Maintenance0380−1/A1
Winterthur Gas & Diesel Ltd.
6/ 11
Group Component Procedure Intervals and Service
Life (operation hours)
− Piston head surface, full re-manufacture 72000
Piston
underside
− Do a check of the condition of the piston
underside and clean as necessary
1500 to 3000
− Make sure that the drains and holes are not
blocked
1500 to 3000
3425−1 Piston rings − Measure the thickness of chrome-ceramic
layer
1500 to 2000
− Replace the piston rings. Use the remaining
thickness of chrome-ceramic layer to make a
decision.
18000 to 36000 (on
condition)
− Estimated service life: Piston rings 18000 to 30000
4
Start interlock − Do a check of the electrical and pneumatic
interlocks (refer to the Operation Manual
4003−1)
Quarterly
4103−1 Driving wheels − Do a check of the tooth condition 6000 to 8000
− Do a check of the running clearance and tooth
backlash
6000 to 8000
− Estimated service life: driving wheels Engine lifetime
Starting air
shut-off valve
− Release the pressure in the starting air inlet
(manifold) pipe
After each
maneuvering period
4325−1 − Disassemble, clean and do a check (important
parts are: seat, springs and sealing rings)
30000 to 36000
− Do an overhaul of the common start valve
(SPC: Control Valve, Group 4325−2)
18000
− Estimated service life: Starting air shut-off
valve
Engine lifetime
Control air filter − Drain the filter Weekly
− Clean the filter 6000
5
5551−1 Servo oil pump − Replace the servo oil pump with new item or a
pump re−manufactured by WinGD service
provider
50000 (Dynex)
5552−1 Servo oil pump
drive
− Do a check of the pinion and driving wheels to
the servo oil pump drive
3000
− Do a check of the filter below the plug in the
compensator for particles
2000
− Estimated service life: supply unit pinion
bearing bushes
90000 (replacement if
required)
Inspection and Overhaul Intervals (Guidelines)
2020
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