Maintenance0380−1/A1
Winterthur Gas & Diesel Ltd.
6/ 10
Group Component Work to be done Intervals & Lifetime
(operation hours)
Starting air
shut-off valve
− Release the pressure / bleed the starting air
inlet (manifold) pipe
after each manoeuvring
period
4325−1 − Disassemble and clean. Make sure that the
important parts: seat, springs and sealing rings
are serviceable
− Do an overhaul of the common start valve
(SPC Control valve complete, group 4325−2)
30 000 to 36 000
18000
Estimated lifetime: Staring air shut-off valve engine lifetime
Control air filter − Drain the filter
− Clean the filter
weekly
6000
5
5551−1 Servo oil pump − Replace servo oil pump either with new one
or a pump re manufactured by WIN GD
service provider
60000 (Bosch)
5551−1 Servo oil pump
drive
− Do a check of the pinion and drive wheels to
servo oil pump drive
3000
− Do a check of the filter below the plug in the
compensator for particles
2000
Estimated lifetime: pinion bearing bushes in the
supply unit
90 000 replace if
necessary
5552−1 Fuel oil pump
drive
− Camshaft: Do a check of the running surface of
cams, rollers and roller guides (first time after
500 Operation hours)
3000
− Check pinion and driving wheels to fuel oil
pump drive
3000
− Camshaft: do a random check of the bearing
clearances
12 000
− Camshaft: Do a check of the thrust bearing
clearances
36 000
Estimated lifetime: Supply unit camshaft bearings 90 000 replace if
necessary
5556−1 Fuel pump − Do a random flow check of the lubricating oil 6000
− Do a check of the fuel oil leakage from the fuel
pump cover (the O-ring in the non-return valve
can become weak)
weekly
− Re manufacture fuel pump or overhaul on board 18 000 − 22 000
Inspection and Overhaul Intervals (Guidelines)
2020−06
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