeon pin

-

-

-

60000

60000

64000

-

-

-

36000

36000

36000

-

-

-

36000

36000

36000

Big end bearing, inspection of one

12000

12000

16000

-

-

-

Big end bearing, replacement of all

36000

36000

36000

-

-

-

-

-

-

36000

36000

36000

Main bearing, inspection of one

18000

18000

18000

-

-

-

Main bearing, replacement of all

36000

36000

36000

-

-

-

-

-

-

60000

60000

60000

Camshaft bearing, inspection of one

36000

36000

36000

-

-

-

Camshaft bearing, replacement of all

60000

60000

60000

-

-

-

Cylinder liner

Gudgeon pin bearing Big end bearing

Main bearing

Camshaft bearing

3

© Wärtsilä 21 December 2007 W46A4V00BTM01A Rev. 01

MAINTENANCE SCHEDULE

Engines in HFO2, HFO1 and MDO/LFO operation Maintenance interval [hours]

Expected life time [hours]

Component HFO2

HFO1

MDO/LFO

HFO2

HFO1

MDO/LFO

-

-

-

36000

36000

36000

Turbocharger, mechanical cleaning

12000

12000

12000

-

-

-

Turbocharger bearings, inspection of all

12000

12000

12000

-

-

-

-

-

-

36000

36000

48000

6000

6000

6000

-

-

-

-

-

-

60000

60000

60000

Turbocharger plain bearings

Charge air cooler Charge air cooler cleaning Rubber elements for flexible mounting

4

© Wärtsilä 21 December 2007 W46A4V00BTM01A Rev. 01