WinGD X92 - Page 86

Maintenance0380−1/A1
Winterthur Gas & Diesel Ltd.
4/ 10
Group Component Work to be done Intervals & Lifetime
(operation hours)
Exhaust valve
(cont’d)
Estimated lifetime: Exhaust valve (Nimonic) 108000 (re-manufacture
as necessary)
Estimated lifetime: Exhaust valve seat 72000 (re-manufacture
as necessary)
3
3103−1 Crankshaft − Measure the crank deflection. Always after the
ship has touched the sea bed and after each
dock.
6000
3130−1 Torsional
vibration damper
− Get a silicon oil sample from the viscous
vibration damper (related to the results of 1st
sample. The damper manufacturer will make a
decision about the intervals to take more
samples
first time after 15 000 to
18 000
3130−2 − Disassemble inspection interval of vibration
damper
In accordance with
instructions of the
damper manufacturer
3140−1 Axial damper − Disassemble and inspection 36 000 to 48 000
3206−1 Turning gear − Inspection interval of turning gear In accordance with the
instructions of the
turning gear
manufacturer
− Lubrication of tooth flanks of pinion and
flywheel, related to visual inspections, but latest
each 2000 Op. h of main engine
2000
− Do a check of the connections. First time after
one year
12000
3303−2 Connecting rod
bearings
− Do a check of the bearing clearances (refer to
0330−1)
6000
− Use wire to do a check of the bearing edges 6000
− Do an inspection of the bottom end bearing
(only necessary if bearing clearance, wire
check, oil analysis or crankcase inspection
shows worn parts or damage)
at indications of too
much wear or damage
3303−3 − Do an inspection of the top end bearing (only
necessary if bearing clearance, wire check, oil
analysis or crankcase inspection shows worn
parts or damage)
at indications of too
much wear or damage
− Do a random inspection of connecting rod top
end bearing and bottom end bearing
70 000
− Estimated service life: Top end bearings 90 000 (replace if
necessary)
− Estimated service life: Bottom end bearings 90 000 (replace if
necessary)
Inspection and Overhaul Intervals (Guidelines)
2020−06