WÄRTSILÄ Vasa R22, Инструкция по эксплуатации, Страница: 69 / 297

Fuel
Overhaul interval
Average load > 75 % Average load < 75 %
HFO 2 8 000 10 000
HFO 1 12 000 14 000
DO 16 000 20 000
04.12 Interval: See table above
Connecting rods
Inspect big end bearing
11.2
Replace big end bearing if necessary. Inspect mating
surface serrations. Measure the big end bore, use form No.
2211V003. 06.2
Connecting rods
Replace connecting rod screws
10.7
Replace connecting rod screws by new ones on 24 000 h at
the latest. Inspect the small end bearings on 16 000 h at the
latest. Replace if necessary. 06.2
Cylinder heads Overhaul of cylinder head 12
Dismantle and clean the underside, inlet and exhaust valves
and ports. Inspect cooling spaces and clean, if necessary.
Grind the valves (often lapping by hand is enough). Inspect
the valve rotators.
Replace the O-rings in the valve guides. 06.2
Cylinder liners
Inspect the cylinder liners
10.4
Measure the bore using form No. 2210V013, replace liner if
wear limits are exceeded.
Hone the liners. Inspect anti-
polishing ring if assembled. Replace if necessary.
06.2
Cylinder liners
Inspect cylinder liner water side
19.2.2
Pull one cylinder liner, on V-engines one per cylinder bank. If
the deposits are thicker than 1 mm, clean all liners and the
engine block water space. Replace the O-rings in the
bottom part by new ones at every overhaul. 10.4
02.3
Main bearings
Inspect the bearing shells
10.2
Replace parts if necessary. 06.2
Piston, piston rings
Inspect pistons and piston rings
11.2
Pull, inspect and clean. Check the height of the ring grooves
(the height clearance of the rings), use form No. 2210V001.
Check the retainer rings of the gudgeon pins. Replace
complete set of piston rings. Note the running-in program.
Starting valves
Check starting valves.
In cylinder head Check starting valves in cylinder head. Replace parts if
necessary. 21.4
22-9845/III Maintenance Schedule 04
MD, HF 04 - 9