JUN YI SHU 3WP-500B User manual

3WP-500B Self-propelled boom sprayer
User’s manual
Tiangong Machinery,Ingenious workmanship.
One machine in hand,no worries about farming!
CHENGDU JUN YI SHU INTERNATIONAL TRADE CO.,LTD
Add: Room 3326,33rd Fl,Building 10,No.299 West Chenghua Street,Jinniu District, Chengdu,China.
Tel：[phone] E-mail：[email protected]

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Dear customers,
First of all, thank you for choosing/using the 3WP-500B self propelled boom sprayer manufactured
by our company. I hope our products can bring you good economic benefits, so that you can use this
machine safely and professionally, please read the instruction manual carefully before using it. This
manual is a part of the machine, please keep it properly. It is suggested that the supplier of the new
machine or the second mobile phone should keep relevant documents to prove that the user's manual
and the machine are provided to the user at the same time.
The symbol in this instruction manual is a safety warning symbol, which indicates important
safety information. When the symbol is seen, the possible injury shall be alerted. The information
under the symbol shall be carefully read and other operators shall be informed. It involves the
performance or service life of the machine. If it is not observed, the service performance of the
machine will be reduced or the service life of the machine will be shortened.
Note: potential hazardous situations that may cause low or moderate injury can also be used as
a reminder to avoid unsafe operations that can cause personal injury.
Warning: potentially dangerous situation that may cause death or serious injury.
Danger: a dangerous situation that will cause death or serious injury.
If you have any questions in the use process, please contact our company or product distributor, we
will serve you wholeheartedly. If you have any good opinions and suggestions, please give us your
feedback in time. Thank you!
With the development and progress of science and technology, our products are also constantly
improving and improving without notice. The picture is for reference only, please refer to the real
object! Welcome users to put forward your valuable opinions on the product!
This machine implements the following national standards:
GB 10395.1-2009 <Agricultural and Forestry Machinery Safety Part 1: General>
GB10395.6-2006 <Agricultural and Forestry Tractors and Machinery Safety Technical
Requirements Part 6: Plant Protection Machinery>
GB/T 24677.1-2009 <Technical Specification for Boom Sprayer>

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Directory
Part 1 Product introduction and intended usage....................................................3
Part 2 Safety precautions and warning contents....................................................4
Part 3 Main structure,working principle and technical parameters...................... 8
Part 4 Usage and operation.................................................................................. 11
Part 5 Inspection and maintenance......................................................................22
Part 6 Common failures and troubleshooting......................................................26
Part 7 List of quick-wear parts............................................................................ 26
Part 8 List of accessories..................................................................................... 26
Part 9 Storage,transportation and installation..................................................... 27
Part 10 General rules of warranty policy terms and conditions..........................28

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Part 1 Product introduction and intended usage
3WP-500B self-propelled boom sprayer is the latest development of plant protection machinery in
our company, and its product performance is at the forefront of domestic counterparts. The machine
has the advantages of high degree of automation, convenient use, good traffic-ability, wide
application range, accurate and efficient application of pesticides. It can effectively improve the
utilization rate of pesticides, reduce the amount of pesticides used and pollute the environment. It is
suitable for the application of insecticides, herbicides and bactericides in different growth periods of
different crops such as cotton, soybean, rice, wheat, vegetable oil, corn and vegetables in China And
liquid foliar fertilizer spraying operation; other operations are contrary to the intended use of the
machine. Using this machine to carry on the work, has effectively raised the industry efficiency and
the economic efficiency.
1.This machine is suitable for flat and large land with slope ≤ 11 ° and is not suitable for large stone
block and steep slope.
2.Pesticide or liquid fertilizer must meet relevant standards and be suitable for the crops to be
operated.
3.Except for pesticides, it is forbidden to use acid, alkali and other corrosive working fluids.
4.The water used in spraying should be clean. For example, natural water sources such as river water
should be used after sedimentation and filtration.
5.In use, the requirements specified by the manufacturer shall be strictly observed, and the
conditions for correct use, maintenance and repair as well as the basic requirements for the intended
use shall be strictly observed.
6.The machine can only be operated, maintained and repaired by trained personnel who are familiar
with the characteristics of the machine and have relevant safety operation knowledge.
7.Rules and other safety regulations for preventing accidents must be observed at all times.
8.The user shall be responsible for the reliability reduction, machine damage or personal injury
caused by unauthorized modification of the machine (such as increasing the engine power,
increasing the flow and pressure of the water pump, etc).

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Part 2 Safety precautions and warning contents
This machine is only allowed to be operated by professional training personnel, and be sure to read
the "operation manual" carefully to understand the safety precautions for operating this equipment.
1.92# unleaded gasoline is recommended for the engine of this machine, and SAE10W-30 general
engine oil is recommended for engine oil; full hydraulic drive is adopted for steering system and
boom action of the machine, and 46# anti-wear hydraulic oil is used for the machine. Please do not
mix it with other hydraulic oil with different grades. The temperature of the hydraulic oil tank is
higher when the machine is working. Pay attention to prevent scalding! Air cooled gasoline engine,
pay attention to the hot part of the engine!
2.Before start-up, check whether the oil, water and electricity are normal. If there is insufficient,
please supplement to the normal state, otherwise, it can not be started.
3.When filling fuel and hydraulic oil, the machine must be in the state of flame out, the machine
should be on the stable ground, brake and stop steadily (the parking brake handle is pulled up), and
the ventilation condition is good when refueling; pay attention to fire prevention when refueling!
4.Battery
4.1.Do not overuse the battery, do not start the engine continuously and frequently in a short period
of time, and each time start the engine time should not exceed 5 seconds; in case of engine flame out,
it is recommended to turn off all electrical appliances on the vehicle, so as to avoid exhausting the
battery and affecting the service life of the battery.
4.2.If the battery is not used for a long time, it is recommended to disconnect the negative pole of
the battery, and regularly start the vehicle to charge the battery; when cleaning the battery, it is
forbidden to short circuit the positive and negative poles or ground the positive electrode.
5.Self-propelled boom sprayer should check and obey the traffic rules when driving on roads and
fields. Check whether the lights, loudspeakers, brakes and emergency braking functions are perfect
before the road, so as to ensure that the boom is folded and fixed by brackets, so as to avoid
scratching pedestrians and so on.
6.Before the operation of machines and tools, such as starting, boom lifting, unfolding and folding,
the whistle should be sounded to remind the surrounding personnel to pay attention to safety.

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7.Before the machine works, check the control buttons and master the operation procedures of each
button. After the machine is started, it is not allowed to take other people or pull other machines
except for the driving and operating personnel.
8.Operators should have self-protection awareness and wear protective equipment (clothes, gloves,
shoes, etc.) during operation. Operators are not allowed to drink water, eat, smoke and other
behaviors that may cause pesticide poisoning.
9.Once the operator has symptoms such as discomfort, he should go to the hospital immediately.
During the operation, the driver must concentrate on getting on and off the personnel only after the
machine stops stably (make sure that the parking brake handle is pulled up).
10.During operation, maintenance and operation of boom, no one is allowed to stand within the
swing range of boom and below boom.
11.If there is a fault in the operation, turn off the medicine pump switch or liquid medicine
distribution, and then turn off the engine for inspection. It is not allowed to enter the bottom of the
machine for inspection, maintenance, repair and other operations without flame out.
12.Avoid sudden braking during driving, so as to avoid instability of the machine caused by water
surge in the main medicine box.
13.After the spraying operation is completed, the residual liquid in the medicine box shall be
properly treated according to the instructions provided by the pesticide manufacturer and the
environmental protection requirements, and shall not be discharged at will. Wash the medicine box
and spraying pipe in time, and the operators should take a bath and change clothes immediately to
reduce the harm caused by pesticide residues.
14.The waste water for cleaning the protective equipment of operators shall be treated in accordance
with relevant environmental protection regulations, and shall not be discharged at will. The
operators shall not enter the liquid medicine tank. It is forbidden to use special working fluid.
15.It is forbidden to throw away the waste nozzles and pressure pipes at will to avoid environmental

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pollution caused by residual drugs.
16.When the boom folding mechanism is unfolded and folded, there may be extrusion and shearing
hazards. It is forbidden to stand within 15 meters of the boom diameter when the machine is
working or when the boom is unfolding. Pay special attention to prevent fingers from being pinched
at the manual unfolding hinge.
17.When the wind force is greater than level 2, the operation should be stopped. If the adjustment is
not good, the error will be large, the pesticide will be wasted and the pollution will be caused.
(please operate according to the situation to avoid poisoning due to wind).
18.When replacing and cleaning the filter screen and nozzle, it is necessary to wear gloves. Direct
contact with hands is prohibited.
19.During maintenance, the machine must be parked on a flat and solid ground, and the parking
brake handle should be pulled up.
20.It is forbidden to operate the machine for the elderly, children, pregnant women and those who
have not recovered from the disease.
21.Regularly check the high-pressure hydraulic pipeline and eliminate the hidden danger in time;
pay attention to the warning and safety signs on the machine, and ensure that
If it is damaged or falls off, it should be purchased from the dealer or manufacturer.
22.If the hydraulic pipe hose of the machine fails and needs to be replaced, it is recommended to
contact the professional personnel of the service station for operation.
23.The replaced lubricating oil should be sent to the designated place for treatment.
24.For those who use or operate the sprayer, they should have the ability to:
--Body: good eyesight, good coordination of limbs, ability to operate in use, no
drinking before or during work.
--Psychology: conscientious and responsible, stable operation, able to predict

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and prevent potential safety hazards.
--Operation: carefully read the instruction manual, understand the meaning of safety precautions
and hazard warning signs, and master the knowledge and skills of machine performance,
maintenance and correct operation.
25.Description of safety warning signs:
Only professionals are allowed to operate Prevent moving parts from pinching hands
Read the manual before maintenance Read the manual before use
Fire prevention
Avoid injury
Anti scalding

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Attention: please wear protective equipment when working
The operating system of this machine is provided with operation function marks and safety warning
signs on the cover.
This machine is suitable for paddy field, dry land and other crops, such as wheat, rice, cotton,
tobacco, vegetables and other crops pest control, liquid fertilizer spraying.
Part 3 Main structure,working principle and technical parameters
1.Description of the Mode No.: i.e.
3 WP- 500 B
B is the serial code
Chemical tank capacity,L (Principal parameter)
Boom type (Feature code)
Sprayer (Sub-classification code)
Plant protection machinery (Category code)
Important note: before using the machine, check the engine oil and cooling water,
check the hydraulic oil and fuel, and the oil in the liquid pump box, otherwise the
machine tool will be seriously damaged!

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2.Main structure and working principle:
Fig.1: 3WP-500B Self-propelled boom sprayer structural diagram
1-Traveling system 2-Frame assembly 3-Trunk 4-Chemical tank (with spray system) 5-Boom assembly
6-Driving canopy 7-Driving power system 8-Driving operation system 9-Four bar linkage (Others: hydraulic
operating system)
The self propelled boom sprayer is mainly composed of power system, chassis running system,
hydraulic system, driving operating system and electrical system. The layout of the machine is
shown in Figure 1, and the divider can be selected according to user requirements.
2.1.Power system:
The core components include engine (gasoline), gearbox, clutch, transmission shaft, etc.; the
gasoline engine adopts domestic famous brand engine, 92# unleaded gasoline is recommended for
fuel, and SAE10W-30 general engine oil is recommended for engine oil.
2.2.Chassis travel system:
It is mainly composed of integrated frame, front and rear drive axles and four transmission
outriggers. The front and rear axles and transmission box are all independently developed and

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designed. The track width of front and rear axle can be adjusted (adjustment range: 1550-1750 mm).
2.3.Spray system:
It is mainly composed of medicine box, spray rod, spray pump, pipe controller, sprinkler head,
nozzle, suction pipe, filter screen and other components, and has good atomization effect. The
replacement of the spray pump belt needs to be carried out under the stop of the machine. The
machine is on the stable ground and the clutch is off.
2.4.Fertilizer spreading system (optional accessories):
It mainly includes fertilizer spreader, control cable, etc. the spreader is driven by hydraulic motor,
and the height of fertilizer spreader can be adjusted to ensure uniform fertilization and long service
life.
2.5.Hydraulic system (46×10 hydraulic oil as standard; adjusted according to different regions):
It is mainly composed of gear pump, manual multichannel valve, pipeline and oil cylinder. It is used
for boom lifting, left and right boom unfolding and folding, boom balancing and other actions. It is
easy to operate and has strong expansibility.
2.6.Electrical system (rated voltage DC 12V):
The electrical system is mainly composed of battery, headlamp and headlamp switch.
2.7.Driving canopy and covering parts:
The streamlined design of driving canopy is beautiful and durable; the front cover of engine is made
of steel plate, which has beautiful appearance and high strength; the front windshield is selected.
3.Technical parameters:
Model No.
3WP-500B
Transmission type
Self-propelled (4-wheel driving/4-wheel hydraulic steering)
Working pressure (MPa)
0.2～0.5
Boom length/(Spray width) (mm)
8300/(9000)
Chemical holding tank capacity (L)
500
Engine type
Air-cooled,2-cylinder 4 stroke gasoline engine
Rated output power/Speed (Kw/ R/min)
13.5/3600 (18HP)
Mating hydraulic pump type
Diaphragm pump
Suction capacity (L/min)
60
Rated pressure (MPa)
0-2.5
Battery capacity/Voltage
48Ah/12V*1 set
Tyre model/Air pressure (MPa)
120/90-26AG/3.0MPa

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Travelling Speed (Km/H)
0-20
Standards
GB 10395.1-2009
GB 10395.6-2006
GB/T 24677.1-2009
Part 4 Usage and operation
When the machine is working, the working slope is ≤11° and it is not allowed to operate when the
slope is larger than the specified range, so as to prevent rollover.
1.Start-up and shutdown:
1.1.Start up (the configuration of gasoline engine is shown in Fig.2, please refer to the operation
manual of gasoline engine for details).
Fig 2: Outline structure diagram of gasoline engine
Before starting the gasoline engine, make sure that the oil circuit and circuit are connected, the
transmission lever is in neutral position, and the diaphragm pump clutch is in the separation state.
1.1.1.Pull the choke switch to the "off" position, as shown in Fig.3.
1.1.2.Insert the starting key into the ignition switch, turn the "off" position to the "on" position and
turn on the power supply. Then turn the key to the "start" position and hold it for about 5 seconds to
start the engine. After the engine starts, the start key will quickly return to the "on" position (as
shown in Fig.4).
(Note: the electric starter should not be used for more than 5 seconds each time. If the engine cannot
be started, the ignition switch key must be released and the engine can be started after 10 seconds.)

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1.1.3.After the engine starts normally, push the choke to the "on" position, as shown in Fig.5.
(Note: if the machine can not be started again after normal operation and flame out, please check the
power on state of the main power switch.)
Fig.3: Choke closing indication Fig.4: The ignition switch Fig.5: Choke opening indication
1.2.Check after start-up:
After the engine is running, it should run at low speed for 3-5 minutes, and then run at high speed
after the machine runs normally. Then check whether the engine operates normally, whether there is
abnormal noise, whether the smoke exhaust is normal, whether the clutch and brake pedal are
normal, whether there is oil leakage or water leakage.
1.3.Check before shutdown:
1.3.1.Put the clutch handle of the spray pump in a separate state.
1.3.2.The boom is folded to the transportation state.
1.4.Shutdown:
1.4.1 Release the accelerator pedal and press the clutch pedal.
1.4.2.Put the shift handle in "neutral" and run the engine at low speed for 3-5 minutes.
1.4.3.Pull up the parking brake to prevent slipping after parking. The parking brake handle is on the
right side of the driver's seat. Pull it up to the parking brake state. Press and hold the front button of
the handle and push down the brake handle to release the brake.
1.4.4.Turn the start key to the "off" position to stop the engine; pull out the start key and turn off the
power.
2.Working and operation:
2.1.Machine running (the operating mechanism of the cab is shown in Fig.6, and the gear shifting
schematic diagram of the gearbox is shown in Fig.7.)

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Fig.6
Fig.7
2.1.1.Shift operation method of the shift control lever: first, push the shift control lever to "low gear",
the low gear of the gearbox is engaged, and then push the shift control lever back to the middle “0”
position, pull it along the middle operation direction until it is flush with the "1/2" position, and then
push the shift control lever to the "1/2" position. At this time, the gearbox is in the "1 gear" position.
(if the shift control lever is pushed to the "high and low gear" before entering the gear, and the
operation is carried out according to the above steps, the transmission will be in the "2 gear"
position.) Attention: step on the clutch before shifting.
2.1.2.The gearbox of this machine has 6 forward gears and 2 reverse gears; "low gear" corresponds
Clutch pedal
Sterring wheel
Pipeline controller
Front headlamp
Boom locking handle
Foot brake pedal
Headlamp switch
Accelerator pedal
Hydraulic multi
way valve
Parking brake
Speed control lever
Low gear
Reverse gear 1/2
5/6 Gear
High gear
1/2 Gear
3/4 Gear

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to "1", "3", "5" and "reverse 1" respectively; and "high gear" corresponds to "2", "4", "6" and
"reverse 2" respectively. When the shift lever is operated to shift gears, the increase and decrease
should be carried out step by step, and the upshift is not allowed.
2.1.3.After the machine is started, step on the clutch with the left foot (the clutch is located at the
lower left foot, see Fig.6), shift to the "1 gear", slowly release the clutch, release the parking brake
(see Fig. 6, the parking brake is on the right side of the seat), and step on the accelerator (the
accelerator is on the outside of the right foot, see Fig.6), and the machine starts to walk.
2.2.Four link lifting (Hydraulic multi-way valve-5 units):
The position of the machine is controlled by four links. The four link is located at the front end of
the machine, and the sprayer spray device is mounted on the four connecting rod. The lifting of the
four link rod is controlled by the hydraulic cylinder, and the control handle is located on the right
side of the operator, as shown in Fig.8. The operating handle on the left side of the control valve
controls the lifting of the four connecting rods, pushing them upward to raise them and pressing
them down to lower them (operate according to the sign board). During operation, the hand controls
the handle until the four links are in the required position.
Fig. 8: Schematic diagram of hydraulic multi-way valve (5 units)
2.3.Boom and divider operation:
The boom of this machine is a truss structure. The boom is composed of five sections. The middle
section is fixed. The left and right sections can be expanded and retracted respectively. Controlled
by hydraulic cylinder, the multichannel valve control handle is located at the right front of the
operator, as shown in Fig.9. The left 2 operating handle on the control valve controls the boom
extension of the boom on both sides, and the left 3 handle controls the boom boom boom extension
on both sides. Push the boom upward to extend and press the boom down to retract (operate
Boom
extension
Four link
lifting
Divider
lifting
Balance
cylinder lifting
Boom small
extension

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according to the label). During operation, boom extension and retraction are fast. When in place, pay
attention to control speed to prevent impact and affect boom life. The left 4 handle and left 5 handle
respectively control the automatic balance of the spray bar and the lifting and lowering of the divider,
and operate according to the direction indicated by the arrow on the identification plate.
Fig.9: Conversion of spraying and pumping mode
2.4.Fill water to the chemical tank:
2.4.1.The chemical tank can be injected directly into the water inlet of the top of the cover of the
chemical tank, and can be directly pumped by the spray pump in the clean water source. However,
the switch of the ball valve should be converted according to the Fig.5. (When the filter is cleaned,
the switch is in the pumping mode and can play the role of the main switch of the spray system).
2.4.2.When the spray pump is directly used to add water to the medicine box, the main switch of the
pipeline control valve must be closed.
2.4.3.First injects about 20L of water into the chemical tank, starts the machine, makes the spray
pump work, rinse the filter and the filter screen at the sprinkler head with clean water, and ensures
that the nozzle is free from blockage. If necessary, the sprinkler should be removed in time for
cleaning.
2.4.4.Fill water to the chemical tank according to the needs, and add the liquid chemical (the
concentration of the liquid should be matched according to the instructions of the pesticide
manufacturer, and the liquid chemical should be mixed in the small bucket first).
Spraying mode
Pumping mode

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2.5.Spray control (Pipe controller-5 Way):
As mentioned above, the boom is divided into three sections, which are left, middle and right, which
are independently controlled by three switches. The control device is located on the right side of the
seat, as shown in Fig.6. And two rear wheels are equipped with a compensatory sprinkler, with the
middle part of the sprinkler shared by a spray switch. This pipeline controller is 5-way, and the other
two are standby to connect to spray leg by the user.When the chemical tank is filled, the ball valve is
switched to the spray model (as shown in Fig.5). The control switch is opened (position as the Fig.6),
and the pressure is adjusted to 0.2-0.5 by adjusting the pressure knob. Open the spray switch, pull it
to the inside, control the pipeline, and the left,middle and right three spray switches control the spray
switch of the three segment of the boom on the left,middle and right.
Fig.10: Schematic diagram of pipeline controller
2.6.Determination of spray volume and operating speed:
The amount of spray is related to spray pressure and walking speed. The spray pressure and
operating speed must be determined before operation. The forward speed should not be too fast,
otherwise the turbulence of the machine will affect the spraying uniformity.
The formula for calculating the walking speed: V=40g
QB
Formula: V-sprayer travel speed, unit km/h,g-Spraying quantity of sprayer, unit l/min (total volume
of each sprinkler)
Note: the reference value of single nozzle is 1.2l/min (pressure 0.3MPa)
Reference value of single nozzle 1.38l/min (pressure 0.4MPa)
Reference value of single nozzle 1.56l/min (pressure 0.5MPa)
Pressure meter
Spray switch
L/M/R
Pipeline control
master switch
Pressure
control valve
Spare switch
(For spray legs)

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Q-spray volume per unit area, unit: L/acre (determined by agronomic requirements and pesticide
instructions)
B-Spray width of the sprayer, unit: m
2.7.Adjustment of the spraying quantity of the nozzle and operation:
2.7.1.In addition to adjusting the spray pressure of the whole machine, the spray volume of the
nozzle can also fine tune the single nozzle and rotate the pressure of the sprinkler head.
Adjust the bolt to achieve the best atomization effect.
2.7.2.During the operation, adjust the hand throttle to make the engine speed at 2000 rpm. Expand
the boom, switch the handle of the hydraulic switch, open the handle of the control valve, open the
shunt switch of the control valve according to the operation needs, adjust the pressure to the required
pressure through the pressure regulating switch, and start the operation after confirming that there is
no one in the working area (if equipped with manual throttle).
Note:
1.Pay attention to all kinds of obstacles during operation to prevent damage to boom.
2.The working pressure should not exceed 1.0MPa to avoid reducing the service life of the nozzle and
preventing the hose from bursting.
3.If the nozzle is blocked, shut down the nozzle, remove the nozzle, use a soft special brush (such as
toothbrush) to clean up the sundries. Do not use iron wire, screw driver and other forced treatment,
otherwise the nozzle will be damaged, the spray fog shape, nozzle flow and spray uniformity will be
affected, and the nozzle life will be reduced.
2.7.3.The service life of the matching nozzle of this machine is 400 hours. If it exceeds 400
hours, you should purchase the nozzle with our company or dealer in time. Spraying
continuously beyond the service life of the nozzle will lead to uneven spraying and
even cause pesticide damage.
2.7.4.When the spray is normal, the height of the sprinkler or the crop is about 50 cm, which
can be adjusted with the height of the crop.

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2.7.5.When spraying, there should be a clear indication of the walking route to prevent re
spray or leakage.
2.7.6.The driver must keep the forward speed and working pressure stable.
2.7.7.When different solutions need to be replaced during the working process, open the
discharge valve at the bottom of the chemical tank to discharge the liquid chemicals in the
tank. Go to a safe place that doesn't pollute the environment.
2.8.Boom locking mechanism:
The boom locking mechanism is in the locking state (default state) when the boom is transported.
During field operation, pull the "locking handle" to the driver's direction to pull the locking pin out
of the clamping hole, so that the boom can automatically adjust the balance during the machine
walking. There is a button at the end of the "locking handle". Before pulling the handle, press and
hold the button, and then release the button for positioning.
2.9.Track width adjustment and transmission chain (wheel track adjustment range:1550-1750 mm).
2.9.1.Track width adjustment, as shown in Fig.11 (left front wheel, take front axle track width
adjustment as an example, the same method for rear axle)
Fig.11
1-Transmission box
2-Positioning
3-Movable beam
4-Fixed beam
5-Pressplate
6-U-Bolt
7-Frame rails
8-Fixed tie rod
9-Locating pin
10-Movable tie rod
11-Adjusting nut

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2.9.1.1.Park the machine on a stable ground (such as flat cement ground), tighten the parking
brake, support the longitudinal beam of the frame with a reliable support (can be used with
hydraulic jack), so that the left and right front wheels are about 5cm above the ground. Pay
attention to the support operation during the process, it is not allowed to touch other relevant
parts such as axle "tooth package" and steering rod; block the tire at both ends along the rotation
direction of the two rear wheels with wooden square or brick to prevent the wheel from moving
(block the front wheel in the same way when adjusting the rear wheel). After confirming that
the support is stable, the wheel track adjustment operation can be carried out, and the minimum
track width is the factory.
2.9.1.2.Loosen the nut on the positioning bolt 2 and pull the positioning bolt 2 out of the hole
(tighten clockwise and loosen anticlockwise).
2.9.1.3.Disconnect the split pin on the positioning pin 9 and pull the locating pin 9 out of the
fixed tie rod 8; there are two locating pins on each side, and take out the other positioning pin
with the same method.
2.9.1.4.Loosen the nut on the U-bolt 6 with a wrench. After all the nuts on the U-bolt are
loosened, take down the U-bolt 6 and press plate 5 and put them aside.
2.9.1.5.Pull the transmission box 1 or tire outwards (this step is best operated by two people,
because this part of the parts are heavy), pull the movable beam 3 out of the fixed beam 4. Note
that there are positioning holes on the movable beam 3 and the fixed beam 4, and the distance
between the positioning holes is 50 mm, which can be adjusted according to the actual needs,
and align the holes corresponding to the movable beam and the fixed beam. Insert the
positioning bolt 2 into the corresponding hole of the movable beam and the fixed beam, and
tighten the nut.
2.9.1.6.During the adjustment process, the movable pull rod 10 will also pull out from the fixed
pull rod 8, and the corresponding positioning holes in the two pull rods need to be aligned. If
there is a small amount of deviation, the adjusting nut 11 can be turned for adjustment. Note that
the two adjusting nuts have left and right teeth, which need to be adjusted. (the nut of the right
tooth is tightened clockwise and loosened anticlockwise; the nut of the left tooth is tightened
anticlockwise and the needle is loose in time). Then, insert the positioning pin 9 into the