Yanmar 3TNV Series, Service Manual

Page: 36 / 213

1. General
21
(4) Perform maintenance without fail.
Note : Inspections to be carried out by the user and by the maker are divided and set down in the “List
of Periodic Inspections” and should be checked carefully.
(5) Maintenance period and Quality guarantee period for exhaust emission related parts
The maintenance of the parts related to the exhaust emission must be carried out in the maintenance
period as shown in the below table.
A guarantee period is that either the operation hours or years shown in the table come first in the
condition that the maintenance inspection was carried out based on the “List of Periodic Inspections”.
Maintenance period Quality Guarantee Period
Parts
Power Rating
Fuel nozzle cleaning Adjustment, cleaning,
repairs for fuel nozzle, fuel
pump, turbocharger,
electronic control unit etc. For nozzle, fuel pump,
turbocharger
37 <= kW < 130 Every 1500 hours
(applied from Tier 2) Every 3000 hours
(applied from Tier 2) 3000 hours / 5 years
19 <= kW < 37
except constant
speed engines >=
3000min
-1
Every 1500 hours Every 3000 hours 3000 hours / 5 years
KW < 19
And constant speed
engines beyond
3000min under
37kW
-1
Every 1500 hours Every 3000 hours 1500 hours / 2 years