Emission Regulation; General; Important Items Of Exhaust Emission Regulation; Important Notice - wsm wg972-e4 Workshop Manual

WG972-E4, WSM

3. EMISSION REGULATION

[1] GENERAL

Along with E4 models, are yet available to be used in the following countries per output category.
kW, Disp.
19 < P ≤ 30,
0.825 < L ≤ 1.0
Current and future emission regulations.
Countries Power [kW], Disp. [L]
P ≤ 19, 0.225 ≤ L
CARB 19 < P, L ≤ 0.825
USA 19 < P, 0.825 < L ≤ 1.0
P ≤ 19, 0.225 ≤ L
EPA
19 < P ≤ 30, L ≤ 1.0
P ≤ 19, 0.225 ≤ L
Canada
19 < P
P ≤ 19, 0.225 ≤ L
Gas Engine is not
EU
covered
19 < P < 56
Japan P < 19, 0.225 ≤ L
• *: with evaporative emission regulation

[2] IMPORTANT ITEMS OF EXHAUST EMISSION REGULATION

(1) Important Notice

There are necessary emission-related items for compliance with emission regulations.
For mass-production Kubota prepares the installation instructions.
These instructions are provided for the final engine assemblers who must ensure the engine, exhaust system
(catalyst), intake system, gasoline fuel system and etc, are installed correctly in the engine's certified configuration.
(for EPA only)
Failing to these instructions when installing a certified engine in a piece of non-load equipment violates federal
law (40CFR 1068. 105(b)), subject to fines or other penalties as described in) the Clean Air Act.

(2) Emission-Related Installation Instructions

1) Air Intake System
You must use the original air cleaner and inlet pipe to observe the applicable emissions laws.
2) Exhaust System
Kubota offers certified catalytic converter, catalytic muffler and O
Catalyst parts and O
2
certified our engine.
3) Gasoline Fuel System
If your equipment uses a volatile liquid fuel (such as gasoline), it must use the original fuel system components
to observe the applicable emissions laws.
4) Gaseous Fuel System
You must use only the regulator with vaporizer Kubota offers and assemble the LPG fuel and CNG fuel system
parts according to the instructions.
5) Electrical System
You should wire correctly for securing the performance and safety.
6) Engine Labels
EPA/CARB label must be visible at any time. Be careful not to damage the label.
Model
WG972-E4
2014 2015
6.5/375*
12.1/610
sensor other than Kubota must not be used because other catalyst and O
North
Type
America
E4 Available
2016 2017 2018
8.0/549*
8.0/549*
0.8/20.6*
8.0/610*
8.0/610*
8.0/610
None
12.1/610
None
8/610
sensor.
2
I-7
INFORMATION
Europe Japan
None
Available
Available
HC+NO /CO (g/kW·h)
x
2019 2020 2021
8/610
Σ2.7 to Σ0.8 / 4.4 to 20.6
9Y1211108INI0004US0
9Y1211108INI0005US0
sensor are not
2
9Y1211108INI0006US0
KiSC issued 07, 2015 A