View the User Manual - Star Electric Vehicles

View the User Manual - Star Electric Vehicles
Owner’s Manual and Service Guide
C-Series: AC48-2-AC-UB-L-D and AC48-2-AC-UB-S-D
February 2015
Table of Contents
Introduction
3
Vehicle Specifications
4
Important Labels
5
Operation System
6
Operational Process
8
Rules for Safe Operation
11
Maintenance
12
Storage
24
Troubleshooting
25
2
Introduction
Thanks for purchasing a STAR EV C-Series. For your better use, please read through this manual before operate the
C-Series to avoid any possible damage due to improper operation, and keep it after reading for future reference.
Important Information: Important information is showed in following way in this manual to arouse your attention:
WARNING
Fail to follow Warning instructions could result in severe injury or death to the vehicle occupants, bystanders or
persons inspecting or repairing the vehicle.
CAUTION
Fail to follow Caution instructions could cause damage to the vehicle.
Special Notice:
Because the seat AND backrest wrapping film may stick to the seat vinyl and cause seat vinyl fading or stained,
please remove the seat & backrest wrapping film when you start to use your STAR.
3
Vehicle Specifications
C-Series Standard
C-Series Long
Passengers
2
2
Motor
7 HP
7 HP
Battery group
Controller Power (amps)
Maximum speed (mph)
Cargo capacity (lbs)
Dimensions (in)
Weight including batteries
(lbs)
Ground Clearance (in)
Turing Radius (ft)
Wheelbase (in)
Climbing capacity
Front suspension
Rear suspension
Steering system
Brake system
Tire size
Tire pressure (psi)
8 x 6V, Trojan T105
8 x 6V, Trojan T105
450 Amp, AC Curtis
450 Amp, AC Curtis
19.5 (20-25 LSV)
19.5 (20-25 LSV)
550
1100
105 x 46.5 x 74
138 x 47 x 75
1710
2300
5
5
11.5
15
67
96
20%
Independent A-arm with coil
over shocks
Leaf spring and shock
20%
Independent A-arm with coil
over shocks
Leaf spring and shock
Rack and pinion
Rack and pinion
4-wheel hydraulic disc
205 / 50 / 10, 6-ply DOT
32
4
4-wheel hydraulic disc
205 / 50 / 10, 6-ply DOT
32
Important Labels
WARNING Please read the following labels carefully before operating the vehicle, and promptly replace any labels
which become unreadable or removed. “Security Warning” label under the dashboard:
“Warning” label under the dashboard:
“Warning” label besides the parking-brake handle:
5
Operation System
Schematic Figure of Operation System
Turn Signal Switch
Functions of Operating System
Power Key: Controls the power supply of the whole vehicle. When the key is inserted and turned clockwise, it will
switch on lights, horn and the control system; when the key is turned back, the power will be switched off.
6
Acceleration Pedal: Controls the speed. It should be depressed slowly. The vehicle speeds up with the gradual
depressing, and reaches full speed when the pedal is stepped down completely. The vehicle slows down when the
pedal being released gradually. When the pedal is fully released, electric brake works.
Brake pedal: Decelerates and stops the vehicle.
F&R switch: This switch is a three-position button. Pressing the upper part causes the vehicle to move forwards
while depressing the lower part causes the golf car move in reverse, and the middle is neutral.
NOTE: The buzzer will beep when the Reverse is pressed.
Parking brake Lever: Park and brake the vehicle.
Steering Wheel: Controls the driving direction.
Headlight Switch: Controls the headlights.
Turn Signal Switch: Controls the turning signal.
Wiper & Horn Switch: Controls the wiper and horn.
Emergency Stop Switch : Stops the power of the whole vehicle in case of an emergency.
NOTE: Before you switch on the vehicle, please always check the status of this switch to make sure that it is on
OFF position.
Digital Combination meter: Please refer to following figure:
7
Operational Process
Starting the vehicle
•
•
•
•
Select F for Forward or R for Reverse from F&R Switch.
Switch on Power Key.
Release the Parking Brake lever.
Step down on the Acceleration Pedal smoothly.
WARNING
•
If you switch on Power Key first before selecting Forward or Reverse on F&R switch, the vehicle will not
run. In this case, please switch off Power Key, select Forward or Reverse, and step down on the
•
Acceleration Pedal to start the vehicle.
If you step down on the acceleration pedal before switching on the power key, the vehicle will not run.
Stopping the Vehicle
•
•
•
•
•
Step on the Brake Pedal to decelerate the vehicle until it stops completely and shift F&R switch to the
Neutral position.
Engage the parking brake lever to park the vehicle.
Release the service brake.
Switch off all lights.
Switch off the power and take out the key.
8
Charging the batteries
CAUTION
•
•
•
There are two different kinds of charger for you to choose: an exterior charger and a built in (on-board)
charger. Before you use the charger, please read the charger operation manual.
Explosive hydrogen gas is produced while the batteries are charged. Only charge in well-ventilated areas.
Before using the charger, please check if the battery charger you are using is correctly rated as per your
•
local AC electricity network.
•
arc can occur which may cause an explosion.
•
•
•
Do not disconnect the DC output cord from the battery receptacle when the charger is ON. In this case an
It is prohibited to open the housing of the charger.
Only a qualified electrician is allowed to open the housing of the charger.
The charger should be stored in safe and dry room with good ventilation.
The charger should be packed properly if not used for long time.
Charging procedure
•
•
Turn off the power of the whole vehicle.
Exterior charger:
o Connect charger to the DC receptacle on the vehicle.
 Connect the charger to AC power.
 Turn on the charger.
•
o Turn off the charger when the batteries are fully charged. Disconnect the charger from AC power
first, then disconnect the charger with DC receptacle.
Onboard (built-in) charger:
o Connect the charger(s) with AC power.
o Turn on the charger(s).
9
o Turn off the charger(s) when the batteries are fully charged, and disconnect the charger(s) with AC
power.
10
Rules for Safe Operation
The driver should have a good knowledge of the operation system of the vehicle and its features. Follow the rules
for safe operation.
WARNING
•
•
•
•
•
Drive the vehicle off road unless it is a street legal vehicle (NEV/LSV).
The vehicle cannot be overloaded. Overloading the vehicle can cause damage to the motor and loss of
control of the vehicle.
Unqualified persons are prohibited to drive the vehicle.
Make sure this vehicle runs in its rated climbing ability.
Don’t overtake other vehicles at crossroads, blind spots or in other dangerous areas.
WHILE OPERATING THE VEHICLE
•
•
•
•
•
•
•
•
•
Keep your entire body inside the vehicle, keep seated and holding on while the vehicle is moving.
Do not start the vehicle until all occupants are securely seated.
Keep your hands on the steering wheel and your eyes on the path ahead.
Always reverse the vehicle slowly and watch the back carefully.
Avoid starting and stopping suddenly.
Avoid turning the vehicle too sharply at high speeds.
Always drive slowly up and down slopes.
Do not make any modification or addition which may affect the capacity or safety of the vehicle.
Children are not allowed to play in the vehicle. Children should be seated between adults and protected
while the vehicle is moving.
11
Maintenance
Users should perform regular maintenance as follows.
Battery Maintenance
WARNING
Battery electrolyte is poisonous and dangerous, and may cause severe burns, injury, etc. Always wear
protective clothing, gloves, and goggles when handling batteries, electrolyte, and charging your battery.
KEEP IT OUT OF REACH OF CHILDREN.
Cleaning
•
The exterior of the battery, connection wires and bolts should always be kept clean and dry. When
cleaning, make sure all vent caps are tightly in place. Clean the battery top with a cloth or brush and
solution of baking soda and water. When cleaning, do not allow any cleaning solution or other foreign
•
•
matter to get inside the battery. This should be done every week.
Clean battery terminals and the inside of cable clamps using a post and clamp cleaner. Clean terminals will
have a bright metallic shine. This should be done as needed.
Reconnect the clamps to the terminals and thinly coat them with petroleum jelly (Vaseline) to prevent
corrosion.
WARNING
Before you disconnect any battery cable from any terminal on the battery, please always remove the
power by disconnecting the main battery cable from the controller.
Checking the terminals and nuts
The connection of the battery should always be kept in good condition. Check weekly on whether any battery
cable terminal or nut has become loose in order to prevent sparks or damage to terminals. Check weekly on
whether any battery cable is damaged, and a damaged battery cable should be replaced immediately.
12
Foreign matter
Do not place any objects on the battery and do not connect the positive pole to the negative pole. This may cause a
short circuit, dangerous sparking or damage to the battery or injury to your body.
Recharging
•
As long as you use the vehicle, regardless of how long you have used it, the battery should be recharged
fully on the same day. Note: the lead-acid battery does not develop a memory, so it need not be fully
•
discharged before recharging.
•
After that, the battery should be fully recharged every 2 weeks.
If the vehicle is going to be kept unused for a certain long time, the battery should be fully recharged first.
When driving, the driver should be always aware of the drop level of the battery power from the battery
power meter, any drop means the battery power is diminishing. The driver should estimate the distance
needed to be taken, and recharge the battery at a proper time in case that the vehicle cannot get back to
the recharging station in time for recharging.
WARNING
Make sure the battery is recharged before the battery power meter shows 20% power is left inside the battery. An
over-discharged battery will have a shortened service life and will make recharging difficult.
WARNING
During recharging, the vehicle should be parked in a well-ventilated area with the fill caps tightly secured. Keep far
away from any flame and sparks to avoid any explosion or fire that could cause physical injury or damage to the
property.
During recharging, always lift the seat bottom to keep the battery compartment open to the air.
13
Watering
Flooded batteries need water. More importantly, watering must be done at the right time and in the right amount
or else the battery's performance and longevity suffers. Water should always be added after fully charging the
battery. Prior to charging, there should be enough water to cover the plates. If the battery has been discharged
partially or fully, the water level should also be above the plates. Keeping the water at the correct level after a full
charge will prevent having to worry about the water level at a different state of charge. Depending on the local
climate, charging methods, application, etc., it is recommended that batteries be checked once a month.
Important things to remember:
•
•
•
Do not let the plates get exposed to air. This will damage (corrode) the plates.
Do not fill the water level in the filling well to the cap. This most likely will cause the battery to overflow
acid, consequently losing capacity and causing a corrosion.
Do not use water with a high mineral content. Use distilled or de-ionized water only.
WARNING: The electrolyte is a solution of acid and water so skin contact should be avoided.
Watering procedure:
•
•
•
•
•
•
•
•
Open the vent caps and look inside the fill wells.
Check electrolyte level; the minimum level is at the top of the plates.
If necessary, add just enough water to cover the plates at this time.
Put batteries on a complete charge before adding any additional water (refer to the Charging section).
Once charging is completed, open the vent caps and look inside the fill wells.
Add water until the electrolyte level is 1/8" below the bottom of the fill well.
A piece of rubber can be used safely as a dipstick to help determine this level.
Clean, replace, and tighten all vent caps.
CAUTION: Never add acid to a battery.
14
Testing
Visual inspection alone is not sufficient to determine the overall health of the battery. Both open-circuit voltage
and specific gravity readings can give a good indication of the battery's charge level, age, and health. Routine
voltage and gravity checks will not only show the state of charge but also help spot signs of improper pro, such as
undercharging and over-watering, and possibly even locate a bad or weak battery. The following steps outline
how to properly perform routine voltage and specific gravity testing on batteries.
Specific Gravity Test (Flooded batteries only)
•
Do not add water at this time.
•
Fill and drain the hydrometer 2 to 4 times before pulling out a sample.
•
There should be enough sample electrolyte in the hydrometer to completely support the float.
•
Take a reading, record it, and return the electrolyte back to the cell.
•
To check another cell, repeat the 3 steps above.
•
Check all cells in the battery.
•
Replace the vent caps and wipe off any electrolyte that might have been spilled.
•
Correct the readings to 80˚ F: Add .004 to readings for every 10˚ above 80˚ F Subtract .004 for every 10˚
below 80˚ F.
•
Compare the readings.
•
Check the state of charge using Table 1.
The readings should be at or above the factory specification of 1.277 +/- .007. If any specific gravity readings
register low, then follow the steps below.
•
•
•
Check and record voltage level(s).
Put battery(s) on a complete charge.
Take specific gravity readings again.
If any specific gravity readings still register low then follow the steps below.
•
•
•
Check voltage level(s).
Perform equalization charge. Refer to the Equalizing section for the proper procedure.
Take specific gravity readings again.
15
If any specific gravity reading still registers lower than the factory specification of 1.277+/- .007 then one or
more of the following conditions may exist:
1. The battery is old and approaching the end of its life.
2. The battery was left in a state of discharge too long.
3. Electrolyte was lost due to spillage or overflow.
4. A weak or bad cell is developing.
5. Battery was watered excessively previous to testing.
Batteries in conditions 1 - 4 should be taken to a specialist for further evaluation or retired from service.
Open-Circuit Voltage Test
For accurate voltage readings, batteries must remain idle (no charging, no discharging) for at least 6 hours,
preferably 24 hours.
•
•
•
•
Disconnect all loads from the batteries.
Measure the voltage using a DC voltmeter.
Check the state of charge with Table 1.
Charge the battery if it registers 0% to 70% charged.
If battery registers below the Table 1 values, the following conditions may exist:
•
•
The battery was left in a state of discharge too long.
The battery has a bad cell.
Batteries in these conditions should be taken to a specialist for further evaluation or retired from service.
16
State of charge as related to specific gravity and open circuit voltage
Percentage of
Charge
Specific Gravity
Corrected to
80˚ F
Open-Circuit Voltage
6V
8V
12V
24V
36V
48V
100
1.277
6.37
8.49
12.73
25.46
38.20
50.93
80
1.238
6.25
8.33
12.50
25.00
37.49
49.99
90
70
60
50
40
30
20
10
1.258
1.217
1.195
1.172
1.148
1.124
1.098
1.073
6.31
6.19
6.12
6.05
5.98
5.91
5.83
5.75
8.41
12.62
8.25
12.37
8.16
12.24
8.07
12.10
7.97
11.96
7.88
11.81
7.77
11.66
7.67
11.51
25.24
24.74
24.48
24.20
23.92
23.63
23.32
23.02
37.85
37.12
36.72
36.31
35.87
35.44
34.97
34.52
50.47
49.49
48.96
48.41
47.83
47.26
46.63
46.03
Battery installation
Tighten the battery cables to battery terminals with torque of 95-105lbs.inch or 10.7-11.9 N.M. Make sure there is
nothing else between the battery cable lug and battery terminal post.
WARNING: When working with the battery, DO NOT put wrenches or any other metal objects across the
battery terminals. An arc can occur, and it may cause explosion of the battery and physical injury.
Batteries should be installed or replaced only by a qualified electrician.
Gear Box Maintenance
1. The clearance for the clutch should be kept between 2-3 mm.
17
2. The friction plate should be changed periodically; the friction value on one side should not exceed 2 mm.
3. Adjust the flatness of the platen spring plate (feeling manually): first tighten the screws diagonally, use
your hand to check the flatness of the spring plate. If not flat, tighten the screws for the non-flat part.
4. Change the gear oil inside the gear box periodically (for new vehicle, change the oil after one month or
accumulated running distance exceed 1,200 km; change the oil again two months later, then change the oil
every six months.) The oil type is 85W/90GL.
5. Clean the gear box before changing the oil.
CAUTION: Never mix different oils.
Traction Motor Maintenance
•
•
•
•
•
This traction motor is designed for use up to 4,000 ft altitude and at temperatures between -15˚F and
100˚F.
This motor can work properly with a voltage produced by batteries in series.
Never keep the motor running idly.
Any mud, sand and other clinging objects should be cleaned away so as to provide good heat-radiation.
Check the carbon brush every three months, change the worn carbon brush and weaken carbon brush
press spring.
Trouble-Shooting for Motor
WARNING: Only a qualified electrician should change and adjust the carbon brush and commutator.
Item
Symptoms
Possible Causes
1
All copper plates turn black.
The pressure of brush is incorrect.
black in a certain order and
poor welding or disconnection between the
2
3
4
The commutator turns
in groups.
The commutator turns
black in disorder.
The brush wears out, turns
Short circuit in the commutator or armature coil;
commutators and the armature coil.
The central line of the commutator deviates or its
surface is not round and not smooth.
The motor vibrates; the clearance between the brush
and its holder is too big; the clearance between the
18
5
colors and become broken.
brush and commutators is too big; the mica between
Sparking.
The motor is over-loaded; the commutators are not
different commutators extrudes; the brush is made
by wrong materials; the brush is wrong in type.
clean, not round or not smooth; mica or some
commutators extrude; the brush is not ground
properly; the brush is big in pressure; the brush is
wrong in type; the brush is jammed in the brush
holder; the brush holder become loose or vibrating;
the polarity and sequence of magnetic poles become
6
The brush and its wires get
7
The brush is noisy.
hot.
wrong.
Sparking of the brush; poor contact between brush
and soft wires; small section area of soft wires.
The surface of the commutators is not smooth.
Speed Controller Maintenance
The speed controller of the vehicle uses high frequency MOS technology to accomplish the control of speed, torque
and brake with smoothness, silence, high efficiency.
The speed controller prevents the vehicle from running way when starts. When the vehicle starts, the controller
will inspect the signal from the accelerator; if signal exceeds 20%, the HPD (protection unit in the controller) will
prohibit the output of controller.
When the vehicle starts, the SRO (protection unit in the controller) will effect.
The controller will self-check when the vehicle is running. If any defect is inspected, the controller will stop the
vehicle to protect the operator and the vehicle.
Periodical Maintenance:
•
•
Check if the contacting points of the contactor are in good condition, and check if any contact sticks or is
jammed mechanically.
Check if the micro switch in the accelerator can be switched on and off properly.
19
•
•
Check if the turn signal switch can be switched on and off properly.
Check if all the connections between the motor, the battery, and the controller are in good condition.
Please use the following cleaning procedure for routine maintenance:
•
•
•
•
•
Turn the power key to OFF position.
Remove power by disconnecting the battery.
Discharge the capacitors in the controller by connecting a load (such as a contactor coil or a horn) across
the controller’s B+ and B- terminals.
Remove any dirt or corrosion from the connector areas. The controller should be wiped clean with moist
rag. Dry it before reconnecting the battery. The controller should not be subjected to pressured water flow
from either a standard hose or a pressure washer.
Make sure the connections are tight, but do not over-tighten them.
NOTES: All above checks shall be performed under power off. Above checks shall be carried out once every 3
months; after the power key turns off, the wave-filter capacitor in the controller unit shall keep discharging for a
few minutes more; don’t wash the electrical parts with water. It is allowed to remove dust with a brush or high–
pressure air.
Brake System Maintenance
•
•
•
Step the brake pedal with a force of 30kg or so, the pedal travel shouldn’t exceed 2/3 of the full free pedal
travel.
The clearance for the brake plate is self-adjusted. Under a force of around 20kgs, the parking brake handle
should be fixed in one gear from 5 to 10 ratchet. When the brake handle is released completely, the brake
function will stop.
Inspect and change brake shoe, add lubrication into the brake bearing periodically.
Lubrication of the Whole Vehicle
•
•
•
•
Use 901 vehicle brake oil DOT3 as brake oil.
Use 1L of 85W/90GL lubrication oil for gear box.
Use 1L of 90GL hypoid gear oil for the rear axle.
Lubrication points: a. steering gears; b. horizontal bars; c. steering ball joints; d. bearings.
20
Lubrication Notes
•
•
•
•
•
•
•
•
•
•
•
To avoid any damage on the brake shoe, handbrake should be released before staring the vehicle.
The lubricant for rear power assembly must be applied and changed as per user’s manual.
The brake system must be adjusted once every 3 months.
The electricity system must be checked once every 3 months (especially main circuit) for its fastening
parts and wiring connections. Meanwhile the contactor should be checked, any defective parts should be
replaced immediately. Its dust should be cleaned by low pressure air.
The electric contactors easily become hot if their mutual contact is not in good condition, so special
attention should be paid regularly to the electric contactors.
When changing the fuse, make sure that the new fuse is right in rated current.
For safety, disconnect the positive pole from the battery when maintenance is done.
Never step on the accelerator pedal hard and frequently, which may shorten the life of the controller.
It is prohibited to fill any other liquids (such as battery addictives, mineral water and tap water) into the
battery, ONLY the distilled water is allowed to fill in the battery.
Check periodic maintenance charts (below).
Regular maintenance is required for the best performance and safe operation of the vehicle.
WARNING: Make sure to turn off the power key and apply the park brake when you do the maintenance unless
specified. If the owner is not familiar with the maintenance of this vehicle, the dealer should do the work.
D – per day W – per week M – per month Q – per quarter Y – per year
Item
Descriptions
D
Battery
1. Check the liquid level. Please add the distilled water if
necessary.
2. Charge the battery
W


3. Tighten the nut on the battery cable

4. Check if the battery is over-discharged (the battery
power meter flashing)
5. Check the liquid density of the battery, standard density
should be 1.275±0.005 (25℃).
21


M
Q
Y
6. Check if the battery is charged fully by 3 ways: a) using
the hydrometer; b) checking the battery power meter;
Charger
7. Clean the surface of battery
8. Observe the charging status, check if the charger plug
becomes hot.



9. Clean the surface of the charger. Do not get any water
Controller

inside the charger.
10. Check if all terminals are tightened properly. Please do

this after the power is off.
11. Clean the surface of the controller.

12. Check if the solenoid is in order, checking its touching
Motor
Chassis
and body
point.
13. Check if any water gets in. Check if it becomes too hot.


14. Check if the carbon brush should be replaced.

15. Check if the accelerator pedal works well and if it can be

16. Check if the brake drum and the brake shoe should be

released freely and automatically.
replaced or not.
17. Check if the hand brake functions.

18. Check if the hose and tube for the brake liquid leaking.

19. Check if the brake liquid inside the brake liquid tank is

enough.
20. Check the air pressure inside the tire, check if the tire
surface is worn, check if the nuts are tightened properly.
21. Check if the shock absorber has any oil leaking, flat or
abnormal noise.
22


22. Check if there is oil leaking on the gear box and the rear
end.

23. Add the lubricant inside the wheel hub, steering system.

25. Clean the body and seat.

24. Adjust the toe-in of the front end.
After above maintenance, drive the vehicle to check if the vehicle works properly.
23

Storage
Please follow the steps as below when the vehicle is stored.
1. Check the liquid level inside the battery; recharge it fully before storing the vehicle.
WARNING: Charge the battery once a month if your vehicle will be stored more than one month.
2. Turn the power key to OFF position, remove the key, and store the key in a safe position.
3. Engage the parking brake.
4. Check the tire pressure to make sure its pressure is set to recommended pressure.
5. Clean the exterior of the vehicle and apply the rust inhibitor.
6. Cover the vehicle with a breathable cover and store it in a dry, safe and well-ventilated place.
7. If the vehicle is to store for a longer time, check the liquid level inside the battery once a month and
recharge the battery.
24
Trouble Shooting
There is no settled mode to diagnose and eliminate the malfunction of electric shuttle buss. During maintaining
and checking, we suggest you first listen, then look and feel. Below is the diagnoses and maintenance of some
common malfunctions.
1. The vehicle doesn’t move.
Malfunction
Turn on power key,
Possible reason
Troubleshooting
Connector(s) in Circuit is loose or open
Tighten or connect
Battery cable(s) is loose or disconnected
Tighten or change
Voltmeter is broken
Change
Fuse of controller or main circuit is open Change fuse
Voltmeter has no signal Power key is broken
Battery terminals connect improperly
Improper operating procedure
Turn on power key,
Voltmeter has signal.
Controller Failure
Solenoid Failure
Accelerator Failure
Motor Failure
Parking brake doesn’t loosen
Over-heat protection
Change
Adjust
Operate properly
Check or Change
Check, repair, change
Repair or Change
Repair or change
Loosen parking brake
Check, eliminate
2. Loses control when vehicle starts running, speed cannot be adjusted.
Malfunction
Vehicle runs at full speed when
it starts
Vehicle stops immediately after
Possible reason
Troubleshooting
Terminals of Solenoid stick together
Controller failure
Check, repair
Change
Potentiometer failure
Repair, change
Motor is assembled too tight or blocked
Repair, change
Internal short of Motor
25
Repair, change
it starts
Controller failure
Repair, change
Normal at low speed,
Controller Failure
Check, change
Accelerator Failure
Motor Failure
Weak power at high speed
Accelerator Failure
Repair, change
Check, change
Check, change
3. Vehicle cannot change direction, only runs in one direction
Malfunction
Possible reason
Vehicle can only run in
F&R switch failure
one direction
Troubleshooting
Change
Controller Failure
Change
4. Malfunction of electro-mechanic system
System
Malfunction
Possible reason
Clearance of rear axle decelerating
gear is too big, or the decelerating
Adjust, change
Transmission cross shaft wear out
Change
gear is broken
Transmission
System
Abnormal sound
when running
Gear of transmission wear out or
damage
Flange bearing damage
Motor bearing damage
Hard to shift gear,
and/or gear shift
jumps in different
Troubleshooting
Gear liquid is deficient or empty
Clutch cannot separate smoothly
Gear shift cable damage
26
Change
Change
Change
Add Gear liquid
Adjust
Change
positions
Gear inside transmission case wear
out
Orientation pin loosen
Pressure of front tire is deficient.
Screw plug of Redirector is too tight
Lack of lube in redirector
Steering heavy
Toe-in abnormal
Clearance of tension rod ball is too
big
Steering knuckle and master pin is
not lubricating
Steering System
Steering shaft or its plastic cover
wear out
Rack of redirector wear out
Screw plug of Redirector is too tight
Steering unstable
Toe-in adjust improperly
Bearing of front wheel wear out
Tie rod ball and joint wear out
Redirector loose
The pressure of the two front tires is
Driving System
Deflected Running
different
Toe-in is too big or too small
Tightness of the left and right drum
bearing of front wheels is different
27
Change
Change
Check the pressure
and Inflate
Adjust
Maintain, add lube
Adjust
Change
Add Lube
Change
Change Redirector
Adjust
Adjust
Change
Change tie rod
Tighten
Inflate
Adjust
Adjust
Brake of one wheel is too tight
Spring shock absorber is abnormal
Front suspension loose
Tire pressure is abnormal or tires
need to be rotated
Toe-in is improper
Abnormal Tire Fray
Drum bearing loose
U type Bolt of Leaf Spring loose
Rim distort, frame distort
Brake force of each wheel is
different
Overexert accelerate or brake
frequently
Master cylinder and/or wheel
cylinder damage, vitta leak oil
Brake fluid is insufficient or empty
Brake fail
Brake System
Air enters into oil pipe
Free travel of Brake pedal is too long
or the clearance of arrester is too big
Brake drum wears out or distort
Master cylinder leaks oil internally
Braking deviation
The clearance of left brake drum
shoe and right brake drum shoe is
different
Oil on one arrester’s brake shoe
28
Adjust or Change
Change
Change
Inflate or rotate
Adjust
Change
Tighten
Tighten
Adjust
Alter operation
Check, eliminate,
change
Add fluid
Let air
Adjust
Change
Change
Adjust
Dispose or change
Tire pressure is different
One wheel cylinder’s piston blocks
Wheel alignment improperly
Brake drum becomes out of round
Brake pedal has no free travel
Clearance between brake shoe and
drum is too small or releasing spring
Braking drag
is disable.
Piston of wheel cylinder is
ineffective
Piston of master cylinder is
ineffective
Parking brake is ineffective
Braking noise
Shoes distort
Brake facing wear out
Brake drum breach, scrape to
uneven
Repair or Change
Adjust
Adjust
Change
Adjust
Adjust or Change
Check、Change
Change
Change spring
Change
Change
Change
This manual tries to be as sound and elaborate as possible in literal and figurative description as well as technical
description on the basis of existing data. At the same time, JH Global reserves the right to alter the content of this
manual and this manual is subject to change without prior notice; in addition, JH Global has the final say on the
interpretation of this manual.
All rights reserved.
29
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