Maintenance
0380−1/A1
Winterthur Gas & Diesel Ltd.
5/ 11
Group Component Procedure Intervals and Service
Life (operation hours)
− Lubricate the tooth flanks of the pinion and
flywheel. Related to visual inspections, but at
the latest, each 2000 Op. h of the engine
2000
− Do a check of the screwed connections, first
time after one year
12000
Connecting rod
bearings
− Do a check of the bearing clearances (refer to
0330−1)
6000
− Do a check of the bearing edge with wire 6000
3303−2 − Bottom end bearing inspection is only
necessary if the bearing clearance, wire check,
oil analysis or crankcase inspectionindicates
excessive wear or damage.
At indications of
excessive wear or
damage
3303−3 − Top end bearing inspection is only necessary if
bearing clearance, wire check, oil analysis or
crankcase inspectionindicates excessive wear
or damage.
At indications of
excessive wear or
damage
− Random inspection of connecting rod top end
bearing and bottom end bearing
70000
− Estimated service life: Connecting rod bottom
end bearings
90000 (replacement if
required)
− Estimated service life: Connecting rod top end
bearings
90000 (replacement if
required)
3326−1 Guide shoe,
crosshead pin
− Do a check of the clearances 6000 to 8000
3403−1 Piston − Remove and clean 18000 to 36000 (on
condition)
− Do a check of the tightness on the piston
through the scavenge ports in the installed
position (oil pump in operation)
After installation
3403−3 − Disassemble and assemble (open the cooling
space and clean, minimum one piston each
three years)
As necessary
3403−4 − Do a check of the of the piston top surface At each piston removal
− Do a visual check through scavenge ports of
the piston, piston rings and cylinder liner
500 to 1000
− Visual check of cylinder liner 500 to 1000 (and at
every piston removal)
− Measure the piston ring grooves. Do an
inspection of the chromium plating. Add new
chrome as necessary
18000 to 36000 (on
condition)
− Estimated service life: Piston ring grooves 18000 − 36000
Inspection and Overhaul Intervals (Guidelines)
2020
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