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]
Piston rod gland (Group 23xx)
Estimated lifetime: Piston rod gland
Cylinder cover (Group 27xx)
Do a check for cracks and dirty seat sealing faces of the injection valve.
Make sure that the seat sealing faces have no damage.
at every cylinder cover
removal
Estimated lifetime: Cylinder cover
engine lifetime
(remanufacturing as
required)
Injection valve (main fuel injector,
group 27xx)
Check externally for tightness
after engine stop, before a
longer standstill
Function check (nozzle tip inspection, check LPOP, confirm tightness),
replace O-rings
Exchange nozzle tip (FAST) and replace O-rings
Replace nozzle spare kit (nozzle & coupling nut, valve plate & pilot valve)
and check function
Replace injection valve complete
Starting air valve (Group 27xx)
Check pipe upstream of the valve during operation, if pipes are too hot,
disassemble starting valve
Remove and disassemble one starting valve, from the condition, calculate
the time of overhaul for remaining valves
Make sure that the nut on the solenoid is tight, if necessary tighten the nut.
Solenoid valve; random functional check
Solenoid valve; overhaul on board
Estimated lifetime: Starting valve
Relief valve to cylinder cover
Exhaust valve (Group 27xx)
General inspection of valve housing, valve spindle and valve seat (without
disassembly of the exhaust valve)
Check condition and wear of valve spindle (if necessary grind the seat)
36000 (initial inspection
18000)
Valve drive: check piston seal ring / air spring & rod seal ring / guide bush
36000 (initial inspection
18000)
Check condition and wear of valve seat
36000 (initial inspection
18000)
Random check of valve drive, outer and inner pistons, damper, thrust
piece
Estimated lifetime: Exhaust valve spindle (Nimonic)
108000 (remanufacturing as
required)
72000 (remanufacturing as
required)
Pilot injection valve (Group 27xx)
Check externally for tightness
after engine stop before a
longer standstill
Replace nozzle spare parts set & perform function check
Replace O-rings and sealing ring
everytime when the pilot
injector is removed from the
holder
Replace pilot injection valve complete
Measure crank deflection, always after the ship grounded and after each
docking
Torsional vibration damper
(Group 31xx)
Get a silicon oil sample from viscous vibration damper (based on results of
1
st
sample, interval for taking further samples will be decided by damper
manufacturer)
first time after 15000- 18000
Inspection interval and dismantling of vibration damper
in accordance with
instructions of the damper
manufacturer
Axial damper (Group 31xx)
Disassembly and inspection
Turning gear (Group 32xx)
Inspection interval of turning gear
in accordance with the
instructions of the turning
Maintenance Intervals /
Lifetime
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