Clean Power for Today

Table of Contents

Section

Page

Regulations for Diesel Engines...1 Technologies ...2 Kubota Solutions by Horsepower Class ...3 Explanation of Each Technology ... 4-8

i. DPF – Diesel Particulate Filter

ii. EGR – cooled Exhaust Gas Recirculation

iii. CRS – Common Rail fuel injection System

iv. SCR— Selective Catalytic Reduction

Emissions Control Component Location ...9 The Operator Experience ...10 How is Regeneration Controlled? ... 11-12

i. What does the Operator Need to Do? ii. Lamps & Switches

Emissions Information Summary ...13 The Kubota Dealer’s Role ...14 Warranty & Dealer Support ...15 About Kubota ... 16-17

Regulations for Diesel Engines

The Environmental Protection Agency (EPA) has introduced standards to reduce air pollution from Diesel engines in stages or “Tiers”. The Tiers depend on engine horsepower (HP) and year of manufacture. The goal is to reduce black exhaust smoke (Particulate Matter or PM), Hydrocarbons (HC), Nitrous Oxides (NOx, a major component of smog), and Carbon Monoxide (CO). The following chart shows Tier implementation by year and horsepower group.

4 Year 2011 2012 2013 2014 2015 <25.5 HP 25.5~50 HP 50~75 HP 75~101 HP 101 ~ 175 HP Final Tier 4 Interim Tier 4 Tier 3 Horsepower Group

Beginning with engines manufactured in 2013, all Kubota diesel engines that are rated at less than 75 Horsepower (HP) must meet Final Tier 4 regulations. Engines rated at 75

HP and above must meet interim Tier 4 (iT4) regulations.*

By 2015, all diesel engines manufactured by Kubota must

meet Final Tier 4 regulations.*

Technologies

The need to reduce black smoke (PM) and limit NOx at the same time was a challenge for Kubota engineers. Diesel fuel burns more effi ciently when combustion

temperatures are high, leading to less unburned fuel (soot) emitted through the exhaust pipe. On the other hand, high combustion temperatures also increase the production of NOx, a key component of photochemical smog. Kubota’s solution to conquer both problems includes the following technologies:

•

DPF

–

D

iesel

P

articulate

F

ilter

•

EGR

–

E

xhaust

G

as

R

ecirculation

•

CRS

–

C

ommon

R

ail fuel injection

S

ystem

An additional technology that Kubota is not presently using is called Selective Catalytic Reduction (SCR).

Kubota Solutions by Horsepower Class

Kubota is implementing different solutions — depending on engine horsepower, applications, and emission Tiers. Small engines under 25 HP can comply with Tier 4 through Kubota’s design and effi cient control of the combustion process and without need for DPF muffl ers. Larger engines require one or more of the technologies explained on the subsequent pages.

This table shows which technologies apply by Horsepower Class.

Engine

Horsepower Class Technology To Meet

<25.5 HP Kubota engine design Tier 4

25.5 to 35 HP Kubota engine design +_{EGR + DPF} Tier 4

36 to 75 HP Kubota engine design +_{EGR + CRS + DPF} Tier 4

76 to 135 HP Kubota engine design +_{EGR + CRS + DPF} Interim _{Tier 4}

Note: Certain Kubota models are not presently utilizing these technologies, as the EPA has allowed manufacturers to use existing engine designs for a limited time.

Diesel Particulate Filter (DPF)

The DPF removes black soot (Particulate Matter) from the exhaust gas, so that there is no longer any visible smoke from the exhaust pipe. There are two major parts - the Diesel Oxidizing Catalyst (DOC) and the Diesel Particulate Filter (DPF).

The DOC has two jobs. First, any Hydrocarbons (HC) or Carbon Monoxide (CO) are converted into water and CO2. Secondly, the DOC provides the heat necessary to activate the Regeneration Cycle.

The DPF element catches particulate matter (soot) before the exhaust reaches the atmosphere.

After approximately 15 to 20 hours of operation, the

accumulated soot must be burned away (the time depends on operating conditions).

Regeneration is the process of burning the accumulated soot from the DPF. Kubota customers can choose automatic regeneration or can choose to delay

regeneration until the equipment is located in a non— combustible area outdoors.

It depends on the engine load, but regeneration typically takes about 20 minutes.

Equipment operation can usually continue during regeneration.

After regeneration is complete, there will be a small amount of unburned material, called ash, remaining in the DPF. Ash consists of Iron, Copper, Calcium, Zinc, and other trace materials that will not burn.

The primary source of ash is engine wear, but fuel and lubricants also contribute. After hundreds of regeneration cycles and about 3000 hours of engine operation, the accumulation of Ash will reach a point that will require an off machine cleaning of the DPF.

Exhaust Gas Recirculation (EGR)

Nitrous Oxides (NOx) are a signifi cant cause of smog; the brown layer of air that hangs over many of our cities. EGR reduces NOx by cooling off the combustion process with the introduction of small amounts of cooled exhaust gas into the intake manifold. This system was fi rst used by Kubota in the United States with the introduction of the M108S common rail engine in 2007.

Common Rail System (CRS)

The Common Rail System (CRS) electronically controls the fuel injection quantity and timing, enabling high pressure injections in stages rather than all at once.

Combustion rate is thus optimized for more power, increased fuel economy, greater effi ciency, and lower engine noise.

Engine Control Unit (ECU)

Electronic Fuel Injectors CRS Pump

Selective Catalytic Reduction (SCR)

SCR is a technology that injects a urea/water solution through a catalyst into the exhaust stream of a diesel engine. The urea sets off a chemical reaction that converts NOx into nitrogen and water , which is then expelled through the exhaust pipe.

Source: dieselforum.org SCR is best suited for higher horsepower, heavily loaded engines, where the constant load minimizes the production of particulate matter. Kubota equipment is more

commonly used intermittently, in applications with varying load levels.

For those types of usage patterns, the DPF/EGR/CRS solution is more appropriate. Future emissions standards may require a combination of SCR and DPF/EGR/CRS for some applications.

Component Location (typical)

DPF

The Operator Experience—Clean Power

When an operator starts the engine of a Kubota machine equipped with a DPF, a pleasant surprise is the complete absence of visible exhaust smoke, even when the engine is at full power.

The days of black smoke clouds billowing from a diesel engine are history. The lack of smoke does not mean a reduction of power. Rather, the Kubota design— EGR, CRS, and DPF, provides increased power, fuel effi ciency, and lower noise compared to a mechanically injected engine, while at the same time exceeding government standards for reduction of PM, NOx, HC, and CO.

How is Regeneration Controlled?

Kubota allows the operator to choose when and where to regenerate the DPF. If the machine is operated outdoors and in a non-combustible environment, automatic regeneration is recommended.

If an Auto button is provided, it should be pushed when the engine is started to allow for automatic regeneration. Equipment without an Auto button defaults to automatic regeneration, which then can be stopped by pressing the inhibit switch.

What does the Operator Need to Do?

If the machine is operated outdoors, and in a non-combustible environment, Auto Regeneration is recommended. Here’s how to do it.

Tractors so equipped:

Press Auto Button

Press immediately after starting the engine. Make sure it is lit at all times, unless you want to stop Regeneration.

Equipment without Auto button:

Check Inhibit Switch

Default is Auto operation (lamp OFF). Push if you want to stop Regeneration. Otherwise, leave switch alone.

All Equipment:

Raise Engine RPM Lamp or

Display

Maintain high enough engine RPM to keep this lamp or display OFF.

Layout of Lamps & Switches

(typical, location varies by model)

Tractor

Compact Track Loader

Excavator

Raise engine speed

Raise Engine RPM Lamp Auto Button (if so equipped)

Emissions Information Summary

• The EPA has mandated that diesel engines become

cleaner, and has introduced standards for all engine manufacturers.

• Kubota is fully compliant, and has chosen appropriate

technologies to meet the standards.

• For most engines, a DPF (Diesel Particulate Filter) is

used to reduce soot emissions (also called Particulate Matter or PM).

• The DPF replaces the standard muffl er, and is located in

about the same place.

• The accumulated soot must be removed (burned)

approximately every 15 to 20 hours, in a process called “Regeneration”. The actual time depends on operating conditions.

• Kubota recommends Automatic Regeneration, if the

equipment is used outdoors and in a non combustible environment.

• The engine RPM must be raised to enable regeneration

(until the “raise RPM” lamp goes off).

• Regeneration takes about 20 minutes.

• If the operator does not enable regeneration in due

time, a dealer service call may be necessary.

• When regeneration is underway, a small amount of

white smoke may be observed emitting from the exhaust pipe.

• During regeneration, the exhaust temperature will rise. Therefore, regeneration should only take place when the machine is in a non combustible area and

The Kubota Dealer’s Role

Kubota has produced a series of operational brochures in both English and Spanish (tractors only).

These are available from the Kubota Fulfi llment Center. It is the Kubota dealer’s obligation to provide this brochure during product delivery and explain the emissions control system and its operation.

Every Operator’s Manual also has detailed information, and each tractor or construction machine has a decal to alert operators.

e! Est e trac

tor está equipado con un F

iltr o de P ar tíc ulas D iésel (F AP ) e, en un ár ea no c ombustible , pr esione el bot ón A UT O e! Est e trac

tor está equipado con un F

iltr o de P ar tíc ulas D iésel (F AP ) (se iluminar á) tiv a, y los indicador es se encienden in ter mit en temen te , siga la siguien te g ráfi ca Si v e o escucha Haga est o Resultado Y Pr esione el bot ón (se ilumina) Aumen te RP M

hasta que se apague

Per manec e enc endido hasta completar la REGEN. Y Estaciónese afuer a • F reno de estacionamien to ac tiv ado • Toma de fuer za (PT O) apagado • A celer ador en mar cha mínima • I nv ersor en neutr al  P resione el bot ón, luego , las RP M aumen tan aut omá ticamen te hasta completar la REGEN. ac tiv ado • Toma de fuer za (PT O) apagado • A celer ador Bip _Bip Recordatorios de op eración: Active o permita la R

egeneración FAP solamen te

en áreas no combustibles y al air e libre. en áreas no combustibles y al air

e libre.

Botón A

uto Presiónelo inmedia

tamente después de poner el motor en mar

cha. Asegúrese de que esté encendido en t

odo momento, a menos que desee det

ener la REGEN .

Lámpara indic

adora de

aumento de RPM del mot

or

Si se enciende in termitentemen

te,

aumente RPM hasta que se apague .

Botón de REGEN en p

osición

de parado

Presione solamen

te si estas dos lámpar as

se encienden in termitentemen

te

Para un aire más limpio Tier 4 y Tier 4 interim Soluciones para el contr

ol de emisiones (tractores L60, M60, M100G X - M135GX) Es automático... ón La tecnología Kubota pr otege el medioambient e. Imp ortan t! This C onstr uction M achine is equipp ed with a D iesel P articula te F ilter (DPF) • Allo w or ac tivat e DPF R egener ation (REGEN) only in

non-combustible ar eas and out

doors

.

• A beep will sound when REGEN is in pr ocess or needed; an E c ode ma y also displa y in hour met er panel . If you see Do this Result 1 ON Oper ate nor mally ON un til REGEN is complet e. ON AND ON EITHER OR BO TH FLASHING Raise RP M un til OFF – Oper ate nor mally Inhibit swit ch lamp fl ashing (loca ted lef t side of oper ator sta tion) AND FLASHING Turn swit ch

OFF(lamp will go OFF

) Raise RP M un til OFF Oper ate nor mally Operational Reminders: Activate or allo w DPF R egener ation only in non-combustible ar

eas and out doors_. Indicator L_{amps and S}

witch— What do the y do? DPF REGEN Indic ator La mp (on pa_nel) Lights up whenev er REGEN is _{needed or in pr} ocess (unless _aut o DPF REGEN is disabled).

Raise Engine RPM Indic ator La_{mp (on} panel)

Raise RP M until it goes off

.

REGEN inhibit swit

ch (lef_{t side of seat)}

Lamp OFF

Auto DPF REGEN is enabled . Lamp ON

Auto DPF REGEN disabled . _{Lamp FL} ASHING _{DPF REGEN is nec} essary—tur_{n swit} ch OFF .

The Way to Cleaner A ir Tier 4 and Interim _{Tier 4} Emissions C ontrol Solutions ( SVL75‐2, SVL90‐2, KX040‐4, KX057‐4, KX080‐4, U55‐4) Kubota’s Technology protects the environment_. It’s under y 330426_Kubota flyer_SVL90-2_R4.indd 1 Es automático... Kubota’s Technology protects Impor tant! This trac

tor is equipped with a D

iesel P ar tic ula te F ilt er (DPF) • If tr ac

tor is being used out

doors

, and in a

non-combustible ar

ea, push the A

UT O butt on Impor tant! This trac

tor is equipped with a D

iesel P ar tic ula te F ilt er (DPF) (will ligh t up ) • If A UT O oper ation w as not ac tiv at ed , and indica tors fl ash, f ollo w char t belo w If y ou see/hear Do this Result 1 OR AND Push butt on (ligh ts up ) R aise RP M un til off Push butt on (ligh ts up ) R aise RP M un til off Sta ys ON un til REGEN is c omplet e. 2 AND Par k outside • P ar king br ake ON • PT O OFF • Thr ottle a t idle • Shuttle in neutr al  P ush butt on, then RP M aut oma tically incr eases un til REGEN is c omplet e. PT O OFF • Shuttle in neutr al Beep Beep Operational Reminders: Activate or allow DPF Regeneration only in non-combustible areas and outdoors.

Auto Button Press immediately after starting the en-gine. Make sure it is lit at all times, unless you want to stop REGEN.

Raise Engine RPM Indicator

Lamp

If this fl ashes, raise RPM until it goes off .

Parked REGEN Button Press only if these two lamps are fl ashing

And ensure the following:

1. Park outdoors in a safe, noncombustible location

2. Parking brake ON 3. PTO Off

4. Throttle lever in idle position 5. Shuttle in neutral

• The REGEN process will take 20 ~ 40 minutes.

• The system will automatically adjust

engine speed.

• When REGEN is complete, all indicator

lamps will go off .

The Way to Cleaner Air

Tier 4 and Interim Tier 4

Emissions Control Solutions (L60, M60, M100GX ‐ M135GX tractors)

Kubota’s Technology protects the environment.

It’s automatic... It’s automatic...

Just push the button (see back panel for details)

©2013 Kubota Tractor Corporation TRDPF2013

Warranty

Kubota provides all customers a 5 year/3000 hour (whichever occurs fi rst) warranty on certain emissions control system components, such as the CRS, EGR, and DPF. It is important to note that DPFs which cannot be regenerated due to operator misunderstanding, are not warrantable .

Therefore, it is critical that both the dealer and Kubota customer review and understand the DPF operating procedures before delivery of the equipment to the fi nal customer.

Dealer Support

Kubota maintains fully staffed training and service departments to support our dealers. Our mission is to provide maximum reliability for our customers, by training our dealers in the proper diagnosis and repair of emissions control and other systems. This effort includes:

• Annual classes at Kubota Training Centers.

• Online courses from Kubota University.

• Expert advice through the Kubota Tech Center.

• Publications to help customers understand the new

Kubota Corporation was established in 1890, and has been forward-thinking ever since.

With companies and affi liates in more than 130 countries, Kubota Corporation based in Osaka, Japan, has become an international brand leader in a variety of products; full-size, sub-compact and compact tractors, gasoline and diesel engines, construction machinery, pipes, valves, pumps, and air-conditioning equipment.

Kubota introduced the L200, the fi rst compact tractor with big tractor features, to the United States market in 1969. Based on the enthusiastic response to this innovative product, Kubota’s commitment to the United States market has been on a steep growth curve since that time, with Kubota USA affi liates now including research, manufacturing, distribution, credit and insurance operations - all developed to better serve Kubota dealers and customers.

Kubota Tractor Corporation, with headquarters in California, has four division offi ces providing sales, marketing,

distribution, fi nance, service and parts support for Kubota dealers in their respective areas.

Today, you can fi nd Kubota products hard at work mowing, gardening, landscaping, farming, hauling, towing and transporting across America.

The Kubota Promise

• Produce state-of-the art, quality products

• Lead the industry in engineering and technological fi rsts

• Respect the environment and protect our customers’ safety

• Provide uncompromising service

• Listen and respond to customer needs

• Value each customer relationship with integrity and respect

• Support professional dealers

• Manage with vision and leadership

Every Operator Must Remember

Kubota recommends Auto Regeneration, if the machine is

operated outdoors and in a non combustible environment.

• Use only Ultra Low Sulfur Diesel Fuel.

•

ST

art engine

• R

aise RPM until lamp goes OFF

Note: Inhibit switch should be OFF, when operating outdoors and in non-combustible environment.

For Tractors with Auto Button, remember

STAR

For Machines without Auto Button

•

ST

art engine

•

Press

A

uto button-will light up

(when operating outdoors and in non-combustible environment)