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]
Lubrication of tooth flanks of pinion and flywheel, related to visual
inspections, however latest each 2000 Op. h of main engine
Check screwed connections, first time after one year
Connecting rod bearings (Group
33xx)
Check bearing clearances (see 0330-1)
Bearing edge check by wire
Bottom end bearing inspection is only necessary if bearing clearance, wire
check, oil analysis or crankcase inspection indicates excessive wear or
damage.
at indications of excessive
wear or damage
Top end bearing inspection is only necessary if bearing clearance, wire
check, oil analysis or crankcase inspection indicates excessive wear or
damage.
at indications of excessive
wear or damage
Random inspection of connecting rod top end bearing and bottom end
bearing
Estimated lifetime: Connecting rod bottom end bearings
90000 (replacement if
required)
Estimated lifetime: Connecting rod top end bearings
90000 (replacement if
required)
Guide shoe, crosshead pin (Group
33xx)
18000 - 36000 (condition
based)
Check tightness on piston in installed position and with running oil pump,
visual check through scavenge ports
Disassembly and assembly (open cooling space and clean same, min. one
piston each three years)
Check condition of the piston top surface
Visual check through scavenge ports to piston, piston rings and cylinder
liner
Measure ring grooves, inspect the chromium plating and rechrome as
necessary
18000 - 36000 (condition
based)
Estimated lifetime: Piston head ring grooves
Piston head surface, full remanufacturing
Check condition of space and clean as necessary
Make sure that the drains and orifices are not blocked
Piston rings (Group 34xx)
Measure thickness of chrome-ceramic layer
Replace piston rings based on remaining coating thickness
18000 - 36000 (condition
based)
Estimated lifetime: Piston rings
Check electric and pneumatic interlocks (see Operating Manual 4003-1)
Driving wheels (Group 41xx)
Check running clearance and backlash of teeth
Estimated lifetime: driving wheels
Starting air shut-off valve (Group
43xx)
Release pressure / vent starting air inlet (manifold) pipe
after every manoeuvring
period
Disassemble, clean and check (Important parts are: seat, springs and
sealing rings)
Do an overhaul of the common start valve (SPC: Control Valve Complete,
Group 4325-2)
Estimated lifetime: Starting air shut-off valve
Servo oil pump (Group 55xx)
Replace servo oil pump with new one
Maintenance Intervals /
Lifetime
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