Wartsila RT-flex50-D User Manual

Maintenance
0380−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
3/ 7
Group Component Work to be carried out Intervals
3206−1 Turning gear − Inspection interval of turning gear acc. to instructions of
turn. gear manufacturer
− Re-lubrication of tooth flanks of pinion & flywheel,
depending on visual inspections, however every
2000 Op. h of diesel engine
− Check screwed connections,
first time after one year (if necessary retighten)
12 000 Op. h
Connecting rod
bearings
− Check bearing clearances (see 0330−1) 6000−8000 Op. h
3303−2 − Inspect bottom end bearing
(life time of shell 60 000−72 000 Op. h)
30 000−36 000 Op. h or
acc. to class. society
3303−3 − Inspect top end bearing 30 000−36 000 Op. h or
acc. to class. society
3326−1 Guide shoe,
crosshead pin
− Check clearances 6000−8000 Op. h
3326−2 − Remove crosshead as required
3403−1 Piston − Remove, clean and measure ring grooves
(cylinder liner with antipolishing ring and chrome-
ceramic uppermost piston ring)
18 000−20 000 Op. h
− Check tightness on piston in situ and with running
oil pump, visual check through scavenge ports
after refitting
3403−3 − Dismantling and assembling (open cooling space
& clean same, min. one piston every three years)
as required
3403−4 − Check condition of the piston top surface at every piston removal
− Visual check through scavenge ports to piston,
piston rings and cylinder liner
(rotate crankshaft with turning gear)
1500−3000 Op. h
Piston underside − Check condition of space and clean it as required 1500−3000 Op. h
− Check drains for free passage 1500−3000 Op. h
3425−1 Piston rings − Replace all piston rings
If piston is pulled out before overhaul interval, re-
move and clean piston rings only if necessary and
measure wear rate (i.e. due to high groove wear),
otherwise do not remove piston rings and clean
ring gaps only
18 000−20 000 Op. h
4
Start interlock − Check electric and pneumatic interlocks
(see Operating Manual 4003−1)
quarterly
4103−1 Driving wheels − Check condition of teeth 6000−8000 Op. h
− Check running clearance and backlash of teeth 6000−8000 Op. h
2010
I
nspection and Overhaul Intervals (Guidelines)

Wartsila RT-flex50-D Specifications

General

Brand	Wartsila
Model	RT-flex50-D
Category	Engine
Language	English