JINMA HHJM 30 Series User manual

Executive Product Standard:Q/320901YT 010-2004/009-2005
Preface
Thank you for your trust on our HHJM 30-40 series wheel tractors (hereinafter
HHJM -300B, HHJM -304B, HHJM-350, HHJM-354, HHJM-400A, and HHJM-404).
This series is reasonable in structure, excellent in materials and completed in
performance. In order to help customers operate, adjust , repair and maintain the
products in a better way, and for better performance of this series, we compile this
operation manual. As for the operation & maintenance manual of engines, please refer
to diesel engine manual.
With technical development and requirements from our customers, descriptions
in the manual may differ from the real structure of your tractors and the differences
will be involved in the next version. If what you want to know is beyond this book,
please contact the agent or the manufacturer.
Precaution Symbols
In this manual, this precaution symbol means some important safety information.
Seeing this symbol, you should read the contents below it carefully and inform other
operators to protect from possible hurts.
"Warning " and "Attention ": These focus on correct steps or techniqus in
operations. Driver or stander-bys will be hurt or even die due to ignore.
"Important" : These focus on correct steps or techniqus in operations. Your
ignore can result in the damages to tractors or equipments.

1
Contents
Preface
Chapter One Precautions for Safe Operations--------------------------------------------------1
Chapter Two General Description------------------------------------------------------------------5
Chapter Three Some key Technical Specifications of the Tractor
3.1 Parameter of the Whole Unit-------------------------------------------------------------6
3.2 Engine Parameter--------------------------------------------------------------------------8
3.3 Transmission system---------------------------------------------------------------------10
3.4 Traveling, steering, and braking-------------------------------------------------------11
3.5 Working Device -------------------------------------------------------------------------12
3.6 Electric System --------------------------------------------------------------------------13
3.7 Perfusion Capacities --------------------------------------------------------------------14
3.8 Air-braking Unit -------------------------------------------------------------------------14
3.9 Reference Data of High Clearance-----------------------------------------------------14
Chapter Four Operation of the Tractor ----------------------------------------------------------15
4.1 Fuel and Lubricating Oil of the Tractor-----------------------------------------------15
4.2 Water--------------------------------------------------------------------------------------16
4.3 Running-in--------------------------------------------------------------------------------17
4.4 Steering Mechanism and Meters-------------------------------------------------------19
4.5 Control and Drive------------------------------------------------------------------------20
4.6 Operation and Use of the Working Units of the Tractor----------------------------27
Chapter Five Technical Maintenance for the Tractor-----------------------------------------34
5.1 Shift Technical Maintenance----------------------------------------------------------34
5.2 I- GradeTechnical Maintenance-------------------------------------------------------35
5.3 II-Grade Technical Maintenance-------------------------------------------------------35
5.4 III-Grade Techincal Maintenance -----------------------------------------------------36
5.5 Techinical Maintenance for Winter----------------------------------------------------37
5.6 Techincal Maintenance for Long-time Storage--------------------------------------37
Chapter Six Structure of the Tractor and Its Maintenance

2
6.1 Tramsmission-----------------------------------------------------------------------------39
6.1.1 Clutch-----------------------------------------------------------------------------------39
6.1.2 Shaft Coupling-------------------------------------------------------------------------42
6.1.3 Gear Box Assembly ------------------------------------------------------------------43
6.1.4 Differential Gear and Differential Lock--------------------------------------------45
6.1.5 Final Transmission--------------------------------------------------------------------48
6.2 T ravel & Steering System-------------------------------------------------------------49
6.2.1 Steering Gear --------------------------------------------------------------------------49
6.2.2 Brake------------------------------------------------------------------------------------53
6.2.3 Two-wheel Front Driving Axle-----------------------------------------------------55
6.2.4 Front Driving Axle--------------------------------------------------------------------57
6.2.5 Wheels----------------------------------------------------------------------------------62
6.3 Working Unit----------------------------------------------------------------------------64
6.3.1 Suspending System--------------------------------------------------------------------64
6.3.2 Structure and Use of PTO Shaft-----------------------------------------------------70
6.4 Electric Installation----------------------------------------------------------------------71
6.4.1 Engine-----------------------------------------------------------------------------------72
6.4.2 VoltageAdjuster-----------------------------------------------------------------------77
6.4.3 Battery----------------------------------------------------------------------------------78
6.4.4 Starter-----------------------------------------------------------------------------------81
6.4.5 Preheating Plug------------------------------------------------------------------------83
6.4.6 Fuse Box--------------------------------------------------------------------------------84
6.4.7 Front and Back Lights and Horn--------------------------------------------------84
6.4.8 Current meter, Oil Pressure Meter, Water Temperature gage and Chronometer----84
6.5 Intake & Exhaust System---------------------------------------------------------------85
6.6 Use and Adjustment of Air-braking device of the Trailer------------------------87
Chapter Seven Main Troubles and The Solutions---------------------------------------------90
7.1 Diesel is Hard to Start or can't Be Start-----------------------------------------------90
7.2 Self -stop of Diesel----------------------------------------------------------------------90
7.3 Inefficient Power of Diesel------------------------------------------------------------91

3
7.4 Abnormal Air Exhaust Color----------------------------------------------------------91
7.5 Over- high temperature of Exhausted Water----------------------------------------92
7.6 Speed of Diesel Raises Suddenly (Flying Diesel)----------------------------------92
7.7 Abnormal Sound during Engine Running------------------------------------------ 92
7.8 Too low pressure or Zero Pressure of Diesel Oil-----------------------------------93
7.9 Brake--------------------------------------------------------------------------------------93
7.10 Clutch-----------------------------------------------------------------------------------93
7.11 Hydraulic Suspending System--------------------------------------------------------94
7.12 Electric System-------------------------------------------------------------------------95
7.12.1Starter ----------------------------------------------------------------------------------95
7.12.2 Batteries--------------------------------------------------------------------------------96
7.12.3 Meters & Indicators-----------------------------------------------------------------96
7.12.4 Lights----------------------------------------------------------------------------------97
7.12.5 Silicon Rectification Generator----------------------------------------------------97
Chapter Eight Appendix----------------------------------------------------------------------------98
8.1 Electric Wiring Map --------------------------------------------------------------------98
8.2 Sizes of the Suspending System--------------------------------------------------------99
8.3 Spare Parts along with the machine------------------------------------------------100
8.4 Tools along with the machine----------------------------------------------------------101

1
Chapter One Precautions for Safe Operations
1.1 Only after reading the manual carefully, can the driver who has got special training and
driving license with a full survey record operate the tractor. Tractor cannot be operated without
licenses.
1.2 This machine only can be operated, maintained and repaired by the persons who are familiar
to its features and know related safe operation rules.
1.3 Driver should pay especial attention to the precaution symbol on the machine.
1.4 It is forbidden to drive tractors after being drunk, tired or taking some antipsychotic.
1.5 During operating the tractor, driver should strictly comply with the informed steps according
to the precaution symbols to avoid accidents. When the symbols are lost, polluted or abased, they
should be replaced in time.( See Fig.1--1~Fig. 1-7 for precaution symbols)
For physical safety:
----When using a PTO shaft, a safety
cover should be installed, on which
people are strictly prohibited to sit.
Bush of PTO shaft should be set when
PTO shaft is out of operation.
-----Rotation speeds of farm
implements should match with that of
the tractor PTO.
----- Engine should stop working when
a farm implement is connected.
-----The deviation angle of gimbaled
joint should not be too big when it is
connected with PTO, or the gimbaled
joint can be damaged.
-----Only after the clutch is released
thoroughly, can the gimbaled joint be
connected.
Warning
Warning
To avoid injuries and
deaths, don't seat on
the mud apron.
Fig.1-1 Stuck to the back of the tractor Fig. 1-2 Stuck to the left-back
wheel protecting case.

2
For physical safety:
----Read and comprehend the operation
manual before operating tractor;
----When starting the tractor, put into
neutral gear and release the clutch.
-----Sliding down aslope with neutral
gear is strictly prohibited.
-----Only when sitting on the driver's
seat, can an operator start engine;
-----Drunk driving or fatigue driving is
strictly prohibited;
-----Before maintaining and repairing
tractor, operator should stop engine and
take down the key. When engine
works, don't open or disassemble the
safety cover.
Warning
To avoid casualty caused by
overturn or bump, the left and the
right braking pedals should be
jointly locked up.
During parking, slide or
rolling can happen casualty, so
parking brake is needed then.
Warning
Fig. 1-3 Stuck to the front of the dashboard
Fig.1-4 Stuck on the right-back
wheelguard plate
For physical safety:
----Keep yourself far away from
lifting area of the lift link when
operating hydraulic lifter;
----three-point hitch gears are only
applicable for the farm implements
specially designed for three-point
hitch suspending linkages.
Attention
Easy to cause fire.
Keep sparker away.
Attention
Fig. 1-6 Stuck beside the oil
filler of the fuel tank
Fig. Stuck to the back of the tractor Fig.1-7 Stuck near the water
tank
Protect yourself
against scald .

3
1.6 Before operation, a new tractor should have a running-
in following the related regulations. And then normal
loaded work can be done.
1.7 Before the tractor moves, on its path should be no
any barrier, and no people between the tractor and the rear
implement or trailer.
1.8 Don't leave driver's seat to start or control the tractor. Each gear shifter should be placed at the "
neutral gear" before starting or getting off the tractor.
1.9 Don't get on or off the tractor during its running. Before repairing the tractor, the machine should
be stopped and the key should be taken off. Repair or check under the tractor is forbidden when the
engine runs.
1.10 To avoid turn-over, only low gears can be used, especially going on high slopes or muddy path.
When going down-slope, clutch engaging or neutral gear is not allowed. Let the running tractor not too
near to any ditch, to avoid damage due to broken trenches.
1.11 In transportation, the left and the right brake pedals should be joined and locked together. Move
PTO handle to the "Apart" position.
1.12 When the suspended implement of the tractor is transferred, hydraulic lifter should be at the
position of "neutral".
1.13 No sharp turn is permitted while driving at a high speed. Sharp turn caused by one-side brake is
prohibited either to avoid turn-over or parts damaging.
1.14 You'd better check and fasten bolts of wheel radial plates and the bolts or nuts in other key
positions.
1.15 When transferring to another field or operating with hung farm implements, high speed is
forbidden to avoid the damage to parts of lifting system and suspending system. Before leaving the
tractor, driver should drop its farm implement first, stop the engine and take off the key to prevent
others from starting the tractor.
1.16 Before starting the tractor, you'd better check oil duct, electric circuit and cooling water. In any
case, it is not allowed to fill the fuel that has not been precipitated or filtrated into tank. After starting
the machine, you'd better pay attention to all indicators and meters.
1.17 Before filling fuel into tank, you'd better stop the engine; Smoking is prohibited during fuel filling
and check & repair for fuel system.
1.18 When deep treaded tires working or transferring in fields, high speed is not allowed; Deep treaded
tires can't be used for transportation.
Fig. 1-8 Stuck on the muffler
High temperature!
Keep away to avoid
scald.

4
1.19 Tractor cannot be used with over load to avoid damage to organs. Load limit of the trailer is 3 tons.
1.20 Dirt should be eliminated from radiating water tank to guarantee its heat radiating performance.
When the water tank is too hot, you can't water the engine or water tank with cold water to avoid
breaking the tank. You should reduce its load and only after the water is not so hot can cooling water be
filled with the engine running.
1.21 You should tell your next shift about any troubles of the tractor. During operation in night, fine
lightings are necessary.
℃
1.22 When it works below 0 in winter, exhaust all water in the case of idling operation to avoid
organs freezing caused by remained water.
1.23 Manufacturer is not responsible for any reduced reliability of the machine, personnel hurt or
machine damaging due to any unauthorized reform on the tractor.
1.24 During running or working, if one of the tractor's driving wheels is found severe wheelspin, you
can use the differential lock following its instruction. The differential lock is forbidden to use in any
other case to avoid machine damaging or other accidents.
1.25 During harvesting or operating in field yard, a spark extinguisher should be installed on air exhaust.
1.26 Exhaust elbow and muffler are high temperature components. Within a half hour after starting or
stopping the engine, anyone is not allowed to get near to avoid burn.
1.27 Faulted tractor cannot be put into use, especially when oil pressure is zero or too low, water is too
hot or abnormal sound or smell come. The machine should be stopped for check and the trouble should
be shot in time.
1.28 Only after taking earth wire off from the battery can electric parts be repaired.
1.29 Don't stop the tractor on a big slop. If so, its park brakes should be used and a triangle should be
stuck under the rear wheels.
1.30 The protecting components for driver are not indispensable. However when installing safety
frame on the tractor, a seat belt is necessary; when removing the frame from the tractor, the seat belt
should be removed too to avoid use by mistake.
1.31 When working in fields or muddy area, you'd better remove the dirt from your shoes and keep the
pedals clean. Catch the armrest careful when getting on or off the tractor.
1.32 When driving along the road, you'd better follow the local traffic rules
1.33 In any case kids or no-drivers should be kept far away from the machine to avoid hurts.
1.34 Before using PTO, a protecting cover need be installed.

5
Chapter Two General Description
HHJM30~40 series wheel tractors (HHJM-300B, HHJM-304B, HHJM-350, HHJM-354,
HHJM-400A and HHJM-404A) are the newly developed wheel tractors accoording to demands
from our international markets.
HHJM30-40 series wheel tractors are newly developed with kinds of new technologies, new
techniques, and new structures and on the years' production experiences of 18-30 series. The new
series has more reasonable structures and better improved performance. They are more powerful,
economical in oil consumption, high efficient, nice in appearance, easy in operation and
maintenance, convenient for being supported, economical in use and perfect in integrated
performance.
HHJM30-40 series wheel tractors are equipped with 30hp, 35hp, and 40hp vertical and oil-
saving diesels respectively. Direct transmission is used between the engine and the transmission
system and an 8-gear gear box is installed for the work of rototilling, ploughing, harvesting,
transportation and so on. They have a hydraulic suspending system with perfect performance, low-
pressure broad driving wheel tires with fine adhesion, and air-braking device with reliable
performance. Besides, customers can select different types of tractors according to their own
requirements and economic situations. The series include single-acting clutch and dual-acting
clutch, 2-wheel driving and 4-wheel driving, mechanical steering and entirely hydraulic steering.
Warning:
1. Manufacturer is not responsible for any reduced reliability of the machine, personnel
hurt or machine damaging due to any unauthorized reform on the tractor.
2. You can only use the implements specially designed for this series. Customers
should try to avoid possible damages to the machines caused by the farm implements
that don't follow the configuring regulations.

6
Chapter Three Key Technical Specifications of the Tractor
3.1 Parameters of the whole unit
Tractor Model
Data Name HHJM -300B HHJM-350
HHJM-400A HHJM-304B HHJM-354 HHJM-404A
Model ×（ ）4 2 2-wheel driving ×（ ）4 4 4-wheel driving
external
dimensions
mm
2930
1450
1954
3090
1450
1954
3070
1440
1985
3230
1440
1985
axle base mm 1620 1776.5 1677 1833.5
usual tread between fore wheels
mm 1050~1450(adjustable) 1200/1300(dispensable)
usual tread between real wheels
mm 1150~1450(adjustable) 1150~1450(adjustable)
Min. road clearance mm 355 292
radii of turning circle m
Unilateral brake
unilateral un-brake
2.8
3.2
3.0
3.5
3.1
3.9
3.4
4.2
tractor mass kg
structural mass
Mi. service mass
1298
1453
1328
1483
1585
1750
1615
1780
mass distribution kg
Fore shaft
rear shaft
587
866
845
985
Additional mass (elective) kg
fore shaft
rear shaft
60
160
60
160
Rated tractive force N 5900 7000 6400 8810

7
Theoretical Velocity km/h
1. Type 300B, 304B, 350 and 354 tractors with real driving wheels: 11.2-24, starting rev is 2300r/min,
finally transfer to quick gears
Type 400A tractor with real driving wheels: 11.2-28, starting rev is 2300r/min, finally transfer to
quick gears
404A tractor with real driving wheel tires: 11.2-28, starting rev is 2300r/min, finally transfer to slow
gears
2. speeds in () are for bi-acting types
Type
Theoretical speed
gear
HHJM-300B/304B/350/354 HHJM-400A HHJM-404A
I-gear 1.88(2.2) 2.05(2.4) 1.87(2.19)
II-gear 2.37(2.94) 2.59(3.21) 2.36(2.92)
III-gear 3.86(4.13) 4.12(4.5) 3.84(4.1)
IV-gear 6.12(6.12) 6.68(6.68) 6.09(6.09)
V-gear 8.67(10.15) 9.45(11.07) 8.61(10.08)
VI-gear 10.94(13.58) 11.93(14.81) 10.87(13.49)
VII-gear 17.81(19.03) 19.43(20.76) 17.7(18.91)
VIII-gear 28.25(28.25) 30.81(30.81) 28.07(28.07)
reserve I-gear 1.75(2.8) 1.91(3.05) 1.74(2.78)
reserve II-gear 8.09(12.92) 8.82(14.09) 8.04(12.83)

8
3.2Engine parameter
Type
Engine Data
HHJM-300B/304B HHJM-350/354
H-
400A/
404A
Engine type SL210
5ZN390 Y480 LL480 SL310 0TY395 Y485 LL485 ZN490
Engine model four-stroke, water-cooling and vertical type
×Cylinder Bore
Travel mm
×105
110
×90
95
×80
90
×80
90
×100
117
×95
105
×85
95
×85
95 ×90 100
Rated Output and
rotate Speed
kW/r/min
22.1/
2200
22.1/
2400
22.1/
2300
22.1/
2350
25.7/
2200
25.7/
2300
25.7/
2300
25.7/
2350 29.4/2400
Fuel
Consumption
Rate in Rated
Operating
Mode g/kW·h
≤246 ≤250 ≤287 ≤258 243.0 ≤248 ≤285 ≤258 ≤250
Engine Oil
Consumption
Rate in Rated
Operation
Mode g/kW·h
1.63 ≤2.72 ≤2.72 〈2.3 1.63 ≤2.04 ≤2.04 〈2.3 ≤2.72
reserve ratio of
torque ≥15% ≥15% ≥15% ≥15% ≥15% ≥15% 15% ≥15% ≥15%
limit of smoke ≤4.5 ≤4.5 4.5 ≤4≤4.5 ≤4.5 ≤3.5 ≤3≤4.5
Compression
Ratio 17 18 22.5 18or22 17 18 22 18or
Total
Displacement of
Piston l
22 18
Ignition Order 1.905 1.813 1.809 1.809 2.757 2.23 2.043 2.156 2.545

9
Tractor Model
Engine Parameter
HHJM-300B/304B HHJM-350/354 HHJM-
400A/404A
Engine Type SL21
05 ZN390 Y480 LL480 SL3100 TY395 Y485 LL485 ZN490
Gas
Distribut
ion
Phase
Starting Point of
Inlet Valve
ahead from TDC
Closing Point of
Inlet Valve
back from
TDC
Starting Point of
Exhaust Valve
ahead form
BDC
Closing Point of
Exhaust Valve
back from BDC
℃12
℃44
℃52
℃12
℃12
℃38
℃50
℃14
℃14.5
℃37.5
℃56
℃12
℃14.5
℃37.5
℃56
℃12
℃12
℃44
℃52
℃12
℃8
℃52
℃52
℃8
℃14.5
℃37.5
℃56
℃12
℃14.5
℃37.5
℃56
℃12
℃12
℃38
℃50
℃14
Valve
Clearance
(cold state)
mm
Inlet Valve 0.30~
0.35
0.25~
0.30
～0.20
0.25
0.21~
0.31
0.30~
0.35
0.30~
0.35
～0.20
0.25 0.21~031 0.25~ 0.30
Exhaust
Valve
0.40~
0.45
0.25~
0.30
～0.25
0.30
0.21~
0.31
0.40~
0.45
0.40~
0.45
～0.25
0.30 0.21~031 0.25~ 0.30
Cooling-system water cooling
starting model electric starting
Net Mass of Engine
kg 275 195 195 230 325 330 200 240 205
Dimensions( mm )
L
W
H
582
330
736
684
562
675.5
692
494
610
687
494
610
712
530
744
666
500
678
692
494
610
757
494
620
777
516
696.5
Capacity of oil pan
L7.0 5 5.5 7.1~8.4 10.0 4.5 5.5 6.8~8.1 7
Generator Model JF1
31 TF11A 2JF200 JFWBC
1JF131 JT11or
2JF200
J2JF20
0
JFWBC
1JF11A
Starting Motor
QDj
130
9-
ky
QD138 QD100
C3
QD1538
or
QDZ157
Y
QDj140
1
QD152
5or
QD131
5D
QD131
5A
QD153
8 or
QDZ15
7Y
QD139

10
3.3 Transmission system
Type
Part HHJM-300B/350/400A HHJM-304B/354/404A
Clutch single-acting, dry and constantly-engaged friction type
gual-acting, dry and constantly-engaged friction type
Gearbox （）×two-axial, direct teeth 4+1 2 combination type
Central Drive spiral taper gear
Differential two planetary gear teeth, bevel gear type (with differential lock)
Final Drive external gearing direct teeth type
Fore Drive Axle —— whole-sealed bevel gear type
Transfer Case —— spur gear

11
3.4Traveling, steering, and braking
Type
Part Parameter
HHJM- HHJM-
300B/350 400A 304B/354 404A
Frame Type No Frame
Type of Fore Shaft(Fore
Drive Axle) Inverted-U Pipe Epuilibrium tri-sentor separable axisle shousing of conic reducer
Fore Axle Tilt Angle ±°13 ±°12
Toe-in of Front Wheel
mm 4~11 3~11
Toe-out of Front Wheel °2°3
Tumble Home of Main
Shaft °8°8
tires
for
farm
use
Fro
nt
Wh
eel
Specification
of Tire
5.00-15
8PR
6.00-16
6PR
7.50-16
6PR
Max. air
pressure Pa 530 340 210
Max. load kg 565 560 650
Re
ar
Wh
eel
Specification
of Tire
9.5-24
6PR/8PR
11.2-24
6R/8PR
11.2-28
6R/8PR
9.5-24
6PR/8PR
11.2-24
6R/8PR
11.2-28
6R/8PR
Max. air
pressure kPa 210/280 180/240 180/240 210/280 180/240 180/240
Max. load kg 940/1110 1045/1225 1115/1305 940/1110 1045/1225 1115/1305
tires
for
padd
y
field
s
Fro
nt
Wh
eel
Specification
of Tire
as the tires for the farm use
6.50-16-6PR
Max. air
pressure Pa 270
Max. load kg 600
Re
ar
Wh
eel
Specification
of Tire
9.5-24
6PR/8PR
11.2-24
6PR
9.5-24
6PR/8PR
11.2-24
6PR
Max. air
pressure M
kPa
240/280 210 240/280 210
Max. load kg 1315/1435 1465 1315/1435 1465
tires
for
law
n
Fro
nt
Wh
eel
Specification
of Tire ×31 9.5-16-4PR
Max. air
pressure Pa 160
Max. load kg 850
Re
ar
Wh
eel
Specification
of Tire 13-20-6PR
Max. air
pressure kPa 120
Max. load kg 1050
Type of Redirector worm-and-roller type (TS30A) or fully-hydraulic steering(BZZ-E80)
Brake Disc-type Brake

12
3.5 Working unit
Tractor Model
Parts and Parameter HHJM-300B/304B/350/354/400A/404A
Type of Lifter Semi-divided positioned Type
Model of Gear Pump CBN-E310(turn flat port to right for connection)
Model of Constant Flow Pump CBT1-E306HL062L or HLCB-06/06
Model of Dispenser Outlaid Unload Control
（×）cylinder diameter stroke mm ×85 100
Safety Valve Type of System andOil Cylinder Damping Valve Direct Action Type and Cone
Valve Direct Action
System Pressure MPa 16
Opening Pressure of Safety Valve MPa 18
Plow Depth Control Force-Position Integrated Control
Max Lift Force in the Position of 610mm back
from Lower Hook Station kN 4.96/5.79/6.6
Hydraulic-
pressure
Output Joint
Specification of Diameter ×M16 1.5
Quantity 1
Output Discharge l/min 12
Type of Hanging Device Postpositional Three-point Suspending
Hanging Connection Triangle mm ×± ×460 718 15(H W)
Connecting Aperture of Upper Suspending Point
mm Φ19
Connecting Aperture of Lower Suspending Point
mm Φ22
Type of PTO Shaft combined type
Rotate Speed r/min 540/720
Circumrotation Direction Clockwise(Facing the head-ward of Tractor)
Shaft Extension ×× ××
I Type(6-35 28.91 8.69)or(8-38 32 6)
[GB/T 1592-2001]
Pulling Device
Diameter of Joint Pin mm Φ33
Terracing Clearance of Joint Pin
(Midpoint) mm 368/512(not essential)

13
3.6 Electrical System
Type
Parts HHJM-300B/304B/350/354/400A/404A
Electric
System One-wire System,Minus Earth 12V
Engine oil TY395
TY3100
SL2105
SL3100
ZN390
ZN490
Y480
Y485
LL480
LL485
Starting
Motor
JT11or
2JF200 JF131 JF11A 2JF200 JFWBC1
Generator QD1525 or
QD1315D
QDj1309-ky
QDj1401
QD138
QD139
QD100C3
QD1315A
QD1538 or
QDZ157Y
Electrical
Equipments ordinary type
luxury type
single meter combined
meters
Accumulator 3QA-120S 95D31 80Ah
Ammeter C107-30A C107-001 or C107-311A
DYZH-1 STZB-
2,YT/3
Oil Pressure
Meter C103-001/C103-YT-102 C103-0011 or C103-002 or C103-YT312
oil gage C102-001 C102-0011 or C102-003 or C102-002
water
thermometer C101-002 C101-0021 or C101-003 or C101-001
chronometer C105-004 or C105-001
revolution
meter ～C106-005 or C106-001 004
head light （
BL30-Q square light）（）（ZH250-Q combined lints ZH300-Q combined lights
）with turning indicator
rear light SSWD-2 SSWD-2
turning light C202-003 C202-003
Electric Horn C502-Q280 DL129
Fuze Box C503-001
BX2152-2(fuse box)
ZDH-101(central control electric box)
Flasher BX-410/BX-505
adjustor C501-001
starting
switch JK424 or JK290A JK290A

14
3.7 Perfusion capacity
3.8 Air-brake Device
3.9 Parameter of high clearance
Tractor Model
Parameter
HHJM-300H HHJM-350H
Engine Type SL2105BT TY395IT SL3100BT
Dimensio
ns
mm
Length(between the fore bob
weight and the lower lever)
Width
height (to the top of the
exhaust pipe)
2940
1400
2197
3095
1450
2197
usual wheel base of front wheels mm 1250~1550(adjustable)
usual wheel base of rear wheels mm 1250~1700(adjustable)
road
clearance
under the front shaft 520 520
under the gear box 512 512
Type of Air-brake Device Air-off Brake
Capacity of Air Tank L 10
Staring Pressure of Safety Valve kPa 0.65~0.7
Exhaust Opening Clearance of Brake Valve mm 1.5~2
Tractor Model
Part Parameter 300B 350/400A 304B 354/404A
Capacity of Fuel Tank l 35 35 35 35
Final Drive Capacities of Gear-bos,Rear
Axle and Transfer Case l 18.5 18.5 20.2 20.2
Capacity of Fore Drive Axle l —— —— 6.6 6.6
（Capacity of Redirector worm-and
）roller l 0.9 0.9 0.9 0.9
Capacity of Lifter l 8.8 8.8 10 10
Cooling Liquid l 7.2 7.2 7.2 7.2

15
Chapter Four Operation of the Tractor
4.1 Fuel and lubricating oil
See Fig. 4-1 for the fuel and lubricating oil of the tractor.
Fig. 4-1 The fuel and lubricating oil of the tractor
Warning:
1. Before filling fuel into tank, you'd better stop the engine; Smoking is not allowed
during fuel filling and check & repair for fuel system.
2. In no case can gasoline or alcohol be filled in diesel oil. This mixture can lead to
fire or explosion because it is more detonable than pure gasoline in fuel tank. Different
grade oil can't be mixed for use.
●Important:
1. Only very clear fuel can be used. Fuel should be precipitated for above 48
hours and then only the middle and top fuel can be filled into the tank with a filter.
No full fuel for volatilization and screw down the tank cover after filling.
2. Fill fuel before the tank is empty. To fill fuel after the oil is used out in the
supplying system, air must be exhausted from the supplying system firstly.
’
3. Do use a clean filling tool. Don t wash or wipe with diesel oil. Wipe the
Site Season and Envirenmental
Temperature Oil Specification
Fuel Tank （℃）Summer Above 10 （）0#, -10 # solar oil GB/T 252-2000
（℃）Winter Below 10 （）-10# solar oil GB/T 252-2000
Oil pan of engine, hydraulic-
pressure steering gear of lifter, oil
pan of air filter, and injection
pump
℃Below 0 （）20# 40# diesel oil GB/T 5323-1994
℃℃Between 0 -25 （）30# diesel oil GB/T 5323-1994
℃Above 25 （）40# diesel oil GB/T 5323-1994
Gear box, transfer case, front
driving axle, and mechanical
steering device
（℃）Summer Above 10 （）40# diesel oil GB/T 5323-1994
（℃）Winter Below 10 （）30# diesel oil GB/T 5323-1994
Each grease nipple For all seasons ZFG2# complex calcium lubricating grease(
SH0370-1992)
engine, starter, bearing6203-E For all seasons ZFG2# complex calcium lubricating grease(
SH0370-1992)