Copyright Winterthur Gas & Diesel Ltd. All rights reserved. By taking possession of the drawing, the recipient recognizes and honors these rights. Neither the whole nor any part of this drawing may be used in any way for construction, fabrication, marketing or any other purpose nor copied in any way nor made accessible to third parties without the previous written consent of Winterthur Gas & Diesel Ltd.
Intervals & Lifetime
[operating hours]
Check pinion and driving wheels to servo oil pump drive
Check filter below the plug in the compensator for particles
Estimated lifetime: supply unit pinion bearing bushes
90000 (replacement if
required)
Camshaft, check running surface of cams, rollers & roller guides (first time
after 500 Op. h)
Check pinion and driving wheels to fuel oil pump drive
Camshaft, check bearing clearances at random position
Camshaft, check thrust bearing clearances
Estimated lifetime: supply unit camshaft bearings
90000 (replacement if
required)
Pilot fuel supply unit (Group 87xx)
Lubricate the flexible coupling of the pilot fuel pump
1500 - 3000 (regardless of
the operating mode)
Replace the pilot fuel pump
24000 (regardless of the
operating mode)
Replace the pilot fuel oil filter cartridges ( the 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.
Estimated lifetime: Pilot fuel pump
Random flow check of lubricating oil
Do a check of the fuel oil leakage from the fuel pump cover (the O-ring in
the non-return valve can become weak)
Remanufacture fuel pump or overhaul on board
Fuel pressure control valve (PCV,
group 55xx)
Check shut-down function (see Operation Manual 4003-1)
Removal and pressure check
only necessary if PCV fails
Estimated lifetime: Fuel pressure control valve (PCV)
Fuel overpressure safety valve /
relief valve (Group 55xx)
Function check on test bench
Flow limiting valve (FLV, group 55xx)
Inspect and clean piston rod
6000 (12000 in case of
MGO usage)
Piston replacement (piston spare kit)
Subject to actual conditions,
expected lifetime 48’000 (or
6~7 years)
Expected lifetime FLV housing
Servo oil rail (Group 56xx)
Replace hoses (at least every 5 years)
Exhaust valve control unit (Group
56xx)
Random check of piston and slide rod
Check VCU last chance filter
Replace 4/2 solenoid valve
Estimated lifetime: Exhaust valve control unit
Fuel pump actuator (Group 55xx)
Check for free movement of regulating linkage, lubricate movable parts
Replace fuel pump actuator with a new item or a remanufactured fuel
pump actuator from maker
Scavenge air receiver (Group 64xx)
Check and clean air flaps
Make sure water drain pipes and orifices are not blocked
Turbocharger (Group 65xx)
Wash-cleaning of blower in service
Wash-cleaning or dry cleaning of turbine in service
Maintenance Intervals /
Lifetime
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