Kubota D1803-CR-TIE4 User manual

MODELS
1ABACCJAP0070 1ABAHABAP0070 1ABADBMAP0230
V2607-CR-TIE4
V3307-CR-TIE4
V3800-CR-TIE4D1803-CR-TIE4
V2403-CR-TIE4
OPERATOR'S MANUAL
READ AND SAVE THIS BOOK
KUBOTA
DIESEL ENGINE
1J778-8915-6

California Proposition 65
Engine exhaust, some of its constituents,
certain vehicle components and fluids,
contain or emit chemicals known to the
State of California to cause cancer and birth
defects or other reproductive harm.
WARNING
D1803-CR-TIE4/V2403-CR-TIE4
V2607-CR-TIE4/V3307-CR-TIE4
V3800-TIE4
AU. E. 4-6. 6. K
1604-0252

ENGLISH
You are now the proud owner of a KUBOTA Engine. This engine is a
product of KUBOTA quality engineering and manufacturing. It is made
of fine materials and under a rigid quality control system. It will give
you long, satisfactory service. To obtain the best use of your engine,
please read this manual carefully. It will help you become familiar with
the operation of the engine and contains many helpful hints about
engine maintenance. It is KUBOTA's policy to utilize as quickly as
possible every advance in our research. The immediate use of new
techniques in the manufacture of products may cause some small
parts of this manual to be outdated. KUBOTA distributors and dealers
will have the most up-to-date information. Please do not hesitate to
consult with them.
This Operator's Manual should be considered a permanent part of the
engine and should remain with the engine when it is resold.
This symbol, the industry's "Safety Alert Symbol", is used throughout
this manual and on labels on the machine itself to warn of the
possibility of personal injury. Read these instructions carefully. It is
essential that you read the instructions and safety regulations before
you attempt to assemble or use this unit.
DANGER : Indicates an imminently hazardous situation which,
if not avoided, will result in death or serious
injury.
WARNING : Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious
injury.
CAUTION : Indicates a potentially hazardous situation which,
if not avoided, could result in minor or moderate
injury.
IMPORTANT : Indicates that equipment or property damage
could result if instructions are not followed.
NOTE : Gives helpful information.
FOREWORD
SAFETY FIRST
Engine FOREWORD(E).fm 1 ページ ２０１４年９月１１日 木曜日 午後５時４９分

CONTENTS
ENGLISH
SAFE OPERATION ..................................................................................................1
SERVICING OF THE ENGINE ....................................................................................1
NAMES OF PARTS .....................................................................................................2
PRE-OPERATION CHECK..........................................................................................5
BREAK-IN.................................................................................................................5
DAILY CHECK..........................................................................................................5
OPERATING THE ENGINE .........................................................................................6
STARTING THE ENGINE (NORMAL)......................................................................6
COLD WEATHER STARTING .................................................................................7
STOPPING THE ENGINE ........................................................................................7
CHECKS DURING OPERATION .............................................................................7
Radiator cooling water (Coolant)...................................................................................... 7
Oil pressure lamp ............................................................................................................. 8
Charge lamp.....................................................................................................................8
Fuel .................................................................................................................................. 8
Color of exhaust ............................................................................................................... 8
Immediately stop the engine if;......................................................................................... 8
AIR FLOW SENSOR ................................................................................................8
Air cleaner-mounted type ................................................................................................. 8
Inlet hose pipe-mounted type ........................................................................................... 8
PRECAUTIONS ON GENERATOR-EQUIPPED ENGINE .......................................8
MAINTENANCE ...........................................................................................................9
SERVICE INTERVALS...........................................................................................10
DAILY CHECKS .....................................................................................................14
Checking of engine oil level............................................................................................ 14
Checking of fuel level ..................................................................................................... 15
Checking of coolant level ............................................................................................... 16
Anti-freeze ...................................................................................................................... 17
Checking of fan belt........................................................................................................ 18
REGULAR CHECKS AND MAINTENANCE WORK..................................................19
EVERY 50 SERVICE HOURS................................................................................19
Checking of fuel pipes and clamp bands........................................................................ 19
Draining of water separator ............................................................................................ 19
EVERY 100 SERVICE HOURS..............................................................................20
Cleaning of air cleaner element...................................................................................... 20
Adjustment of fan belt tension ........................................................................................ 20
EVERY 200 SERVICE HOURS..............................................................................21
Checking of radiator hoses and clamp bands ................................................................ 21
Checking of intake air line .............................................................................................. 21
EVERY 250 SERVICE HOURS..............................................................................21
Checking of radiator hoses and clamp bands ................................................................ 21
Precaution at overheating .............................................................................................. 21
Cleaning of air cleaner element...................................................................................... 21
Adjustment of fan belt tension ........................................................................................ 22
Checking of intake air line .............................................................................................. 23
EVERY 400 SERVICE HOURS..............................................................................23
Changing of engine oil.................................................................................................... 23
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CONTENTS
ENGLISH
Replacement of oil filter cartridge ................................................................................... 23
Replacement of fuel filter cartridge................................................................................. 24
EVERY 500 SERVICE HOURS..............................................................................24
Changing of engine oil.................................................................................................... 24
Replacement of oil filter cartridge ................................................................................... 24
Replacement of fuel filter cartridge................................................................................. 25
Cleaning of water separator ........................................................................................... 25
Removal of sediment in fuel tank ................................................................................... 25
Cleaning of water jacket (radiator interior) ..................................................................... 25
Replacement of fan belt ................................................................................................. 25
EVERY 800 SERVICE HOURS..............................................................................25
Checking of valve clearance .......................................................................................... 25
EVERY 1000 SERVICE HOURS............................................................................25
Checking of valve clearance .......................................................................................... 25
EVERY 1500 SERVICE HOURS............................................................................26
Checking of injector tip ................................................................................................... 26
Checking of EGR cooler................................................................................................. 26
Changing of oil separator element ................................................................................. 26
Checking of PCV valve (Positive Crankcase Ventilation valve) ..................................... 26
EVERY 3000 SERVICE HOURS............................................................................26
Checking of turbo-charger .............................................................................................. 26
Checking of EGR System............................................................................................... 26
ANNUAL SERVICING ............................................................................................27
Replacement of air cleaner element............................................................................... 27
Checking of EGR piping ................................................................................................. 27
Checking of intake air line .............................................................................................. 27
Checking of exhaust manifold for cracks or gas leak and for looseness or damage .... 27
BIENNIAL SERVICING ..........................................................................................27
Replacement of rubber piping related oil separator ....................................................... 27
Replacement of intake air line and suction air pressure takeout rubber piping.............. 27
Replacement of boost sensor pressure rubber piping.................................................... 27
Replacement of EGR cooler rubber piping..................................................................... 27
Replacement of water rubber piping .............................................................................. 27
Replacement of lubricant rubber piping.......................................................................... 27
Changing of radiator coolant (L.L.C.) ............................................................................. 27
Remedies for quick decrease of coolant ........................................................................ 28
Replacement of radiator hoses and clamp bands .......................................................... 28
Replacement of fuel pipes and clamp bands ................................................................. 28
Replacement of intake air line ........................................................................................ 28
Replacement of fan belt ................................................................................................ 28
CARRIAGE AND STORAGE .....................................................................................29
CARRIAGE .............................................................................................................29
STORAGE ..............................................................................................................29
TROUBLESHOOTING ...............................................................................................30
SPECIFICATIONS .....................................................................................................32
1J778-8915_E.book 2 ページ ２０１６年６月２０日 月曜日 午後５時７分

1SAFE OPERATION
ENGLISH
SAFE OPERATION
Careful operation is your best assurance against an accident. Read and understand this
section carefully before operating the engine. All operators, no matter how much
experience they may have, should read this and other related manuals before operating
the engine or any equipment attached to it. It is the owner's obligation to provide all
operators with this information and instruct them on safe operation.
Be sure to observe the following for safe operation.
1.OBSERVE SAFETY INSTRUCTIONS
ARead and understand carefully this "OPERATOR'S
MANUAL" and "LABELS ON THE ENGINE" before
attempting to start and operate the engine.
ALearn how to operate and work safely. Know your
equipment and its limitations. Always keep the engine in
good condition.
ABefore allowing other people to use your engine, explain
how to operate and have them read this manual before
operation.
ADO NOT modify the engine. UNAUTHORIZED
MODIFICATIONS to the engine may impair the function
and/or safety and affect engine life. If the engine does not
perform properly, consult your local Kubota Engine
Distributor first.
2. WEAR SAFE CLOTHING AND PERSONAL PROTECTIVE EQUIPMENT (PPE)
ADO NOT wear loose, torn or bulky clothing around the
machine that may catch on working controls and
projections or into fans, pulleys and other moving parts
causing personal injury.
AUse additional safety items-PPE, e.g. hard hat, safety
protection, safety goggles, gloves, etc., as appropriate or
required.
ADO NOT operate the machine or any equipment attached
to it while under the influence of alcohol, medication, or
other drugs, or while fatigued.
ADO NOT wear radio or music headphones while
operating the engine.
1J778-8915_E.book 1 ページ ２０１６年６月２０日 月曜日 午後５時７分

SAFE OPERATION2
ENGLISH
3. CHECK BEFORE STARTING & OPERATING THE ENGINE
ABe sure to inspect the engine before operation. Do not
operate the engine if there is something wrong with it.
Repair it immediately.
AEnsure all guards and shields are in place before
operating the engine. Replace any that are damaged or
missing.
ACheck to see that you and others are a safe distance
from the engine before starting.
AAlways keep the engine at least 3 feet (1 meter) away
from buildings and other facilities.
ADO NOT allow children or livestock to approach the
machine while the engine is running.
ADO NOT start the engine by shorting across starter
terminals. The machine may start in gear and move. Do
not bypass or defeat any safety devices.
4. KEEP THE ENGINE AND SURROUNDINGS CLEAN
ABe sure to stop the engine before cleaning.
AKeep the engine clean and free of accumulated dirt,
grease and trash to avoid a fire. Store flammable fluids in
proper containers and cabinets away from sparks and
heat.
ACheck for and repair leaks immediately.
ADO NOT stop the engine without idling; Allow the engine
to cool down, first. Keep the engine idling for about 5
minutes before stopping unless there is a safety problem
that requires immediate shut down.
5. SAFE HANDLING OF FUEL AND LUBRICANTS -KEEP AWAY FROM FIRE
AAlways stop the engine before refueling and/or
lubricating.
ADO NOT smoke or allow flames or sparks in your work
area. Fuel is extremely flammable and explosive under
certain conditions.
ARefuel at a well ventilated and open place. When fuel
and/or lubricants are spilled, refuel after letting the
engine cool down.
ADO NOT mix gasoline or alcohol with diesel fuel. The
mixture can cause a fire or severe engine damage.
ADo not use unapproved containers e.g. buckets, bottles,
jars. Use approved fuel storage containers and
dispensers.
1J778-8915_E.book 2 ページ ２０１６年６月２０日 月曜日 午後５時７分

3SAFE OPERATION
ENGLISH
6. EXHAUST GASES & FIRE PREVENTION
AEngine exhaust fumes can be very harmful if allowed to
accumulate. Be sure to run the engine in a well ventilated
location and where there are no people or livestock near
the engine.
AThe exhaust gas from the muffler is very hot. To prevent
a fire, do not expose dry grass, mowed grass, oil or any
other combustible materials to exhaust gas. Keep the
engine and muffler clean at all times.
ATo avoid a fire, be alert for leaks of flammable
substances from hoses and lines. Be sure to check for
leaks from hoses or pipes, such as fuel and hydraulic
fluid by following the maintenance check list.
ATo avoid a fire, do not short across power cables and
wires. Check to see that all power cables and wirings are
in good condition. Keep all electrical connections clean.
Bare wire or frayed insulation can cause a dangerous
electrical shock and personal injury.
7. ESCAPING FLUID
ARelieve all pressure in the air, the oil and the cooling
systems before disconnecting any lines, fittings or
related items.
ARelieve all pressure in any system before disconnecting
any lines, fittings, or related items.
DO NOT check for pressure leaks with your hand. High
pressure oil or fuel can cause personal injury.
AEscaping fluid under pressure has sufficient force to
penetrate skin causing serious personal injury.
AFluid escaping from pinholes may be invisible. Use a
piece of cardboard or wood to search for suspected
leaks: do not use hands and body. Use safety goggles or
other eye protection when checking for leaks.
AIf injured by escaping fluid, see a medical doctor
immediately. This fluid can produce gangrene or severe
allergic reaction.
1J778-8915_E.book 3 ページ ２０１６年６月２０日 月曜日 午後５時７分

SAFE OPERATION4
ENGLISH
8. CAUTIONS AGAINST BURNS & BATTERY EXPLOSION
ATo avoid burns, be cautious of hot components, e.g.,
exhaust piping, turbo-charger, EGR system, radiator,
hoses, engine body, coolants, engine oil, etc. during
operation and after the engine has been shut off.
ADO NOT remove the radiator cap while the engine is
running or immediately after stopping. Otherwise hot
water will spout out from the radiator. Wait until the
radiator is completely cool to the touch before removing
the cap. Wear safety goggles.
ABe sure to close the coolant drain valve, secure the
pressure cap, and fasten the pipe band before operating.
If these parts are taken off, or loosened, it will result in
serious personal injury.
AThe battery presents an explosive hazard. When the
battery is being charged, hydrogen and oxygen gases
are extremely explosive.
ADO NOT use or charge the battery if its fluid level is below
the LOWER mark.
Otherwise, the component parts may deteriorate earlier
than expected, which may shorten the service life or
cause an explosion. Immediately, add distilled water until
the fluid level is between the UPPER and LOWER marks.
AKeep sparks and open flames away from the battery,
especially during charging. DO NOT strike a match near
the battery.
ADO NOT check the battery charge by placing a metal
object across the terminals. Use a voltmeter or
hydrometer.
ADO NOT charge a frozen battery. There is a risk of
explosion. When frozen, warm the battery up to at least
16 C (61 F).
9. KEEP HANDS AND BODY AWAY FROM ROTATING PARTS
ABe sure to stop the engine before checking or adjusting
the belt tension and cooling fan.
AKeep your hands and body away from rotating parts,
such as the cooling fan, V-belt, fan drive pulley or
flywheel. Contact with rotating parts can cause severe
personal injury.
ADO NOT run the engine without safety guards. Install
safety guards securely before operation.
1J778-8915_E.book 4 ページ ２０１６年６月２０日 月曜日 午後５時７分

5SAFE OPERATION
ENGLISH
10. ANTI-FREEZE & DISPOSAL OF FLUIDS
A Anti-freeze is poisonous. If it is swallowed, seek immediate
medical help. Do NOT make a person throw up unless told
to do so by poison control or a health care professional. Use
standard first aid and CPR for signs of shock or cardiac
arrest. Call your local Poison Control Center or your local
emergency number for further assistance.
A Wear rubber gloves to avoid personal injury, when you treat
anti-freeze. In case of contact with skin, wash it off
immediately.
A DO NOT mix different types of Anti-freeze. The mixture can
produce a chemical reaction causing harmful substances.
Use approved or genuine KUBOTA Anti-freeze.
A Be mindful of the environment and the ecology. Before
draining any fluids, determine the correct way to dispose of
them. Observe the relevant environmental protection
regulations when disposing of oil, fuel, coolant, brake fluid,
filters and batteries.
A When draining fluids from the engine, place a suitable
container underneath the engine body.
A DO NOT pour waste onto the ground, down a drain, or into
any water source. Dispose of waste fluids according to
environmental regulations.
11. CONDUCTING SAFETY CHECKS & MAINTENANCE
AWhen inspecting the engine or servicing, place the
engine on a large flat surface. DO NOT work on anything
that is supported ONLY by lift jacks or a hoist. Always use
blocks or the correct stands to support the engine before
servicing.
ADisconnect the battery from the engine before
conducting service. Put a "DO NOT OPERATE!" tag on
the key switch to avoid accidental starting.
ATo avoid sparks from an accidental short circuit always
disconnect the battery's ground cable (-) first and
reconnect it last.
ABe sure to stop the engine and remove the key when
conducting daily and periodic maintenance, service and
cleaning.
ACheck or conduct maintenance after the engine, coolant,
muffler, or muffler cover have cooled off completely.
AAlways use the appropriate tools and fixtures. Verify that
they are in good condition before performing any service
work. Make sure you understand how to use them before
service.
AUse ONLY correct engine barring techniques for
manually rotating the engine. DO NOT attempt to rotate
the engine by pulling or prying on the cooling fan and V-
belt. This practice can cause serious personal injury or
premature damage to the cooling fan and belt.
1J778-8915_E.book 5 ページ ２０１６年６月２０日 月曜日 午後５時７分

SAFE OPERATION6
ENGLISH
1. Keep warning and caution labels clean and free from obstructing material.
2. Clean warning and caution labels with soap and water, dry with a soft cloth.
3. Replace damaged or missing warning and caution labels with new labels from your local
KUBOTA Dealer.
4. If a component with warning and caution label(s) affixed is replaced with a new part, make
sure the new label(s) is (are) attached in the same location(s) as the replaced component.
5. Mount new warning and caution labels by applying to a clean dry surface and pressing any
bubbles to the outside edge.
AReplace fuel pipes and lubricant pipes with their hose
clamps every 2 years or earlier whether they are
damaged or not. They are made of rubber and age
gradually.
AKeep a first aid kit and appropriate type fire extinguisher
handy at all times.
12. WARNING AND CAUTION LABELS
Part No.19077-8724-1 or 16667-8724-1
(55mm in diameter) (37mm in diameter)
Part No.TA040-4957-1
Do not get your hands close
to engine fan and fan belt.
13. CARE OF WARNING AND CAUTION LABELS
1J778-8915_E.book 6 ページ ２０１６年６月２０日 月曜日 午後５時７分

1SERVICING OF THE ENGINE
ENGLISH
SERVICING OF THE ENGINE
Your dealer is interested in your new engine and has the
desire to help you get the most value from it. After reading
this manual thoroughly, you will find that you can do some
of the regular maintenance yourself.
However, when in need of parts or major service, be sure
to see your KUBOTA Dealer.
For service, contact the KUBOTA Dealership from which
you purchased your engine or your local KUBOTA
Dealer.
When in need of parts, be prepared to give your dealer
the engine serial number.
Locate the serial number now and record them in the
space provided.
[D1803-CR-TIE4, V2403-CR-TIE4]
[V2607-CR-TIE4, V3307-CR-TIE4]
[V3800-TIE4]
Type Serial No.
Engine
Date of Purchase
Name of Dealer
(To be filled in by purchaser)
(1) Engine serial number
(1) Engine serial number
(1) Engine serial number
1J778-8915_E.book 1 ページ ２０１６年６月２０日 月曜日 午後５時７分

2 NAMES OF PARTS
ENGLISH
NAMES OF PARTS
[D1803-CR-TIE4, V2403-CR-TIE4]
A(24) ECU (Engine Control Unit) is not connected to the engine in the figure above.
(1) EGR valve
(2) Supply pump
(3) Oil filler plug
(4) Engine hook
(5) Rail
(6) Cooling fan
(7) Fan belt
(8) Fan drive pulley
(9) Oil filter cartridge
(10) Oil drain plug
(11) Oil level gauge
(12) Intake manifold
(13) Oil separator
(14) Alternator
(15) Exhaust manifold
(16) Turbo-charger
(17) DOC (Diesel Oxidation Catalyst)
(18) EGR pipe
(19) Flywheel
(20) Oil pan
(21) Starter
(22) EGR cooler
(23) Oil pressure switch
(24) ECU (Engine Control Unit)
1J778-8915_E.book 2 ページ ２０１６年６月２０日 月曜日 午後５時７分

3NAMES OF PARTS
ENGLISH
[V2607-CR-TIE4, V3307-CR-TIE4]
A(30) ECU (Engine Control Unit) is not connected to the engine in the figure above.
(1) EGR valve
(2) Oil separator
(3) Intake manifold
(4) Glow plug
(5) Fuel filter cartridge
(6) Injector
(7) Oil filler plug
(8) Cooling fan
(9) Fan drive pulley
(10) Fan belt
(11) Oil drain plug
(12) Oil filter cartridge
(13) Alternator
(14) Oil pressure switch
(15) Starter
(16) Oil level gauge
(17) Supply pump
(18) NE sensor
(19) Rail
(20) Head cover
(21) Engine hook
(22) Turbo-charger
(23) EGR cooler
(24) Boost sensor
(25) DOC (Diesel Oxidation Catalyst)
(26) Flywheel
(27) Oil pan
(28) G sensor
(29) Exhaust manifold
(30) ECU (Engine Control Unit)
1J778-8915_E.book 3 ページ ２０１６年６月２０日 月曜日 午後５時７分

4 NAMES OF PARTS
ENGLISH
[V3800-TIE4]
A(28) ECU (Engine Control Unit) is not connected to the engine in the figure above.
(1) EGR pipe
(2) EGR valve
(3) Intake air throttle
(4) Intake air heater
(5) Intake manifold
(6) Oil filler plug
(7) Cooling fan
(8) Fan belt
(9) Supply pump
(10) Fan drive pulley
(11) Oil drain plug
(12) Oil level gauge
(13) Oil filter cartridge
(14) Coolant drain cock
(15) Rail
(16) Alternator
(17) Engine hook
(18) Turbo-charger
(19) Exhaust manifold
(20) DOC (Diesel Oxidation Catalyst)
(21) Flywheel
(22) EGR cooler
(23) Starter
(24) Oil pan
(25) PCV valve (Positive Crankcase Ventilation valve)
(26) Oil separator
(27) Oil pressure switch
(28) ECU (Engine Control Unit)
1J778-8915_E.book 4 ページ ２０１６年６月２０日 月曜日 午後５時７分

5PRE-OPERATION CHECK
ENGLISH
PRE-OPERATION CHECK
BREAK-IN
During the engine break-in period, observe the following by all means:
1. Change engine oil and oil filter cartridge after the first 50 hours of operation. (See "Changing of engine oil" and
"Replacement of oil filter cartridge" in "EVERY 400 SERVICE HOURS" (D1803-CR-TIE4, V2403-CR-TIE4) or "EVERY
500 SERVICE HOURS" (V2607-CR-TIE4, V3307-CR-TIE4, V3800-TIE4) in "REGULAR CHECKS AND
MAINTENANCE WORK" section.)
2. When ambient temperature is low, operate the machine after the engine has been completely warmed up.
DAILY CHECK
To prevent trouble from occurring, it is important to know the conditions of the engine well. Check it before starting.
To avoid personal injury or death:
ABe sure to install shields and safeguards attached to the engine when operating.
AStop the engine at a flat and wide space when checking.
AKeep dust or fuel away from the battery, wiring, muffler and engine to prevent a fire.
Check and clear them before operating everyday. Pay attention to the heat of the
exhaust pipe or exhaust gas so that it can not ignite trash.
Item Ref. page
1. Parts which had trouble in previous operation -
2. By walking around the machine (1) Oil or water leaks 21, 21
(2) Engine oil level and contamination 14
(3) Amount of fuel 15
(4) Amount of coolant 16 to 17
(5) Dust in air cleaner dust cup 20, 21
(6) Damaged parts and loosened bolts and nuts -
3. By inserting the key into the starter
switch
(1) Proper functions of meters and pilot lamps; no stains on
these parts -
4. By starting the engine (1) Color of exhaust fumes 8
(2) Unusual engine noise 8
(3) Engine start-up condition 7
(4) Slow-down and acceleration behavior 8
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6 OPERATING THE ENGINE
ENGLISH
OPERATING THE ENGINE
STARTING THE ENGINE (NORMAL)
To avoid personal injury or death:
ADo not allow children to approach the
machine while the engine is running.
ABe sure to install the machine on
which the engine is installed, on a flat
place.
ADo not run the engine on gradients.
ADo not run the engine in an enclosed
area. Exhaust gas can cause air
pollution and exhaust gas poisoning.
AKeep your hands away from rotating
parts (such as fan, pulley, belt,
flywheel etc.) during operation.
ADo not operate the machine while
under the influence of alcohol or
drugs.
ADo not wear loose, torn or bulky
clothing around the machine. It may
catch on moving parts or controls,
leading to the risk of accident. Use
additional safety items, e.g. hard hat,
safety boots or shoes, eye and
hearing protection, gloves, etc., as
appropriate or required.
ADo not wear radio or music
headphones while operating engine.
ACheck to see if it is safe around the
engine before starting.
AReinstall safeguards and shields
securely and clear all maintenance
tools when starting the engine after
maintenance.
ADo not use ether or any starting fluid for starting the
engine, or a severe damage will occur.
AWhen starting the engine after a long storage (of more
than 3 months), activate the starter for about 10
seconds to allow oil to reach every engine part.
AIf the oil pressure lamp stays on after the engine starts
and runs, shut the engine off immediately and check
the following:
- if there is enough engine oil.
- if the engine oil has dirt in it.
- if the wiring is faulty.
If the oil pressure lamp continues to stay on and is not
resolved by checking these items, contact your local
KUBOTA Dealer for service.
1. Set the fuel shutoff-valve to the "ON"
(OPEN) position.
2. Insert the key into the key switch.
3. Turn the key to the "ON" position and
hold it until the heater indicator turns off.
(1) Heater indicator (A) "OFF" SWITCHED OFF
(B) "ON" OPERATION
(C) "ST" STARTING
4. Turn the key to the "ST" (STARTING)
position and the engine should start.
Release the key immediately when the
engine starts.
5. Check to see that the oil pressure lamp
and charge lamp are off. If the lamps
are still on, immediately stop the
engine, and determine the cause.
(See "CHECKS DURING OPERATION" in
"OPERATING THE ENGINE" section.)
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7OPERATING THE ENGINE
ENGLISH
AIf the engine does not catch or start at 10 seconds
after the starter switch is set at "ST" (STARTING)
position, wait for another 30 seconds and then begin
the engine starting sequence again. Do not allow the
starter motor to run continuously for more than 20
seconds.
COLD WEATHER STARTING
If the ambient temperature is below -5 C(23 F) and the
engine is very cold, start it in the following manner:
Take steps (1) through (2) above.
Heater indicator comes on when the key is turned to the
"ON" position and engine coolant temperature is below
0 C (32 F), and goes off automatically when preheat is
completed.
ADo not allow the starter motor to run continuously for
more than 20 seconds.
ABe sure to warm up the engine, not only in winter, but
also in warmer seasons. An insufficiently warmed-up
engine can shorten its service life.
AWhen the ambient temperature is expected to be
below -15 C (5 F), remove the battery from the
machine and move it to a warmer or heated and safe
indoor location. Reinstall the battery in the machine
just prior to the next machine usage. Do not store the
battery in living areas. Please observe Cautions
under section 8. in "SAFE OPERATION" of this
manual when working on or handling the battery or
personal injury and property damage may occur.
STOPPING THE ENGINE
AAllow the engine to idle for 5 minutes before shutting
it off after a full load operation.
Failure to do so may lead to turbo-charger trouble.
CHECKS DURING OPERATION
While running, make the following checks to see that all
parts are working correctly.
BRadiator cooling water (Coolant)
To avoid personal injury or death:
ADo not remove radiator cap until
coolant temperature is well below its
boiling point. Then loosen cap
slightly to the stop position, to
relieve any pressure, before
removing cap completely.
CPrecaution at overheating
The event that the coolant temperature is nearly or more
than the boiling point is called "OVERHEATING".
While running, make the following checks to see that all
parts are working correctly. If anything is unusual,
inspect it, referring to the relevant description in
"MAINTENANCE" and "REGULAR CHECKS AND
MAINTENANCE WORK" section.
If the coolant temperature warning lamp lights up or if
steam or coolant does not stop squirting from the radiator
overflow pipe, turn off the load and keep the engine
idling (COOLING-DOWN) for at least 5 minutes to let it
cool down gradually. Then stop the engine and take the
following inspection and servicing.
1. Check to see if the coolant runs short or if there is any
coolant leak;
2. Check to see if there is any obstacle around the
cooling air inlet or outlet;
3. Check to see if there is any dirt or dust between
radiator fins and tube;
4. Check to see if the fan belt is too loose; and
5. Check to see if radiator water pipe is clogged.
6. Warm up the engine at medium speed
without load.
3. Turn the key to the "ON" position and
hold it until the heater indicator turns off.
4. Turn the key to the "ST" (STARTING)
position and the engine should start.
(If the engine fails to start after 10 seconds, turn off
the key for 30 seconds. Then repeat steps (3) and
(4).
1. Run the engine under idling conditions.
2. The engine should stop with the starter
switch placed at the "OFF" position.
3. After stopping the engine, remove the
key.
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OPERATING THE ENGINE8
ENGLISH
BOil pressure lamp
The lamp lights up to warn the operator that the engine oil
pressure has dropped below the prescribed level. If this
should happen during operation or should not go off even
after the engine is accelerated more than 1000rpm,
immediately stop the engine and check the following:
1. Engine oil level (See "Checking of engine oil level" in
"DAILY CHECKS" in "MAINTENANCE" section.)
BCharge lamp
The charge lamp lights up to warn the operator the battery
charge is low during running or there is no alternator
output during running. It is normal to have the charge
lamp on when the key is on and engine is not running.
If the charge lamp is on during running, check the
following:
1. Cable broken
2. Poor connection at alternator terminal
3. Fan belt too loose or damaged
BFuel
To avoid personal injury or death:
AFluid escaping from pinholes may be
invisible. Do not use hands to search
for suspected leaks; Use a piece of
cardboard or wood, instead. If
injured by escaping fluid, see a
medical doctor at once. This fluid can
produce gangrene or a severe
allergic reaction.
ACheck any leaks from fuel pipes. Use
eye, face and hand protection such
as gloves and any necessary
appropriate additional personal
protective equipment and clothing.
Do not run the fuel tank level too low or completely out of
fuel. You may experience improper engine running and/
or a DTC (Diagnostic Trouble Code) error code may be
recorded in the Engine Control. Additionally, fuel system
bleeding may be necessary if air enters the fuel system.
(See "Checking of fuel level" in "DAILY CHECKS" in
"MAINTENANCE" section.)
BColor of exhaust
White exhaust may come out. In most cases this is
caused by water vapor and not a problem. Such exhaust
disappears when the temperature rises up as specified.
BImmediately stop the engine if;
AThe engine suddenly slows down or accelerates.
AUnusual noises are suddenly heard.
AExhaust fumes suddenly become very dark.
AThe oil pressure lamp lights up.
AThe engine warning lamp lights up.
AContinuous large or abnormal quantities of white
smoke.
AIR FLOW SENSOR
BAir cleaner-mounted type
ADo not use any other air cleaner and element than
specified. Unspecified ones cause the air flow sensor
to malfunction and to lose its full performance.
BInlet hose pipe-mounted type
ABe careful not to install the air flow sensor on the pipe
in the wrong direction.
ADo not change the direction and insertion angle of the
hoses before and after the pipe. Wrong direction
causes the air flow sensor to malfunction and to lose
its full performance.
PRECAUTIONS ON GENERATOR-
EQUIPPED ENGINE
To avoid personal injury:
If the engine is kept running under no
load or light load (load factor below
30%), unburnt fuel or carbon builds up
in the exhaust system. As a result, the
engine may get damaged or cause a fire.
Run the engine under enough load at
regular intervals to remove unburnt fuel
and carbon deposits.
ABefore doing the load operation,
make sure there is nothing
flammable around the engine.
ADo not put a load all at once on the
engine, but gradually.
AIf by any chance, spark rises out of
the muffler outlet, DO NOT GET THE
ENGINE UNLOADED, BUT
INTERRUPT IT IMMEDIATELY.
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9MAINTENANCE
ENGLISH
MAINTENANCE
To avoid personal injury or death:
ABe sure to conduct daily checks,
periodic maintenance, refueling or
cleaning on a level surface with the
engine shut off and remove the key.
ABefore allowing other people to use
your engine, explain how to operate,
and have them read this manual
before operation.
AWhen cleaning any parts, do not use
gasoline but use regular cleanser.
AAlways use proper tools, that are in
good condition. Make sure you
understand how to use them, before
performing any service work.
AWhen installing, be sure to tighten all
bolts lest they should be loose.
Tighten the bolts by the specified
torque.
ADo not put any tools on the battery,
or battery terminals may short out.
Severe burns or fire could result.
Detach the battery from the engine
before maintenance.
ADo not touch muffler or exhaust
pipes while they are hot; Severe
burns could result.
AA repair shop or person of the owner's choosing may maintain, replace, or repair emission-control devices and
systems. However, warranty service must be performed by an authorized KUBOTA service facility except in the case
of emergency.
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