Massimo MSU 300 User manual

MASSIMO MSU 300
Owner's Manual

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Table of contents
I. Notices
II.Technical parameters
III. Placement drawing for whole vehicle
IV . Inspection before driving
V. Driving operation
VI. Running-in of new vehicle
VII. Maintenance and repair
VIII. Trouble diagnosis and elimination
IX. Screwing moment of important bolts
X. Specification and dosage table for fuel, Lubricating oil and brake liquid
XI. Circuit diagram

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I、Notes
1. Obey the local law and regulations when driving. Meanwhile for safety,
please follow the stipulation as bellow:
(1) Must be specially trained and guided before driving.
(2) This is a off-road vehicle, please do not drive it on public road (unless the
local law, regulation is permitted).
(3) Anyone under 16 years old is not allowed to drive the vehicle.
(4) Do not operate vehicle after consuming drugs or alcohol.
(5) Fasten the safety belt, and put on protective clothes, helmet and so on.
(6) Over-speeding is not allowed or the driving speed exceeds the driver’s skill to
control of the driving conditions.
(7) Extra passengers per seat are not allowed. One seat allows one person.
2. Please read this operating instruction carefully before using this vehicle, and
drive, check and repair it by the requirement in this manual to keep vehicle in proper
technical status and prolong its lifetime use.
3. Initial running for 1000km of vehicle is period. In this period, it is necessary
to follow regulations of period (see the chapter—for new vehicle). After period
expires, it is necessary to make vehicle maintenance by regulation.
4. Unit comes with one year power train warranty of vehicle. (talk to the place
you bought your unit for more warranty information)
5. Damaged parts in following items could not be repaired freely, they should
be paid:
(1) Damages caused by wrong usage, maintenance and storage which do not
accord with this operating instruction.
(2) Damages caused by force, chemical substance, bad substance or other natural
disasters.
(3) Consumed parts in normal usage, such as: bulbs, fuse (pipe), air filter core,
engine oil filter core, gasoline filter core, brake friction sheet (disc,drum), spark plug,
tire, transmission belt, appliqué, rubber parts, standard fastening parts, lubricating oil
(grease), coolant, brake liquid and so on.
(4) Damages caused by improper assembly or repair, such as self-dismantling or
changing this vehicle without approval of our company and chartered sale(repair)
store, or sending chartered sale(repair) store for repair which is not appointed by our
company.
(5) Vehicles which could not provide warrant card or vehicle purchase credential.
(6) Malfunctions caused by using other parts or accessories which are not
provided by our company.
(7) Various overhead expenses caused by repairing vehicle(such as telephone fee,
vehicle fare, freightage, work missing fee, repair fee out of repair store appointed by

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our company).
(8) Abnormal abrasions and damages caused by wrong using gasoline,
lubricating oil, coolant and brake liquid.
(9) Feeling phenomenon which could not influence mechanical performance,
such as: noise, vibration, heat and so on.
(10) Damages caused by that you do not check and maintain vehicle periodically
by our requirements.
II、Technical parameters
(I)、Common technical data
1、Mass parameters(kg)
Mass of whole equipments(not including driver)：540Kg
Front shaft：240Kg
Rear shaft：300Kg
2、Dimension parameter(mm)
Total length×total width×total height:2630×1230×1890
Minimal clearance apart from ground：183
Wheelbase：1800
Tread：front wheel：1058 rear wheel：1070
Approach angle(°)：60
Removed angle(°)：85
(II)、Using data
1、High running speed(km/h)：53
2、Minimum turn around semi-diameter(m)：4.2
3、Brake performance (No-load brake distance m)。
When V０=20km/h：2.5
When V０=30km/h：5.4
When V０=40km/h：9.5
When V０=50km/h：14.6
4、0—50Km/h accelerating time（S）： 15
Time of start running(the used time from stop to run 200m distance) (S): ≤18s
Accelerating time(the used time run 200m at 30km/h) (S): ≤14s
5. Oil consumption for 100 kilometers (L)：6（when speed is 40km/h）
6. Exhaust：
Reach Euro II exhaust standard.
7. Limit load of good box：300Kg
(III)、Engine
Type：VM173MN

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Form：four-stroke、water cooling、single cylinder horizontal type、roof valve、
Carburetor type.
Cylinder diameter(mm)：72.75
Travel(mm)：66.8
Cylinder volume(mL)：278
Compressed ratio：10：1
Exhaust quantity of engine(mL)：278
Maximal power (kw/r/min)：16/6500
Maximal torque(N·m/r/min)：23/5500
Rated power (kw/r/min)：13.8/6500
Lowest fuel consuming rate (g/Kw·h)：340
Idling speed (r/min)：1500±10%
Ignition type：TCI（digital）
Start type：electronic start
Fuel category：RQ-93 lead-free gasoline
Lubricating oil category：SAE 15W—40
Engraved position of factory number：Upper surface on rear part of left
crankcase
Ignition ahead angle(°/r/min)：10/1500
32/1500
Lubricating type：Pressure and splash lubricating type
Engine oil pump type：trochoid type
Water pump type：centrifugal type
Carburetor type：Y28V5
Magnetoelectrical machine type：TCI exterior spring flywheel magnetoelectrical
machine（Power supply voltage 12V）
Spark plug type：DR8EA（NGK）
Clutch type：dry type、automatic centrifugal type
Automatic shift ratio：2.20~0.88∶1
(IV)、Chassis
1. Clutch and transmission：tapered plate belt transmission, stepless shift
2. Reverse gear device of main transmission：
Main transmission：High Speed Gear：19/27
Low Speed Gear：27/19
Reverse Gear：22/15
3. Driving type：4×2 rear wheel drive; shaft transmission。
4. Suspension：
Front suspension：swing arm type independent suspension.
Rear suspension：whole type rear axle、absorber type non-independent

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suspension。
5. Wheel alignment parameter：
Front wheel camber：1°±45′
Main pin K.P.I：13°
Main pin castor：4±1°
Front toe-in：2—5mm
6. Tire：
Front wheel：Front wheel type 25×8.00—12. Air charging pressure：
148Kpa (21PSI)
Rear wheel：Tire type 25×10.00—12 Air charging pressure：
197Kpa (28PSI)
7. Steering organization：
Adopt gear rack type redirector, total circle number of steering plate：3.75；
total swing angle of steering wheel：70°.
The maximum left turning angle of left wheel: 35°.
The maximum right turning angle of right wheel: 35°.
8. Arrester：
Running arrester adopts front and rear placement dual-pipeline hydraulic
pressure brake system, front and rear wheels adopt drum type arrester. And parking
arrester adopts mechanical transmission organization to work on rear wheels.
9. Goods box overturn roof and self-saving winch：
Good box could adopt overturn roof structure and equip self-saving winch
to drag itself if relapsing into loose sludge.
(V)、Electric apparatuses
1. Pipeline system：pipeline system adopts single-line system，Minus ground
strap，pipeline voltage is 12V。
2. Generator：type is FM169，rated power is 300W。
3. Storage cell：voltage is 12V，capacity is 24A·h。
4. Starting engine type：12V forever magnetic DC electric engine。

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III、Placement drawing for whole vehicle
1、Engine hood 2、Indicator 3、Front headlight
4、Bump 5、Front tire 6、Seats
7、Safety Belt 8、Side board 9、Fuel tank（cap）
10、Rear fender 11、Goods box 12、Reinforce pole
13、Head Rest 14、Top cover 15、Steering Wheel
16、Canopy Frame

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Side drawing for engine
1、CTV case 2、Oil intake of gear case 3、Flange of transmission shaft
4、Generator 5、Carburetor 6、Starter
7、Idling speed electromagnetic valve 8、Spark plug
9、Oil intake of engine

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VIN code position Position of engine number (on CVT)
Oil intake of engine Engine oil dipstick
Oil drain plug of engine（under the engine）Intake of gear case
Fuel box cover (on the left side board) Coolant & brake fluid intake
Warning：Engine oil quantity should be between upper and lower position, over more or
less oil would burn out or damage engine.
Warning：Oil drain plug of engine should be tightened，otherwise engine would burned
for oil leakage.
齿轮箱油应按规定的牌号和量添加，过多会导致漏油，过少会烧毁齿轮箱。

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Oil checking hole of main reducer
Oil intake of transmission
Warning：Oil in main reducer should be filled by prescriptive trademark.
Oil quantity in main reducer should equal to oil intake orifice ,over more will
incur oil leakage, and over less will burn out main reducer.
Warning：Oil quantity in Transmission should be added by stipulation, much more will cause
leakage, less will be burnned out..
Warning：it is very dangerous to unscrew radiator when engine is hot，for steam
and water will spurt by the pressure to hurt people at this time. It is necessary to
unscrew radiator cover after engine becomes cool.
Warning: Please fill up the brake liquid according to the stipulated trademark and
type. Can not mix the different brake liquid from different makers. Keep the
liquid level in proper position, otherwise will cause accident.

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Fuse box, Relay (under the seat of driver) Relay Display
1-Horn relay. 2-Low beam relay.
3-High beam relay. 4-Flashing relay
Fuse Display
IV、check before drive
1Check to make sure your engine isn't leaking, as oil, cooling fluid, fuel, and lube.
2．Check the height of engine oil, brake liquid and cooling liquid, if necessary, add
some.
3．Check the air pressure in tire.
4. Check the function of safety belt.
5. Check whether steering transmission organization has been loosened.
6. Check whether engine bracket, bolts, and bolts of transmission system and running
system have loosened or fallen off.
7. When starting engine, listen and check whether there is any abnormal noise, and
observe whether each instrument is normal.
8. Check whether steering is flexible and reliable; check brake free travel
function(including parking brake).
9. Check whether lighting system (steering light, brake light, warning light, small
light, dipped headlight, high beam and so on) is complete and effective.
10. Check whether vehicle box overturn roof and self-saving winch could work

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normally.
11. Check fuel quantity.
might happened
V、Driving operation
1. Safety driving notes for farmer vehicle
To guarantee your driving safe, please accord with following items：
—Tie safety belt—
Safety belt could avoid you are thrown out of vehicle when happening sudden
swerve and accidents, and guarantee running safe effectively.
—Inspection before driving —
Careful inspection before driving is necessary to guarantee running safe and enjoy
driving pleasure.
—Be familiar with your farmer vehicle—
Warning：
(1) Driver must accord with the legal driving age and requirement. The special
training is needed. Please connect with your distributor about the training.
(2) Fasten the safety belt before driving.
(3) Driver should buy person safety insurance。
(4) Driver should limit the speed and try his best to keep vehicle run at economical
speed (30—40km/h). Overspeed driving will shorten the longevity of vehicle and
also easily cause accident get people injured.
(5) Driver should control speed strictly by the size of swerve when turn around
(the highest speed could not exceed 20Km/h).
(6) Do not load the goods over the height of the rack. Loading weight must be
within 300kg. The loadings must be fastened if it is higher than box, in order to
avoid being hurt some one by the goods rushing forward when driving or stopping.
(7) When rotation speed of engine reaches to 7500r/min, at this movement the
exhaust pipe blows out, the engine speed getting unstable, power reduced, the
rotation speed can not increased, all these phenomenons might happened.
Meanwhile this makes fuel consumption and displacement increased. These is
because the speed linitation is in active. This is in normal control function. When
driving XY300 2WD vehicle, the max speed must controled bellow 50km/h.
(8) The coolant has been filled up in cooling system. But the coolant only can be
used above -35 degree centigrade at the situation of environment tempreture.
(9) The sudden brake is not allowed when the speed is over 50km/h (except the
emergency situation). Otherwise it might cause the vehicle damaged, or sideslip or
turn over, or even cause injury to the people.
(10) The stepless automatic clutch used on engine. H gear is used on the common
road. Gear change is not necessary in the most time. L gear is used on the rough
road or when need bigger torque (when clibmbing the steep slope). Make sure
the vehicle must be stopped when change gear, in case to protect the transmission
system and gears.

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Your driving technique and mechanical common sense are base of safety driving.
We advise you practice driving on open location before driving on road.
—Accord with highway code —
According with highway code will guarantee your running safe furthest.
—It is necessary to keep aware when driving in rain—
Rain weather will drop the brake performance and operation performance of your
farmer vehicle, and bring bad influence for your running safe, so it is necessary to
note.
2. Operation
①Key
Keys for this vehicle have two kinds that are ignition switch key and oil box
key, each has two, one of them should be preserved carefully for spare.
②Ignition switch
Ignition switch has four positions：
“OFF”（close）position：All circuits except instrument, brake light and
loudspeaker locate turnoff status.
“ACC”position：lights, MP3, horn is on.
“ON”position：All circuit is on, except start motor. The engine is ready to
be started and also could keep engine running.
“START”position：When gear is in “N”position, turn the key to start
position, the engine started, then loosen hand, let key goes back to “ON”
position.
③Meter
Waring: Engine only can be started when gear is in “N”position.

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（ａ）、Speedometer 4：show running speed.
（ｂ）、Odometer 9：show accumulated running total mileages（for its
structure, it will show accumulated running total mileages when
stepping down accelerator pedal on neutral position）.
（ｃ）、High beam indicating light 8：When high beam of headlight is
lightened, high beam indicating light will lighten.
（ｄ）、Indicating light 2, 5：When steering lights to left and right are
lightened, corresponding steering indicating lights on instrument will
flash. When warning light is lightened, left and right steering
indicating light will flash at the same time.
（ｅ）、Fuel level meter 6：show fuel quantity.
（ｆ）、Thermometer 1：show the temperature of coolant of engine.
（g）、 Gear display 3: The relative displays (L-low speed, H-high speed,
N-neutral, R-reverse gear) will be lit.
（h）、 Brake liquid level alarm light 7: The alarm light lit when the liquid
level is lower (need to be fill up).
④Main switch of lamplight
（ａ）、When ignition switch is at “ACC”or “ON” position, press down “ ”
to first step, front small light, meter’s light and rear small light on.
Press down “ ” to second step, front headlight, meter’s light and
rear small light on.
（ｂ）、When ignition switch is at “ACC”or “ON”position, press down “ ”
to second step, and also “ ” down, high beam, meter’s light and

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rear small light on. Press down “ ”, low beam, meter’s light and
rear small light on.
（ｃ）、When ignition switch is at “ON”, “ACC”or “OFF”position, press
down “ ” , the emergency light on.
（ｄ）、When ignition switch is at “ACC”or “ON” position , press down
“ ” or “ ”, indicator lights accordingly.
（ｅ）、When ignition switch is at “ACC”or “ON” position, step down the
brake pedal, the brake light on.
⑤Horn button
Press down loudspeaker button on steering wheel (anyone of these two),
loudspeaker will hoot.
⑥Accelerator pedal and brake pedal
At the front of driver’s right foot, the left is brake pedal, farmer vehicle will
start or accelerate by stepping it when shift handle is at “D” position or “R”
position.
⑦Parking brake handle
When pulling up parking brake handle, rear wheels will produce brake force
to prevent vehicle from sliding when vehicle is parked.
Warning：It is necessary to strain parking brake handle when vehicle is parked to
prevent sliding; and it is necessary to press down the front button of parking brake
to drop handle down when running; it could not use parking brake when running
arrester is used(except emergency).

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警告：车辆在停放时必须拉紧驻车制动手柄，防止车辆滑溜；行车时必须按
车制动时前头的按钮，将手柄下放到低；不可装驻车制动当行车制动器使用（紧
⑧Dumping box and self-saving winch
When it is necessary to discharge good, at first, open the rear door of cargo box,
then open towing and turn main switch to“ON”position, and press down“UP”
on “TRAILER”conversion switch on the upside of instrument, at this time,
cargo box will over turn backwards; and return will stop after relinquishing; while
press down “DOWN”on “TRAILER”conversion switch on the upside of
instrument, cargo box will drop, and return will stop after relinquishing.
When farmer vehicle stuck into the muddy area and could not run out, you
could make self-saving measure by front fixity or piling. At this time, open the
drag hoof of towing rope, and turn towing and overturn main switch to “O”
position, then press down “IN”position and “OUT”position on “WINCH”
conversion switch on the upside of instrument, at this time, winch steel wire rope
will “shrink”and “expand”; return will stop after relinquishing.
⑨Cigarette lighter
The cigarette lighter installed on vehicle and also can be used as mobile
phone charger or other small electric units’power.
⑩Windshield Wiper（Optional）
There are 2 speeds “low”and “high”when turn the switch clockwise. Turn
Warning: When cargo box overturn or winch self-saving work has ended, it is
necessary to turn towing and overturn main switch to “OFF”switch to avoid
wasting electricity and incurring unnecessary loss.
Note: This inlet is 12V DC. Please check the voltage which is suitable for your units.

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anticlockwise is “Stop”.
Cigarette light Windshield wiper switch
⑾MP3 player
Turn the ignition switch to “ON”or “ACC”position, also press down the
button in the middle of MP3 player, you might listen to the music. Also you can listen
the msic saved in U disc through USB interface fixed under the passenger seat.
MP3 Player Screw of idle speed adjuster
⑿Idle speed adjusting
For the engine will not be shut down when suddenly loose the accelerater, please
adjust the idel speed to 1500rpm, ±10%r/min.
VI、Running-in of new vehicle
Cooperation between the surfaces of each part of new vehicle is locating
adjusting and running-in phase, for surface friction of each part is big, the result of
running-in quality influences greatly using lifetime of farmer vehicle. In running-in
period, please implement strictly the regulation about speed limit, load limit and
periodic maintenance to reduce
1. Highest speed:
Running mileage
Highest limit speed
Initial 800Km
30Km/h
800～1600Km
40Km/h
Exceed 1600Km
50Km/h

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2. Accelerate and decelerate
It is necessary to avoid sudden and frequent acceleration and deceleration
and keep running in even speed in running-in period.
3. Heating engine before running
In running-in period, it is necessary to run at idling speed for 3-5 minutes
after starting engine to pre-heat engine, then start running after lubricating oil
flows on each friction surface.
4. Note engine cooling
In running-in period, it is necessary to note water temperature in engine to
avoid running in low temperature for long time and in high temperature
without water, this will strengthen abrasion and drag cylinder.
5. Check the loosing situation on each linking part of all bolts usually
For fastening bolts on each part of new vehicle are easy to loosen, it is
necessary to note the fixed situation of each bolt, especially the bolts of
transmission organization and fixed equipment.
6. First maintenance of vehicle
In running-in period, after running for 1000km, it is necessary to complete
first maintenance, maintenance details could refer to “Maintenance and
repair”.
警告：首次保养对发挥农夫车最好性能，延长其使用寿命和确保安全都非
VII、Maintenance and repair
1、First maintenance item table
Sequence
number
Category
Checking item
Adjusting content
1
Engine
Change engine oil and oil
filter
Adjust idling speed ：
1500±10% listen whether
there is any abnormal
noise in engine; clean air
filter core
2
Brake
Front and rear wheel brake;
parking brake; brake
performance
Brake liquid height ；
Brake pedal free travel：
20～30mm；Travel of
parking arrester is 2～3
Warning：First maintenance is necessary to implement best performance of
farmer vehicle, prolong using lifetime and insure safe.

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gears
3
Steering
organization
Operate flexibly without any
block phenomenon
Fastening bolts on
redirector and steering
transmission organization
which could influence
safety performance
4
Transmission
box
Stepless shift performance
and belt abrasion
5
Tire
Tire pressure and thread
depth
Tire pressure:
F. tire: 148kpa (21PSI)
R. tire: 197kpa (28PSI)
Check front tie-in：2～
5mm
6
Transmission
organization
Whether the bolts, flange
nuts on transmission shaft
and the bolts on main driver
are tightened.
7
Lamplight
Illumination and signal
Every kind of lamplights,
signal switches and
buttons, etc
8
Battery
Liquid height in storage
cell(except the
maintenance-free battery)
Liquid surface should be
between upper and lower
limit marked, it is
necessary to note only
distilled water could be
filled in storage cell
9
Mwter
Display is normal and correct
10
Dump bed
and
self-saving
winch
Work normally
2、Routine maintenance item table (checked by consumer)

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Sequence
number
Category
Checking item
Adjusting content
1
Engine
Engine oil level; leakage
situation, cooling water level
Oil level is between
upper and lower limit;
engine oil, cooling
liquid, fuel and other
mediums do not have
any leakage; clean
empty filter periodically
2
Steering
organization
Operate flexibly without any
block phenomenon
Each linking drag pole,
ball head and locking
nut are tightened.
3
Brake
Brake liquid height; brake
pedal travel and free travel;
brake performance
4
Tire
Air pressure, thread, crack
and wound
Tire pressure:
F. tire: 148kpa (21PSI)
R. tire: 197kpa (28PSI)
Thread depth ：no less
than 1.6mm
5
Lamplight
Illumination, signal and
loudspeaker
Every kind of
lamplights, signal
switches and buttons,
etc
6
Battery
Liquid height in storage
cell(except the
maintenance-free battery)
Liquid surface should be
between upper and
lower limit marked, it is
necessary to note only
distilled water could be
filled in storage cell
7
Instrument
Display is normal and correct
8
Dump Bed
and
self-saving
winch
Work normally