TYM T743 User manual

Thank you very much for purchasing our tractor, which, we feel sure, will give you many years of troubling
the service.
The introduction in this manual set out the correct manner of operating, maintaining and checking the tractor
to ensure long-term durability.
Please ensure correct operation of the tractor as incorrect operation can cause substantial mechanical dam-
age as well as cause accidents with the associated injuries.
Please note that in some cases differences can exist between this manual and your tractor due to the manu-
facture’s policy of constant product improvement.
In the event that you strike a problem not covered by this manual please contact your nearest dealer who
will assist you in resolving your problem.
FORWARD
FORWARD
WARNING
CALIFORNIA Proposition 65 Warning
The Engine Exhaust from this product contains chemicals known to
the state of California to cause cancer, birth defects or other repro-
ductive harm.
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The following warning signs in this manual draw additional attention to items of importance for the safe and
correct operation of the tractor.
WARNING SIGNS IN THIS MANUAL
DANGER
This indicates that a condition may result in harm, serious injury or death to you or oth-
er persons if the warning is not heeded. Follow the advice provided with the warning.
WARNING
Hazard or unsafe practice that can lead to severe injury or death.
CAUTION
Hazard or unsafe practice that can lead in injury or death.
IMPORTANT
Instructions for the correct operation of the machine which, if followed, will ensure
that it performs at it’s best.
All information, illustrations and specifications in this manual are based on latest information available at the
time of publication. The right is reserved to make changes at any time without notice.
MEANING OF THE SIGN
SIGN
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INDEX
GENERAL INFORMATION
SAFETY PRECAUTIONS
DESCRIPTION OF TRACTOR CONTROLS
OPERATION
MAINTENANCE
CABIN SYSTEM
SPECIFICATION
TROUBLESHOOTING
APPENDIX
WARRANTY
INDEX
1
2
3
4
5
6
7
8
9
10
11
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CONTENTS
1. TRACTOR IDENTIFICATION ........1-2
2. ABOUT THIS MANUAL...................1-3
3. INTRODUCTION & DESCRIPTION ..1-4
4. OWNER ASSISTANCE..................1-6
5. ROPS (ROLL OVER PROTECTIVE
STRUCTURES)...............................1-7
1. SAFETY INSTRUCTIONS .............2-2
2. DO’S AND DON’T’S...................... 2-22
3. SAFETY SIGNS............................ 2-24
4. UNIVERSAL SYMBOLS.............. 2-29
1. INSTRUMENTAND SWITCHES.....3-2
2. OPERATION THE CONTROLS.....3-10
3. OPERATING THE 3 POINT
LINKAGE (TPL)...................................3-22
4. TOWING DEVICES...........................3-24
1. STARTING THE ENGINE........ 4-2
2. STOPPING THE ENGINE..............4-3
3. DRIVING THE TRACTOR..............4-3
4. CONNECTING AND
DISCONNECTING IMPLEMENT ..4-11
1. CHECKSAND SERVICE ...............5-2
2. MAINTENANCE AND
ADJUSTMENT SCHEDULE .........5-7
3. TIRE SIZE AND INFLATION
PRESSURE .................................. 5-10
4. FILLING DIAGRAM & CAPACITY
TABLE.............................................5-11
5. LUBRICANTS................................ 5-12
6. OPENING METHOD OF EACH
COVER.......................................... 5-13
7. BLEEDING THE FUEL
SYSTEM ...........................
5-14
8. CHANGING THE OILS IN THE
TRACTOR..................................... 5-15
9. CLEANING AND CHANGING
FILTERS ........................................ 5-18
10. CHANGING THE COOLANT.... 5-20
11. GREASING THE TRACTOR .... 5-22
12. GAPADJUSTMENT................... 5-22
13. BATTERY MAINTENANCE ...... 5-25
14. OTHER MAINTENANCE .......... 5-27
15. STORAGE ................................... 5-31
16. FUEL SAVING TIPS ................... 5-33
17. HOW TO USE OF JACKS ........ 5-36
1. MAJOR FEATURES........................6-2
2. INSTRUMENTAND RELATED PARTS ..6-3
3. HOW TO CONTROLS CABIN......6-5
1. SPECIFICATIONS...........................7-2
MAINTENANCE 5
CABIN SYSTEM 6
DESCRIPTION OF TRACTOR 3
OPERATION 4
GENERAL INFORMATION 1
FAULT TRACING 7
SAFETY PRECAUTIONS 2
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CONTENTS
1. ENGINETROUBLESHOOTING ....8-2
2. CLUTCH, BRAKEAND HYDRAULIC
SYSTEM TROUBLESHOOTING ........8-4
3. STEERING WHEEL AND ELECTRIC
INSTRUMENTSTROUBLESHOOTING ..8-5
4. TOWING THE TRACTOR..............8-6
1. WIRING DIAGRAM 1.....................9-3
2. WIRING DIAGRAM 2.....................9-4
3. WIRING DIAGRAM 3.....................9-5
4. WIRING DIAGRAM 4.....................9-6
5. CABIN WIRING DIAGRAM 1........9-7
6. CABIN WIRING DIAGRAM 2........9-8
7. POSITION OF THE FUSE.............9-9
8. WIRING DIAGRAM OF THE
ELECTRIC INSTRUMENT .....9-9
9. POWER TRAIN ...................... 9-10
10. TRACTOR HISTORY CARD .9-11
11. SERVICE RECORD.................. 9-12
12. DAILY OPERATION LOG......... 9-13
13. PARTREPLACEMENTRECORD ... 9-14
1. WARRANTY.................................. 10-2
1. INDEX..............................................11-2
APPENDIX 9
INDEX 11
WARRANTY 10
TROUBLESHOOTING 8
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MEMO
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가 - 
GENERAL INFORMATION
1. TRACTOR IDENTIFICATION ................................... 1-2
2. ABOUT THIS MANUAL ............................................ 1-3
3. INTRODUCTION & DESCRIPTION.......................... 1-4
4. OWNER ASSISTANCE ............................................ 1-6
5. ROPS (ROLL OvER PROTECTIvE STRUCTURES).... 1-7
1
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1 - 2
GENERAL INFORMATION
1. TRACTOR IDENTIFICATION
The manufacturer warrants this
product and full details of the war-
ranty are provided on a separate
warranty schedule.
WARRANTY OF THE PRODUCT
Service is available from any TYM
dealer in the country.
To obtain spare parts please contact
your nearest dealer and give him
the details listed below.

Tractor model

Tractor serial number

Tractor engine number

Part number and description

Quantity required
SERvICE
PARTS
The engine number is stamped on the left hand side of the engine block.
The chassis number is shown on the left hand side of the tractor as shown in
the drawing.
T74O101A
Carved position of the
Engine type or Number
Carved position of the
chassis number
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1 - 3
GENERAL INFORMATION
1
2. ABOUT THIS MANUAL
This manual has been prepared to
assist you in following/adopting the
correct procedure for running-in op-
eration and maintenance of your
new Tong Yang Moolsan CO.,LTD
(Here in after refer to TYM) tractor.
Your tractor has been designed and
built to give maximum performance,
with good fuel economy and ease
of operation under a wide variety
of operating conditions. Prior to de-
livery, The tractor was carefully in-
spected, both at the factory and by
your TYM Dealer/Distributor, to en-
sure that it reaches you in optimum
conditions .To maintain this condi-
tion and ensure trouble free perfor-
mance. it is important that the rou-
tine services, as specified in this
manual, are carried out at the rec-
ommended intervals.
Read this Manual carefully and
keep it in a convenient place for fu-
ture reference. If at any time you re-
quire advice concerning your trac-
tor, do not hesitate to contact your
Authorized TYM dealer/Distributor.
He has trained personnel, genuine
parts and necessary equipments to
undertake all your service require-
ments.
Manufacturer’s policy is one of con-
tinuous improvement, and the right
to change prices, specifications or
equipments at any time without no-
tice is reserved.
All data given in this book is sub-
ject to production variations. Dimen-
sions & weight are approximate only
and the illustrations do not neces-
sarily show tractors in standard con-
dition. For exact information about
any particular tractor, please consult
your TYM dealer/Distributor.
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1 - 4
GENERAL INFORMATION
3. INTRODUCTION & DESCRIPTION
The word, ’tractor’ has been derived
from ‘traction’ which means pulling.
A tractor is required to pull or haul
an equipment, implement or trol-
ley which are coupled to the trac-
tor body through suitable linkage.
A tractor can also be used as a
prime mover as it has a power out-
let source which is also called Pow-
er Take or PTO shaft.
In this book the operating, mainte-
nance and storage instructions for
all models of TYM Diesel tractors
has been complied. This material
has been prepared in detail to help
you in the better understanding of
maintenance and efcient operation
of the machine.
If you need any information not giv-
en in this manual, or require the ser-
vices of a trained mechanic, please
get in touch with the TYM Dealer/
Distributor in your locality. Dealer/
Distributors are kept informed of the
latest methods of servicing tractors.
They stock genuine spare parts and
are backed by the Company’s full
support.
Through this manual. The use of
the terms LEFT, RIGHT, FRONT
and REAR must be understood, to
avoid any confusion when follow-
ing the introductions. The LEFT and
RIGHT means left and right sides of
the tractor when facing forward in
the driver’s seat, Reference to the
FRONT indicates the radiator end
of the tractor, while the REAR, indi-
cates the drawbar end.
When spare parts are required, al-
ways specify the tractor and engine
serial number when ordering these
parts. (See illustration A).This will
facilitate faster delivery and help en-
sure that the correct parts for your
particular tractor is received. The
tractor serial number is punched on
a plate attached to the left hand side
T74O102A
TRACTOR AN INTRODUCTION
LEFT TURN
(COUNTER CLOCK WISE)
RIGHT TURN
(CLOCKWIS)
of the engine body (Illust. A), For
easy reference, we suggest you to
write the number in the space pro-
vided in the owner’s personal data.
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1 - 5
GENERAL INFORMATION
1
▶GENERAL CONSTRUCTION
The transmission case, Clutch,
Clutch housing, Engine and Front
Axle Support are bolted together to
form a rigid unit.
▶FRONT AXLE & WHEELS
The 4WD front axle is a center-piv-
ot, reverse Eliot type. The front
wheel drive mechanism is incorpo-
rated as a part of the axle.
The front wheel drive power is taken
off the rear transmission and trans-
mitted to the differential in the front
axle where the power is divided into
right and left and to the respective
nal cases.
In the final cases, the transmitted
revolution is reduced by the level
gears to drive the front wheel. The
4WD mechanism with level gears
provides wider steering and greater
durability.
▶ENGINE
The tractors are tted with fuel ef-
cient Turbo charged engines with 3
cylinders of T743 designed by Per-
kins Engines Company.
▶CLUTCH AND TRANSMISSION
A single plate dry clutch (11.81″di-
ameter) is used on these tractors.
Tractor with IPTO (Independent
Power Take Off) are fitted with hy-
draulic Clutch Assy. The transmis-
sion Gear box has Twenty four for-
ward & Twenty four reverse speeds
of T743 with high-low selector le-
ver, Presently, TYM tractors are t-
ted with partial synchro mesh type
gears.
▶BRAKES
TYM tractors are provided with in-
dependent disc brakes operated by
two road travel. Hand brake lever is
tted for parking.
DESCRIPTION
▶REAR AXLE & WHEELS
This is mounted on ball bearings
and is enclosed in removable hous-
ing which are bolted to the transmis-
sion case. The rim & Disc tted with
Rear tires are bolted to the outer
ange of Rear Axle.
▶HYDRAULIC SYSTEM & LINK-
AGES
TYM tractors are tted with Live (i.e.
system is in operation even when
clutch is disengaged.) independent,
very touch of hydraulic System.
Three point Linkages can be used
for category 2 type of implements.
▶STEERING
It consists of Hydrostatic Power
steering system, which has a hy-
draulic cylinder and tandem type hy-
draulic pump.
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1 - 6
GENERAL INFORMATION
▶ELECTRICAL SYSTEM
A 12 Volt Lead Acid Propylene Bat-
tery is used to activate the Engine
through the Starter Motor and the
Electrical system comprising Horn,
Head Lamp. Side indicator Lamps,
Plough Lamp, Brake Light, Gauge
lamp, Hazard Lamp. Generator or
Alternator, Fuse box also from part
of the Electrical system.

When operating the tractor at
High speed, Do not attempt to
make sharp turns by using the
brakes.This may result in over-
turning of the tractor causing
serious injury or DEATH.
WARNING
4. OWNER ASSISTANCE
We at TYM CO.,LTD and your TYM
Dealer/Distributor wants you to be
completely satisfied with your in-
vestment. Normally any problems
with your equipment will be handled
by your Dealer/Distributor’s Service
Departments, however, misunder-
standing can occur. If you feel that
your problem has not been handled
to your satisfaction, we suggest the
following.
Contact the owner or General Man-
ager of the Dealership, explain the
problem, and request assistance.
When additional assistance is need-
ed, Your Dealer/Distributor has di-
rect access to your office. If you
cannot obtain satisfaction by doing
this, contact the TYM CO.,LTD. Of-
ce and provide them with;

Your name, address and tele-
phone number

Model and tractor serial number

Dealer/Distributor Name & Ad-
dress

Machine purchase date and Hours
used

Nature of problem
Before contacting TYM CO.,LTD of-
ce, be aware that your problem will
likely to be resolved in the Dealer-
ship using the Dealer’s/Distributor’
s facilities, equipment and person-
nel. So it is important that your initial
contact be with the Dealer/Distribu-
tor.
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1 - 7
GENERAL INFORMATION
1
5. ROPS (ROLL OvER PROTECTIvE STRUCTURES)
TYM tractors are equipped with a
frame for the protection of opera-
tors.
In the case of cab tractors the frame
is incorporated in the cab structure.
The objective of the frame or cab
structure is to protect the operator in
the event of a roll over
and they are designed to support
the entire weight of the tractor in
that event.
Each TYM ROPS frame or cab
structure is designed and has been
tested to meet industry and or gov-
ernment standards.
Included in these tests were all
mounting bases and bolts or other
fasteners.
As the ROPS frame or cab together
with the seat belt was designed to
meet certain standards, they must
be maintained in good order and
condition. To achieve this objective,
both the structure and the seat belt
should be inspected on a regular
basis. (Every time the tractor is ser-
viced)
In the event that the seat belt is
damaged or frayed, it should be re-
placed and in the event that the
ROPS frame or any part of the
mounting structure is damaged or
cracked, the faulty component must
be replaced with a new unit. Such a
unit must meet all of the test criteria
of the original unit. Fitment of an in-
ferior item or items affects the certi-
cation of the entire ROPS structure
and the effectiveness of the struc-
ture in the event of an accident.
Drilling or welding of the ROPS
structure is forbidden.
ROLL OvER PROTECTIvE STRUCTURES (ROPS) USE OF THE TRACTOR WITH THE ROPS
LOWERED CAN CAUSE FATAL INJURIES
On some models the ROPS frame
has a fold down feature, which can
be used to enter low buildings etc.
Take care when lowering the upper
section of the ROPS frame and take
extreme care while driving the tractor
with the ROPS frame lowered.
Do not wear the seat belt with
the ROPS lowered and please
remember that the fold down facility
is for special circumstances only and
must not be lowered for general use.
For ROPS frames to be effec-
tive and protect the operator,
the seat belt provided must
be worn in order to keep
operators within the ROPS
protected area in the event of
a roll over. Failure to use the
seat belt can still cause seri-
ous injury or death.
•
DANGER
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1 - 8
GENERAL INFORMATION
If the tractor has rolled over or the
ROPS has damaged (such as strik-
ing an overhead object during trans-
port), It must be replaced to provide
the original protection. After an ac-
cident, check for damages to the
1.ROPS. 2.Seat. 3.seat belt & seat
mountings. Before you operate a
tractor, replace all damaged parts.
T74O103A T72O105A
Before operating a tractor it is im-
portant to adjust the seat to the
most comfortable position & check
whether it is properly locked in its
position.
DAMAGE OF THE ROPS
Seat Belt
WARNING

If the ROPS is removed or re-
placed, make certain that the
proper hardware is used to re-
place the ROPS and the recom-
mended torque values are applied
to the attaching bolts.
WARNING

Do not use solvents to clean
the seat. Use warm water with
a little detergent added.
NOTE
SEAT SLIDING
WARNING

Do not weld, drill or straighten
the ROPS.
WARNING

Always wear your seat belt if
the tractor is equipped with
ROPS.

Never attach chains, ropes to
the ROPS for pulling purpos-
es; this will cause the tractor
to tip backwards. Always pull
from the tractor drawbar. Be
careful when driving through
door opening or under low
overhead objects. Make sure
there is sufficient overhead
clearance for the ROPS fatal
injuries.
Forwakd /
Backward
adjustment
lever

Do not put a hand between the
seat and the slides when ad-
justing the seat position. You
can get injured unexpectedly.
CAUTION
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1 - 9
GENERAL INFORMATION
1
To select Seat position, move Ad-
justing lever and slide Seat closer to
or away from Dash panel and con-
trols.
Check whether the seat prop-
erly locked in its position be-
fore driving the tractor.
•
DANGER
Always use the seat belt
when the ROPS is installed.
Do not use the seat belt if a
foldable ROPS is down or
there is no ROPS. Check the
seat belt regularly and re-
place if frayed or damaged.
•
DANGER
To change the seatback angle, raise
The lever on the left of the seat.
Then, adjust the seatback angle
with The lever pulled. Release the
lever After adjustment . Make sure
that the Lever is returned and the
seat is rmLy xed after adjustment.
The seat cushion can be adjusted
According to the weight of the driver.
Turning the cushion adjustment le-
ver Counterclockwise to the 50kg
position Makes the cushion lighter,
and turning the lever clockwise to
the 130kg position makes the cush-
ion heavier.
T72O106A T72O107A
SEAT BACK RECLINING CUSHION STRENGTH ADJUSTMENT
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MEMO
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나 - 
SAFETY PRECAUTIONS
1. SAFETY INSTRUCTIONS ........................................ 2-2
2. DO’S AND DON’T’S ............................................... 2-22
3. SAFETY SIGNS ...................................................... 2-24
4. UNIVERSAL SYMBOLS ......................................... 2-29
2
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2 - 2
SAFETY PRECAUTIONS
1. SAFETY INSTRUCTIONS
T74O201A
This symbol means ATTENTION!
YOUR SAFETY IS INVOLVED. The
message that follows the symbol
contains important information about
safety. Carefully read the message.
RECOGNIZE SAFETY INFOR-
MATION SIGNAL WORDS
DANGER
WARNING
CAUTION
T74O202A
A signal word "DANGER, WARN-
ING OR CAUTION" is used with
safety alert symbol. DANGER identi-
es the most serious hazards. Safe-
ty signs with signal Word "DANGER
OR WARNING" are typically near
specific hazards. General precau-
tions are listed on CAUTION safety
signs.
READ SAFETY INSTRUCTION
T72O203A
Carefully read all safety instructions
given in this manual for your safety.
Tempering with any of the safety de-
vices can cause serious injuries or
death. Keep all safety signs in good
condition. Replace missing or dam-
aged safety signs.
Keep your tractor in proper condi-
tion and do not allow any unauthor-
ized modications to be carried out
on the tractor, which may impair the
function/safety and affect tractor life.
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2- 3
SAFETY PRECAUTIONS
2
PROTECTION CHILDREN
T72O204A
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 trac-
tor or any implement.
USE OF ROPS AND SEAT BELT
T72O205A
The Roll Over Protective Struc-
ture (ROPS) has been certified to
industry and/or government stan-
dards. Any damage or alternation
to the ROPS, mounting hard-ware,
or seat belt voids the certification
and will reduce or eliminate protec-
tion for the operator in the event of
a roll-over. The ROPS, mounting
hardware, and seat belt should be
checked after the rst 100 hours of
tractor and every 500 hours there-
after for any evidence of damage,
wear or cracks. In the event of dam-
age 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 ma-
chine is equipped with a certified
ROPS.
Failure to do so will reduce or elim-
inate protection for the operator in
the event of a roll over.
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2 - 4
SAFETY PRECAUTIONS
T72O206A
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 trac-
tor to tip over backward. Back out of
these situations if possible.
PRECAUTION TO AVOID TIPPING
T72O207A
Before working on the tractor;
Lower all equipment to the ground.
Stop the engine and remove the
key.
PARK TRACTOR SAFELY
T72O208A
Do not allow riders on the tractor.
Riders on tractor are subject to in-
jury such as being stuck by foreign
objects and being thrown off of the
tractor.
KEEP RIDERS OFF TRACTOR
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