Maintenance
Inspection and maintenance schedules
Task identification
Component
Schedule
Service
Type
Task description
Time limit (h)
Calendar limit
(year)
Replacement
Overhaul
Inspection/Clean
Repair/Adjustment
SL120 Coolant sampling - 2Y X
Check coolant quality. (For more information see:
5.10.1 Collecting coolant sample — SL120,
page 123.)
SL122
Recommended:
First 250 service
hours for a new or
overhauled engine
250 1Y X X
Engine oil replacement. (For more information see:
5.9.6 Changing engine oil — SL101, SL121,
page 118.)
Oil filters and oil filters for cooling jet replacement.
(For more information see: 5.9.4 Changing oil filters
— SL101, page 113.)
It is recommended to check the engine oil charac‐
teristics at the same time. (For more information
see: 5.9.1 Collecting and analyzing oil sample —
SL100, page 111.)
Perform all check before starting and perform a
test run.
Without centrifugal oil filter
SL101
Engine oil filters
standard
250 2Y X
Replace filters. Clean the seal area before removal
the old filter to prevent oil contamination. (For more
information see: 5.9.4 Changing oil filters — SL101,
page 113.)
SL121
Engine oil change
with engine oil
“Category 2”
250 2Y X
Oil change maximum interval. Note: Replace engine
oil at least every 2 years. Final engine oil interval
depends on exchange interval factor according to
engine oil category and fuel sulfur rate. 0<fuel
sulfur rate<0.5%: the factor is 1 (no change on the
engine oil change interval). 0.5<fuel Sulfur rate<1%:
the factor is 1/2 (reduce by 2 times the engine oil
change interval and use only engine oil category 2
or 3). 1<fuel sulfur rate <1.5%: requires additional
approval. No oil Category 1 in case of K175. (For
more information see: 5.9.6 Changing engine oil —
SL101, SL121, page 118.)
Engine oil change
with engine oil
“Category 3”
500 2Y X
With centrifugal oil filter
SL101
Engine oil filters
standard
500 2Y X
Replace filters. Clean the seal area before removal
the old filter to prevent oil contamination. (For more
information see: 5.9.4 Changing oil filters — SL101,
page 113.)
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