Yanmar 3TNV Series, Service Manual

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1. General
1.6 Exhaust gas emission regulation
The engines in this manual have been certified by the US EPA, California ARB and/or the 97/68/EC
Directive.
California
Proposition 65 Warning
Diesel engine exhaust and some of its constitutions are known to the State of California to cause
cancer, birth defects, and other reproductive harm.
California
Proposition 65 Warning
Battery posts
，
terminals
，
and related accessories contain lead and lead compounds
，
chemicals
known to the State of California to cause cancer and reproductive harm
．
1.6.1 The Emission Standard in USA
(1) EPA Nonroad Diesel Engine Emission Standards
g/kW·hr(g/bhp·hr)
Engine Power Tier Model Year NOx HC NMHC + NOx CO PM
Tier 1 2000 - - 10.5 (7.8) 8.0 (6.0) 1.0 (0.75)
kW < 8
(hp < 11)
Tier 2 2005 - - 7.5 (5.6) 8.0 (6.0) 0.80 (0.60)
Tier 1 2000 - - 9.5 (7.1) 6.6 (4.9) 0.80 (0.60)
8 <= kW < 19
(11 <= hp < 25)
Tier 2 2005 - - 7.5 (5.6) 6.6 (4.9) 0.80 (0.60)
Tier 1 1999 - - 9.5 (7.1) 5.5 (4.1) 0.80 (0.60)
19<= kW < 37
(25 <= hp < 50)
Tier 2 2004 - - 7.5 (5.6) 5.5 (4.1) 0.60 (0.45)
Tier 1 1998 9.2 (6.9) - - - -
Tier 2 2004 - - 7.5 (5.6) 5.0 (3.7)
37 <= kW < 75
(50 <= hp < 100)
Tier 3 2008 - - 4.7 (3.5) 5.0 (3.7)
0.40 (0.30)
Tier 1 1997 9.2 (6.9) - - - -
Tier 2 2003 - - 6.6 (4.9) 5.0 (3.7)
75 <= kW < 130
(100 <= hp < 175)
Tier 3 2007 - - 4.0 (3.0) 5.0 (3.7)
0.30 (0.22)
Note1) The EPA emission regulation under 130kW is mentioned below.
Note2) As for Model year, the year which a regulation is applicable to is shown.
Engine classification
Transient smoke standards % opacity
(acceleration/lug/peak modes)
Constant speed engine Not regulated
Variable speed engine 20/15/50 or less
(2) California ARB Emission Regulation
The ARB emission standard is based on that of the EPA.
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