Periodic maintenance schedule – Cub Cadet Yanmar 3TNV72 User Manual
Page 77

PERIODIC MAINTENANCE
5-16
TNV IDI Service Manual
Periodic Maintenance Schedule
Perform periodic maintenance procedures in an 
open, level area free from traffic. If possible, 
perform the procedures indoors to prevent 
environmental conditions, such as rain, wind, or 
snow, from damaging the machine.
Yanmar Replacement Parts
Yanmar recommends that you use genuine Yanmar 
parts when replacement parts are needed. 
Genuine replacement parts help ensure long 
engine life.
Required EPA / ARB Maintenance - 
USA Only
To maintain optimum engine performance and 
compliance with the Environmental Protection 
Agency (EPA) Regulations Non-road Engines and 
the California Air Resources Board (ARB, 
California), it is essential that you follow the 
Periodic Maintenance Schedule on page 5-16 and 
Periodic Maintenance Procedures on page 5-18.
EPA / ARB Installation Requirements 
- USA Only
The following are the installation requirements for 
the EPA / ARB. Unless these requirements are met, 
the exhaust gas emissions will not be within the 
limits specified by the EPA and ARB.
Maximum Exhaust Gas Restriction shall be:
• 3TNV72: 1.71 psi (11.8 kPa; 1200 mm Aq) or
less
Maximum air intake restriction shall be 0.90 psi 
(6.23kPa; 635mm Aq) or less. Clean or replace the 
air cleaner element if the air intake restriction 
exceeds the above mentioned value.
PERIODIC MAINTENANCE 
SCHEDULE
Daily and periodic maintenance is important to 
keep the engine in good operating condition. The 
following is a summary of maintenance items by 
periodic maintenance intervals. Periodic 
maintenance intervals vary depending on engine 
application, loads, diesel fuel and engine oil used 
and are hard to establish definitively. The following 
should be treated only as a general guideline.
CAUTION
Establish a periodic maintenance plan 
according to the engine application and 
make sure you perform the required 
periodic maintenance at intervals 
indicated. Failure to follow these 
guidelines will impair the engine’s safety 
and performance characteristics, 
shorten the engine’s life and may affect 
the warranty coverage on your engine. 
See Yanmar Warranties section.
Consult your authorized Yanmar dealer 
or distributor for assistance when 
checking items marked with a 
z
.
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TNV_IDI_ServiceManual_(3TNV72 for YN only).book 16 ページ 2007年11月29日 木曜日 午後2時58分
