TYM T390 User manual

TRACTORS
T390/T400/T430/T450
SERVICE MANUAL
Chapter 1. Introduction ------------------------------------01
Chapter 2. Disassembly and reassembly of major point ------02
Chapter 3. Engine accessories ------------------------------------03
Chapter 4. Clutch system ------------------------------------------- 04
Chapter 5. Transmission ------------------------------------05
Chapter 6. Front axle (4WD) ----------------------------------06
Chapter 6. Front axle (sheet metal) ---------------------------06
Chapter 7. Rear axle and Brakes ----------------------------------07
Chapter 8. Power steering system--------------------------------- 08
Chapter 9. Hydraulic system --------------------------------------09
Chapter 9. Hydraulic system(old version) -----------------------09
Chapter 10. Electric accessories and instruments -----------10
Chapter 11. Service standard and other information ---------11

Chapter 1
Introduction
INTRODUCTION-------------------------------------------------------------1-1
SAFETY INTRODUCTION------------------------------------------------1-2
WARNING SIGNS IN THIS MANUAL ---------------------------------1-5
SAFETY SIGNS --------------------------------------------------------------1-6
SAFETY DECALS ----------------------------------------------------------1-11
UNIVERSAL SYMBOLS --------------------------------------------------1-14
SECTION 1. TRACTOR TYPES AND PUNCHED
IDENTIFICATION MARKS ----------------------------1-15
SECTION 2. SPECIFICATIONS------------------------------------------1-17
SECTION 3. GEAR TRAIN DIAGRAMS-------------------------------1-20
SECTION 4. PRECAUTIONS FOR TRACTOR OPERATIONS---1-21
1. INSTRUMENTS -------------------------------------------------------1-21
2. CONTROLS ----------------------------------------------------------- 1-23
3. FILLING DIAGRAM AND CAPACITY TABLE---------------1-24
4. MAINTENANCE CHART -------------------------------------------1-25

Chapter 1 .Introduction
This tractor service manual is for qualified service personnel engaged in servicing
and overhauling 3510/4110/T390(T400)/T430(T450) tractor.Use of this publication
is not recommended for field operators since they usually do not have access to
special tools and shop equipment essential for most servicing.
Servicing procedures outlined herein contain sufficient information to return all
component parts of a tractor to new condition. In discussion of each component
parts,it is assumed that a complete overhaul is been performed,consequently,
complete disassembly and reassembly are outlined.The mechanic is relied upon to
decide how far disassembly must be carried when complete overhaul is not required.
Study unfamiliar service procedures thoroughly and clearly understood before
attempting disassembly. Specific data essential for proper overhaul,such as running
clearances and torque values,have been provided in interline of Inspection and
reassembly procedures of each group section.
This manual was compiled from latest information available at time of publication.
Manufacturer reserves the right to make changes at any time without notice.
Whenever the terms "left"and "right" are used, They means as viewed by the
operator when seated in the operator's seat.
1-1

SAFETY INSTRUCTION
ALWAYS PRACTICE SAFETY BY THINKING BEFORE ACTION
AVOID FIRE HAZARDS.
-Keep fire extinguishers easily available and in good operating condition.
All relevant personnel should know how to operate fire fighting equipment.
-Keep a first aid kit in an easily accessible location.
-Do not smoke while handling fuel,or other highly flammable material.
-Do not use an open pail for transporting fuel.
-Use of an approved fuel container.
-Dispose of all fuel-soaked rags in covered containers where cigarettes cannot be dropped
carelessly.
-Do not smoke and avoid open flame when charging,jumping,or boosting batteries.
-Batteries give off gas which is flammable and explosive.
-Do not charge batteries in a closed area. Provide proper ventilation to avoid explosion of
accumulated gases.
Avoid acid burns.
-Wear safety goggles when handling battery electrolyte.It contains sulfuric acid which is a
poison and can cause blindness.Avoid it contacting eyes,skin,or clothing. sulfuric acid will eat
through clothing and can cause severe burns to skin.
AVOID HIGH-PRESSURE FLUIDS
1) Before beginning work on hydraulic system components,turn off engine and operate
hydraulic control levers to relieve internal hydraulic pressure.
2) Oil under pressure can penetrate skin and lead to personal injury.Treat sources of oil
pressure with extreme care,wearing safety goggles.
3) If hydraulic leak develops,correct immediately.Escaping hydraulic oil can have extremely
high pressure. A stream of high pressure oil may easily penetrate skin just like modern needless
vaccination equipment,but with the exception that hydraulic fluid may cause blood poisoning.
It is imperative that connections are tight and that all lines and pipes should be in good condition.
If injured by escaping hydraulic fluid,see a doctor at once.
1-2

STAY CLEAR OF PTO
1) Entanglement in rotating drive line can cause serious injury or death.
2) Keep tractor master shield and drive line shield in place at all times except for special
applications as directed in the implement operator's manual.
3) Wear fairly tight tight fitting clothing.Stop the engine and be sure PTO driveline is stopped
before making adjustment,connections,or cleaning out PTO drive equipment.
SERVICE TIRES SAFELY
Tire changing can be dangerous and should be done by trained personnel using proper tools and
equipment.
Do not re-inflate a tire that has been run flat or seriously under-inflated.Have it checked by qualified
personnel.
Use wheel handling equipment adequate for weight involved when removing and installing wheels.
1-3

WARNING SIGNS IN THIS MANUAL
The following warning symbols in this manual draw additional attention to items of importance
for the safe and correct operation of the tractor.
Hazard or unsafe practice that can lead in injury
or death.
CAUTION
Instructions for the correct operation of the
machine which, if followed, will ensure that it
performs at it’s best
IMPORTANT
Hazard or unsafe practice that can lead to severe
injury or death.
WARNING
Serious hazard with a very high level of risk of
either serious injury or death
DANGER
MEANING OF SIGNSIGN
1-5

SAFETY SIGNS
RECOGNIZE SAFETY INFORMATION
This symbol, Safety-Alert Symbol, means ATTENTION!
YOUR SAFETY IS INVOLVED. The message that follows
the symbol contains important information about safety.
Carefully read the message
DANGER
WARNING
CAUTION
SIGNAL WORDS.
A signal word―DANGER, WARNING OR CAUTION―is
used with safety alert symbol. DANGER identifies the
most serious hazards. Safety signs with signal Word
―DANGER OR WARNING―are typically near specific
hazards. General precautions are listed on CAUTION
safety signs.
READ SAFETY INSTRUCTION
Carefully read all safety instructions given in this
manual for your safety. Tempering with any of the
safety devices can cause serious injuries or death. Keep
all safety signs in good condition. Replace missing or
damaged safety signs.
Keep your tractor in proper condition and do not allow
any unauthorized modifications to be carried out on the
Tractor, which may impair the function/safety and affect
Tractor life.
PROTECTION CHILDREN
Keep children and others away from the Tractor while
operating.
BEFORE YOU REVERSE
- Look behind Tractor for children.
- Do not let children to ride on Tractor or any
implement.
1-6

USE OF ROPS AND SEAT BELT
The Roll Over Protective Structure(ROPS) has been certified to
industry and/or government standards. Any damage or alternation to
the ROPS, mounting hard-ware, or seat belt voids the certification
and will reduce or eliminate protection for the operator in the event
of a roll-over. The ROPS, mounting hardware, and seat belt should
be checked after the first 100 hours of Tractor and every 500 hours
thereafter for any evidence of damage, wear or cracks. In the event
of damage or alteration, the ROPS must be replaced prior to further
operation of the Tractor.
The seat belt must be worn during machine operation when the
machine is equipped with a certified ROPS.
Failure to do so will reduce or eliminate protection for the operator
in the event of a roll over.
PRECAUTION TO AVOID TIPPING
Do not drive where the Tractor could slip or tip.
Stay alert for holes and rocks in the terrain, and other hidden
hazards.
Slow down before you make a sharp turn.
Driving forward out of a ditch or mired condition could cause
Tractor to tip over backward. Back out of these situations if
possible
PARK TRACTOR SAFELY
Before working on the Tractor ;
Lower all equipment to the ground.
Stop the engine and remove the key
KEEP RIDERS OFF TRACTOR
Do not allow riders on the Tractor.
Riders on Tractor are subject to injury such as being stuck by
foreign objects and being thrown off of the Tractor
1-7

HANDLE FUEL SAFELY-AVOID FIRES
Handle fuel with care; it is highly flammable. Do not refuel the
Tractor while smoking or near open flame or sparks.
Always stop engine before refueling Tractors.
Always keep your tractor clean of accumulated grease, and debris.
Always clean up spilled fuel.
STAY CLEAR OF ROTATING SHAFTS
Entanglement in rotating shaft can cause serious injury or death.
Keep PTO shield in place at all times.
Wear close fitting clothing. Stop the engine and be sure PTO drive
is stopped before making adjustments, connections, or cleaning out
PTO driven equipment.
ALWAYS USE SAFETY LIGHTS AND DEVICES
Use of hazard warning lights and turn signals are recommended
when towing equipment on public roads unless prohibited by state
or local regulations.
Use slow moving vehicle (SMV) sign when driving on public road
during both day & night time, unless prohibited by law
PRACTICE SAFE MAINTENANCE
Understand service procedure before doing work.
Keep the surrounding area of the Tractor clean and dry.
Do not attempt to service Tractor when it is in motion.
Keep body and clothing away from rotating shafts.
Always lower equipment to the ground. Stop the engine.
Remove the key. Allow Tractor to cool before any work repair is
caused on it.
Securely support any Tractor elements that must be raised for service
work.
Keep all parts in good condition and properly installed.
Replace worn or broken parts. Replace damage/missing decals.
Remove any buildup of grease or oil from the Tractor.
Disconnect battery ground cable(−) before making adjustments on
electrical systems or welding on Tractor
1-8

AVOID HIGH-PRESSURE FLUIDS
Escaping fluid under pressure can penetrate the skin causing
serious injury. Keep hands and body away from pinholes and
nozzles, which eject fluids under high pressure. If ANY fluid is
injected into the skin. Consult your doctor immediately.
PREVENT BATTERY EXPLOSIONS
Keep sparks, lighted matches, and open flame away from the
top of battery. Battery gas can explode.
Never check battery charge by placing a metal object across the
poles.
PREVENT ACID BURNS
Sulfuric acid in battery electrolyte is poisonous. It is strong enough to
burn skin, cause holes in clothing and cause blindness if found entry
into eyes.
For adequate safety always;
1. Fill batteries in a well-ventilated area.
2. Wear eye protection and acid proof hand gloves
3. Avoid breathing direct fumes when electrolyte is added.
4. Do not add water to electrolyte as it may splash off
causing severe burns.
If you spill acid on yourself;
1.Flush your skin with water.
2.Flush your eyes with water for 10-15 minutes.
Get medical attention immediately.
SERVICE TRACTOR SAFELY
Do not wear a necktie, scarf or loose clothing when you work near
moving parts. If these items were to get caught, severe injury could
result.
Remove rings and other jeweler to prevent electrical shorts and
entanglement in moving parts.
WORK IN VENTILATED AREA
Do not start the Tractor in an enclosed building unless the doors &
windows are open for proper ventilation, as tractor fumes can cause
sickness or death. If it is necessary to run an engine in an enclosed area
remove the exhaust fumes by connecting exhaust pipe extension.
1-9

Safety Starter Switch is to be replaced after every 2000 hours/4 years,
whichever is earlier
TRACTOR RUNAWAY
1. The tractor can start even if the transmission is engaged position causing Tractor to
runaway and serious injury to the people standing nearby the tractor.
For additional safety keep the pull to stop knob (fuel shut off control) in fully pulled out
position. Transmission in neutral position, Foot brake engaged and PTO lever in disengaged
position while attending to Safety Starter Switch or any other work on Tractor.
SAFETY STARTER SWITCH
1. Clutch operated safety switch is provided on all Tractors which allow the starting system to
become operational only when the Clutch pedal is fully pressed.
2. Do not By-pass this safety starter switch or work on it. Only Authorized Dealers are
recommended to work on safety starter switch.
3. On some models Safety Starter switch is provided on transmission High-low shifter lever and
in PTO shifter lever.The tractor can be started only if High-low shifter lever is in neutral
position.
1-10

SAFETY DECALS
The following safety decals ARE INSTALLED ON THE MACHINE.
If a decal become damaged,illegible or is on the machine,replace it.The decal part number is
listed in the parts lists.
FAILURE TO FOLLOW ANY OF THE INSTRUCTIONS ABOVE CAN CAUSE SERIOUS
INJURY TO THE OPERATOR.
●Do not permit anyone but the operator to
ride on the tractor.
There is no safe place for rider.
●Lock brakes together, use warning lights
and SMV emblem while driving on roads.
●Lower equipment, place gear shift levers
in neutral, stop engine, remove the key
and apply parking brake before leaving
the tractor seat.
●Air pressures are specified by the
manufacturer.
●Before starting and operating
know the operating and safety
instructions in the operators Manual
and on the tractor.
●Clear the area of bystanders.
●Locate and know operation of controls.
●Start engine only from Operator’s
seat with depressed clutch pedal,
transmission in the neutral, PTO
disengaged and hydraulic control in lower
position
●Slow down on turns, rough ground and
slopes to avoid upset.
WARNING
Location: On FENDER RH
Part No.: 1260-904-070-1A
TO AVOID POSSIBLE
PERSONAL INJURY, THIS GUARD MUST
BE KEPT IN PLACE
WARNING
Location: ON PTO guard
Part No.: 1260-904-069-0A
1-11

TO PROTECT ENGINE AND
HYDRAULIC COMPONENTS.
●Idle Engine for 1 minute
before shut down or full load
operation.
●Do not exceed 1/2 throttle for
first 5 minutes of operation
CAUTION WARNING
KEEP HANDS AND
CLOTHING
AWAY FROM ROTATING
FAN AND
BELTS TO
PREVENT
SERIOUS INJURY
BEFORE OPERATE THE
TRACTOR,READ THE OPERATOR’S
MANUAL THOROUGHLY,TO
UNDERSTAND THE IMPORTANT
FUNCTIONS AND CONTROLS.
CAUTION
Location: On Radiator bracket side LH & RH
Part No.: 1260-904-061-0
Location: On dash cover side LH
Part No.:1260-904-067-0A
WARNING
The cooling system operates
under pressure.
●It is dangerous to remove
the radiator cap while the
system is hot.
●Always turn the cap slowly
to the first stop and allow
pressure to escape before
removing the cap
completely.
●When operating below
32°F, use suitable anti-
freeze solution as coolant
Location: On Radiator bracket side LH&RH
Part No.:1260-904-063-0
1-12
Location: On Dash cover side RH
Part No.: 1260-904-064-0

DANGER
BLINDNESS CAN
RESULT FROM
BATTERY EXPLOSION.
KEEP SPARKS OR OPEN
FRAMES AWAY FROM
BATTERY.
DO NOT JUMP START.
BURNS CAN RESULT
FROM BATTERY ACID.
IN CASE OF CONTACT
FLUSH IMMEDIATELY
WITH WATER
Location: On battery bracket RH
Part No.: 1260-904-066-0
WARNING
●Pull only from drawbar. Pulling from any other
point can cause rear overturn.
●Do not operate with unshielded PTO.
●Disengage PTO and stop engine before
servicing tractor or attaching and detaching
implements.
●When towing equipment use a Safety chain
FAILURE TO FOLLOW ANY OF THE
INSTRUCTIONS ABOVE CAN CAUSE SERIOUS
INJURY TO THE OPERATOR OR OTHER
PERSONS.
Location: On rear frame
Part No.: 1260-904-065-0A
WARNING
●Start engine only from operators seat. If safety start
switch is bypassed engine can start with transmission
in gear.
●Do not connect or short across terminal on starter
solenoid.
Attach booster cables as shown on battery decal and
operator’s manual.
Starting in gear causing runaway can result in serious
injury.
Location: On dash over side LH
Part no: 1260- 904-062-0A
1-13

UNIVERSAL SYMBOLS
Some of the universal Symbols have been shown below with an indication of their meaning.
Engine speed
(rev/minX100)
Pressured-
open slowly
Corrosive
substance
Hours, recorded Continuous
Variable
”Tortoise”
slow or
minimum
setting
Engine coolant
temperature Warning
”Hare” fast or
maximum
setting
Fuel level Hazard
warning
Transmission
oil pressure
Engine stop
control Neutral Turn signal
Lights Fan
Transmission
oil
temperature
Horn Power take
off engaged parking brake
Engine oil
pressure
Power take
off
disengaged
Work lamps
Air filter Lift arm/raise Differential
lock
Battery charge Lift
arm/lower
See operator’s
manual
1-14

SECTION 1. TRACTOR TYPES AND PUNCHED IDENTIFICATION MARKS
The tractor serial number is shown on the left hand side of the tractor as shown in the picture. The
engine number is stamped on the top of the engine block.
1.MODEL NAME PLATE
The plate indicates the model and type of the tractor.
①Model name
②Production I.D No.
The production I.D reference number is as shown
below
39NC W 01 0001
Production serial No
Production month
Production year
Production Model
1-15
Engine Serial Number
Tractor Serial Number
Tractor Serial Number
Engine Serial Number

3.Engine model and engine serial number plate on the head cover.
1-16

1-17
SECTION 2. SPECIFICATIONS
22:122:1Compression ratio
44Number of Cylinder
Engine
4339Out put(ps/rpm)
Constant mesh(Synchromeshed 3rd and 4th in main shift
in both forward and reverse)
Transmission
12V50AAlternatorDrive Train
12V-1.7KWStarter Capacity
Electronic with cell motorStarting system
12V110AHBatteryElectrical
ForcedLubrication type
Throttle typeInjection pump
1-3-4-21-3-4-2Firing order
(87mmX92.4mm)(80mmX92.4mm)Bore and Stroke
2,1971,857Displacement(cc)
2600rpm2,800rpmRated Speed
Vertical,water cooled 4 cycle DieselType
V2203V1903Model
KUBOTAKUBOTAMaker
Horizontal RoundMuffler
Dry type with paper elementAir cleaner
1.85US gal (7L)Coolant capacity
Water cooled,forced circulationCooling system
Hydrostatic PowerSteering
Bevel gears with diff-LockDifferential lock
DieselFuel
Wet DiskBrakes
StandardMFWD(4WD)
8.717 US gal (33L)
Fuel Tank
capacity:litre
T430/T450T390/T400MODEL

1-18
Rear
Front 8-16- 4PLY8-16- 4PLYTire size
Dimensions 3531 (139”)3531(139”)Overall length
1490(58.7”)1475(58.1”)Overall width
Clutch
330(13”)308(12.1”)Min. Ground Clearance
Central axleRear
Center pinFrontAxle type
13.6-24-6PLY
2288(90.1”)
T430/T450
13.6-24-6PLY
1800 (70.8”)
2228(87.7”)
Multiple wet disk
Dry single disc,mechanic
T390/T400
Wheel base
(Distance between shafts)
Overall Height
PTO
Main
MODEL
Implement
Position ,draft controlHydraulic-control
Category 13-Point hitch category
Draw barDrawing method
3-Point hitchMounting method
HydraulicOperation

Traveling speeds:Km/h (Mile/h)
0.890.98--4
0.680.75--3
0.500.55--2
0.360.39--1
L L
Main shiftRange
shift
2.322.542.712.854
1.771.932.072.173
1.301.431.531.602
0.931.021.091.141
L
7.478.189.439.894
5.696.237.187.543
4.204.605.305.562
2.993.283.783.961
M
12.1613.3014.2314.922
8.669.4810.1410.631
H
ReverseForwardReverseForward
T430/T450T390/T400MODEL
23.65
18.03
26.52
20.21
4
3 16.4719.27
21.6225.29
Traveling Speed : km/hour
1-19
587,705,1057,1321/2600
1 3/8, 6 splineShaft Diameter.Spline teeth
599,977/2800Speed(PTO rpm/Engine rpm)
T430/T450T390/T400Model
PTO shaft