JINMA YL254Y HST User manual

Operation
Manual
Jinma USA LLC

2
Preface
Welcome to be a user of Huanghai Jinma YL254Y gardening wheel tractor. This model has
reasonable structure, high-quality materials and perfect performance. It has characteristics of
stong horsepower, low fuel consumption, light and flexible, easy operation, simple maintenance
and is suitable for a variety of gardening or field operations. We have written this instruction
manual to help the user better master the use, adjustment, repair and maintenance of this series
of models and make full use of the effectiveness and superiority of this series of models. For
engine maintenance methods, please refer to the diesel engine manual.
Notes for Owners
General information
This manual will help you to trial drive, drive and operate your new tractor and perform
maintenance in the correct manner. Please read these instructions carefully. Your tractor is
designed for normal gardening work.
Please contact with your authorized distributors without hesitation at any time when you
need suggestions about tractors. They can satisfy all your demands of maintenance requirements
with professional trained personnel, original parts and necessary equipment.
Provided specifications for your reference and guidance . For more detailed information of
your tractors and supporting equipment, please consult your authorized dealer.
The data provided by this manual would be changed due to the production changes. The
numbers of dimension and weight are only approximate. The illustrations do not show
necessarily the standard state of the tractor, nor does it imply in what areas these functions are
available. For any specific and precise information, please consult your authorized dealer.
Your tractor is designed and constructed to suit a wide range of working conditions and to
provide maximum performance, best economy and ease of operation. The tractor has been
through carefully inspected before delivery by factory and dealer to ensure that it is in good
condition. It’s very important to be sure to perform routine maintenance at the recommended
intervals specified in "Maintenance" of this manual to keep the best operating performance and
ensure trouble-free operation.

3
About this manual
This instruction manual provides information on the use of the tractors, such as the uses
specified by the manufacturer and the conditions predicted by the manufacturer during normal
operation and routine repairs and maintenance.
Please read and understand and keep this manual in good condition for future reference at
all times.
Normal operation
Normal operation means that operators who are familiar with the tractor and the
equipment to be suspended and towed use the tractor according to the manufacturer's intended
use, and follow the information on the operation and safety practices specified by the
manufacturer and the signs on the tractor and equipment in this instruction manual.
Normal operation includes preparing and storing the tractor, placing parts in the working
position or vice versa, adding or removing counterweights and picking up and starting
attachments.
Normal operation involves adjusting and setting up the tractor and equipment to suit the
specific conditions of the field and/or crop.
Routine Maintenance
Routine maintenance refers to the activities that must be performed daily by operators who
are familiar with the characteristics of the tractor and follow the information on routine
maintenance and safety practices specified by the manufacturer or the signs on the tractor in this
instruction manual. Routine maintenance includes oil filling, cleaning, washing, topping up fluid
levels, lubrication, replacing consumable parts (e.g. light bulbs) and so on.
Conversion, regular maintenance and repairing
Regular maintenance means that in order to maintain the expected service life of the tractor,
a person who has been trained and familiar with the characteristics of the tractor must follow the
periodical maintenance and safety practices information specified by the manufacturer in this
manual or other company documents to execute it at specified intervals.
Conversion means that in order to assemble the tractor into a specific configuration, must
be performed by professional service staff who are familiar with the characteristics of the tractor

4
and follow the information on this manual, assembly instructions or other conversion information
partly specified by the manufacturer to execute.
Repairing refers to the purpose of restoring the tractor to normal operation after a
malfunction or performance degradation, must be performed by professional service staff who
are familiar with the characteristics of the tractor to perform in compliance with the repair
information in the dealer's factory operating instructions specified by the manufacturer.
Cleaning of tractors
This machine is the latest high-tech machine with electronic control. Cares should be taken
when cleaning tractors, especially when using high-pressure water guns. Even if all precautions
are taken to protect the electronic components and connectors, the pressure generated by some
cleaning machines may still be too high to ensure complete protection against water ingress.
When using a high-pressure water gun, do not get too close to the tractor and avoid direct
water spraying of electronic components, electronic connectors, vents, seals and fuel caps, etc.
Do not spray a hot engine or exhaust pipe directly with cool water.
Failure to comply with these rules will invalidate the warranty or guarantee.
Safety
The precautions introduced in the first section must be taken to ensure your safety and the
safety of others. Before operating the tractor, read the safety precautions and follow the advice
provided.
First 50-hour maintenance
You will find the 50-hour maintenance report in the later part of this manual.
CAUTION: It is important to carry out the recommended 50 hour service to ensure that your
tractor provides optimum performance and efficiency.
Spare parts
It should be emphasized that the original parts have been inspected and approved by the
company. The installation and/or use of "non-original" products may have a negative impact on
the tractor's design characteristics, thereby affecting its safety. For any damage caused by the use
of non-genuine parts and accessories, the company will not be responsible. Only genuine
replacement parts can be used. The use of non-genuine parts may invalidate the legal approval

5
related to this product.
Any modification to the tractor is prohibited unless specifically authorized in writing by the
company's After Sales Department.
Warranty
Your tractor is warranted according to the contract agreement between the dealers in your
area. If the use, adjustment and maintenance of the tractor not according to the instructions
provided by the manual, the warranty will not apply.
Use of biodiesel fuel
CAUTION: Before using biodiesel in your tractor, please refer to the information on the
storage and use of biodiesel on this manual.
Emission control
CAUTION: The engine and fuel system on the machine are designed to comply with
government emission standards. Distributors, customers, operators and users are strictly
prohibited from tampering in accordance with the law. Failure to comply with the standards will
result in government fines, rework charges, warranty voids, litigation and possible confiscation of
the machine until it is reworked to its original condition. Engine maintenance and/or repairs can
only be carried out by certified mechanics!
Safety alert symbols
In this manual, the safety alert symbol prompts important safety information. When you see
this symbol, you should be alert for possible injuries, read the information below the symbol
carefully, and inform other operators.
"WARNING" and "CAUTION": emphasize the process or technique of correct operation
which if ignored, can cause injury or death to the driver or bystanders.
"IMPORTANT": emphasize the process or technique of correct operation, which if ignored
can cause damage to the tractor or equipment.
Jiangsu Yueda Intelligent Agricultural Equipment Company
June, 2021

6
Product Identification Mark Record Form
Please fill in the table below carefully when purchasing the machine. The number and
other information (including letters) in the table should be recorded completely and clearly
written. The content of the information refer to the tractor product label and the rear end
number of the rear axle housing. Complete and correct information is convenient for users to
quickly report for repairs when the tractor fails or as a basis when the tractor is lost. This
manual is an integral part of the machine. It is recommended that the supplier of the new
tractor or the second-hand tractor should keep relevant documents to prove that this manual
and the tractor are provided to the user at the same time. The user should keep this
instruction manual intact for a long time and store it separately from the tractor.
Huanghai Jinma YL254Y Gardening Wheeled TractorManual
Jiangsu Yueda Intelligent Agricultural Equipment Company Edited
Format󰵼787×1092 1/16 Number󰵼Z01-10-001
First Version on June,2021 First Printing on June,2021
Brand name
Huanghai Jinma
Model
YL254Y HST
Machine number
Chassis number
Engine model
Engine number
Username
Purchase time
Purchase location
Dealer
Dealer contact number
Company name
Jiangsu Yueda Intelligent Agricultural Equipment
Company
Company address
9# NenJiang Road, Yancheng Economic and
Technological Development Zone, Jiangsu,China
Company contact number
0086-515-68823978/68829666

7
Common measurement units, symbols and names
Number
Type
International unit
1
Time
Second -s
2
Minute -min
3
Hour -h
4
Distance
Millimeter -mm
5
Centimeter -cm
6
Meter -m
7
Kilometer (km)-km
8
Power
New (ton)-N
9
Thousand Newtons (tons)-kN
10
Torque
Newton·meter -N.m
11
quality
Kilogram (kg)-kg
12
Pressure
Pa -Pa
13
KPa -kPa
14
MPa -Mpa
15
Temperature
Celsius -℃
16
Speed
Kilometer / Hour -km/h
17
Meter / Second -m/s
18
Rotating speed
Revolutions per minute -r/min
19
Power supply
kilowatt -kW
20
Watt -W
21
Current
Ampere -A
22
Voltage
Volt -V
23
Volume
Cubic meter -㎥
24
Liter - L
25
Milliliters -ml
26
Flow
Liters per minute -L/min
27
Displacement
Milliliters per revolution -ml/r
28
Area
Hectares -hm2 or󰵪ha󰵫
29
Are- dam2 or󰵪a󰵫

8
Content
Preface
Notes for Owners
Product Identification Mark Record Form
Table of common units
Chapter 1 Precautions for safe operation ............................................................................................................ 1
Chapter 2 Overview ............................................................................................................................................... 8
Chapter 3 Main technical specifications of tractor ............................................................................................. 9
3.1 Complete machine parameters ............................................................................................................... 9
3.2 Transmission system .......................................................................................................................... 10
3.3 Travelling, steering, braking ................................................................................................................ 10
3.4 Working equipment ........................................................................................................................... 11
3.5 Perfusion capacity .............................................................................................................................. 11
3.6 Electrical components ........................................................................................................................ 12
Chapter 4 The use of tractor ........................................................................................................................... 13
4.1 Fuel and lubrication of tractor ......................................................................................................... 13
4.2 Coolant of tractor ............................................................................................................................. 14
4.3 Running-in of tractor .......................................................................................................................... 14
4.4 Instruments and controls ................................................................................................................... 15
4.5 Maneuvering and driving ................................................................................................................. 15
4.6 Operation and use of tractor working device ................................................................................... 18
4.7 Front traction mechanism ................................................................................................................ 20
4.8 Front counterweight ......................................................................................................................... 20
4.9 The location and use of the battery.................................................................................................... 20
4.10 Operation of electrical equipment .................................................................................................. 21
Chapter 5 Technical maintenance of tractors ........................................................................................... 26
5.1 Shift technical maintenance ............................................................................................................. 26
5.2 Level 1 technical maintenance ......................................................................................................... 26
5.3 Level 2technical maintenance .......................................................................................................... 27
5.4 Level 3technical maintenance .......................................................................................................... 27
5.5 Level 4technical maintenance .......................................................................................................... 27
5.6 Winter technical maintenance............................................................................................................ 27
5.7 Technical maintenance for long-term storage .................................................................................. 28
Chapter 6 Main adjustments of the tractor ............................................................................................... 29

9
6.1 Clutch adjustment ............................................................................................................................ 29
6.2 Brake adjustment ............................................................................................................................. 30
6.3 Adjustment of central transmission and differential ........................................................................ 31
6.4 Wheel track adjustment ................................................................................................................... 34
6.5 Power output adjustment .................................................................................................................. 34
6.6 Adjustment of the auxiliary gear lever ............................................................................................ 35
6.7 Adjustment of the front drive joystick ............................................................................................. 35
6.8 Adjustment of hydraulic steering ................................................................................................... 36
6.9 Structure and adjustment of the lifter ............................................................................................... 37
6.10 Intake and exhaust system ............................................................................................................... 37
6.11 Anti-rolling protection structure .................................................................................................... 38
6.12 Traction device ................................................................................................................................. 38
Chapter 7 The main faults and troubleshooting methods of tractors ............................................................. 40
7.1 Diesel ............................................................................................................................................... 40
7.2 Transmission system ........................................................................................................................ 41
7.3 Brake ................................................................................................................................................ 42
7.4 Steering and walking system .................................................................................................. 42
7.5 Hydraulic suspension system ........................................................................................................... 43
7.6 Electrical system .............................................................................................................................. 44
Chapter 8 Delivery, acceptance and transportation ......................................................................................... 48
Chapter 9 Dismantling and disposal .................................................................................................................. 49
Chapter 10 Warranty matters ............................................................................................................................ 50
Chapter 11 Appendix .............................................................................................................................................. 52
11.1 Electrical system circuit diagram ................................................................................................... 52
11.2 Distribution map of tractor transmission system and rolling bearing .............................................. 53
11.3 Sketch of the movement of the tractor suspension system ............................................................ 53
11.4 On-board accessories ..................................................................................................................... 54
11.5 Consumable parts list ..................................................................................................................... 55
11.6 Implementation of standards, orders and laws ............................................................................... 55

10
Chapter 1. Precautions for safe operation
1.1 The driver must be specially trained, get a driver’s license and be tested on time, and
then use the tractor after reading the instructions carefully.
1.2 It is strictly forbidden to drive the tractor without a license and to operate without a
license. When driving on highways, pay attention to traffic signs and obey local traffic rules.
1.3 This machine can only be operated, maintained and repaired by personnel who are
familiar with the characteristics of the machine and have relevant knowledge of safe operation.
The driver should wear compact and safe clothes when driving and using the tractor and bare
feet and slippers are strictly prohibited.
1.4 Keep children and non-tractor drivers away from the tractor under any circumstances
to prevent injury.
1.5 It is strictly forbidden to drive the tractor after drinking, fatigue or taking stabilized
drugs, and it is strictly prohibited to overload, over driving and using the tractor.
1.6 The driver should pay special attention to the safety warning signs on the
machine.
1.7 When using the tractor, the driver should strictly follow the safety warning signs to
avoid accidents. When the safety signs are lost, contaminated or worn, they should be replaced
in time.󰵪The safety sign is shown in the picture 1-1 to 1-29󰵫
Number
Meaning
Location
QTY
1-1
Warning: Engine fan
On both sides of
the radiator,
clearly visible
2