Maintenance
0380−1/A1
Winterthur Gas & Diesel Ltd.
7/ 11
Group Component Procedure Intervals and Service
Life (operation hours)
5552−2 Fuel oil pump
drive
− Camshaft: Do a check of the running surface
of cams, rollers and roller guides (first time
after 500 Op. h)
3000
− Check pinion and driving wheels to fuel oil
pump drive
3000
− Camshaft: Do a check of the bearing
clearances at random positions
12000
− Camshaft: Do a check of the thrust bearing
clearances
36000
− Estimated service life: supply unit camshaft
bearings
90000 (replacement if
required)
5555−1 Pilot fuel supply
unit
− Lubricate the flexible coupling of the pilot fuel
pump
1500 to 3000
(regardless of the
operating mode)
− Replace the pilot fuel pump 24000 (regardless of
the operating mode)
− Replace the oil filter cartridges. (the filter
cartridges must be replaced earlier if the
pressure difference indicator shows high
pressure increase)
1000 (regardless of
the operating mode)
− Clean the wire gauze and filter housing. 1000
− Estimated service life: Pilot fuel pump 24000
5556−1 Fuel pump − 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
18000 to 22000
− Estimated service life: Fuel Pump 18000
5562−1 Fuel pressure
control valve
(PCV)
− Do a check of the shutdown function (refer to
the Operation Manual 4003−1)
3000
− Removal and function check 6000
− Do an overhaul Only necessary if the
PCV fails
− Estimated service life: PCV Engine lifetime
5562−2 Fuel
overpressure
safety valve /
relief valve
− Do a function check on a test bench 24000 to 36000
5564−1 Flow limiting
Valve (FLV)
− Do an inspection. Clean the piston rod and
piston running surface
12000
Inspection and Overhaul Intervals (Guidelines)
2020
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