Under the law, the dealer is obliged to attach the LEADER FOX Electric Bicycle Operating Instructions to every product
Latona
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Introduction
Dear users,
Please read carefully all the information regarding your E-LF product to ensure optimal functioning of your
e-bike. The following text containing a comprehensive description will provide you with information on all
aspects and details (including installation, setting up and general use of the display) regarding the use of
our display. This instruction document will also help you solve potential problems and failures.
What is an electric bicycle?
Electric bicycle is a conventional bicycle with an electric drive added to assist the rider. The motor function
is actuated by pedalling, which is scanned by a special sensor installed in the pedal hub. Therefore, you
have to keep pedalling on an e-bike, the motor is there only to help you. You can set an electric bicycle in
motion also using a control button or an accelerator but only up to the maximum permitted speed of 6
KMPH (e.g. for walk assistance). The maximum speed of an e-bike with motor assistance is 25 KMPH, with
a 10% tolerance (when this speed limit is reached, the motor switches off and you need to pedal just like
with a regular bicycle). When your battery runs out of power or your motor is off, you can ride your
electric bicycle as a conventional bike, without any resistance at all.
From the point of view of the Road Traffic Act, an electric bicycle whose features conform to European
standard EN 15194-1 is regarded as a regular bicycle, i.e. you can ride on bike trails, do not need a driver's
license and a helmet is mandatory only up to 18 years of age.
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Description
Display with controller
Battery Motor Pedal senzor
Factors influencing the electric bicycle range
1. Rolling resistance of the tyres. Leader Fox e-bikes are fittet with tyres with low rolling resistance and
increased resistance to puncture. It is also important that the tyres are inflated properly. Therefor, if the
tyres of your electric bicycle are underinflated, the range will decrease.
2. Weight of the electric bicycle. The lower weight of the electric bicycle, the greater the range.
3. Battery status. It depends on whether the battery was fully charged before your trip. It is also to be
expected that the higher the number of discharge cycles the battery has undergone, the smaller capacity
it has.
4. Profile and surface of the track. The higher the elevation difference and the steeper hills you negotiate
and the worse surface, the shorter the range.
5. Riding mode. It depends on which of the three riding modes you have set.
6. Continuity of riding. The more braking and acceleration, the shorter the range.
7. Air resistance. For example, it depends on whether we ride a bicycle with low frame and sitting upright
or whether we ride sporty bicycle with seat set to the same height as the handlebars.
8. Wind strength. The stronger the wind we have beck, the longer the range and vice versa.
9. Weight of the rider and load. The greater the weight, the shorter the range.
10. External temperature. The lower the temperature, the less battery capacity can be used while riding.
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Safety instruction
Battery:
Do not throw the battery into fire.
Do not throw the battery into water.
Do not use the battery for other appliances. It has been made specifically for this model.
Do not dismantle or modify the battery.
Do not connect the positive and negative poles of the battery.
Charger:
Do not dismantle or modify the charger.
Do not use the charger for other appliances. It has been made specifically for this model.
Do not throw the charger into fire or water.
Do not touch the charger with wet hands.
Keep the charger from animals or children.
Do not cover the charger.
Do not use the charger if it is broken.
Switch on/off battery
Light
Battery lock
Charging set
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Battery
Battery charging and maintenance:
Charge the battery in a dry enviroment to avoid short-circuit damage.
Charge the battery to at least 60% of the capacity once every 3 months even when the bicycle is not used.
Do not cover the battery or the charger.
Do not leave the battery constantly connected to the power source.
Do not use the battery for other appliances. It has been made specifically for this model.
Do not disassemble or modify the battery pack.
Do not throw the battery into fire or expose it to extreme temperatures.
Recharging time from zero to 100% is 1-7 hours.
Drive warranty:
The warranty applies to those drive parts that are not sensitive to improper handling (pack, electronics,
charger, etc.); such parts are covered by a 24-month warranty.
The warranty does not apply to chemical parts of the battery and to capacity reduction due to normal use
(39% after the expiry of two years); those parts are covered by a 12-month warranty.
Charging:
The battery is the most expensive part of an electric bicycle; therefore, pay increased attention during
handling, charging and storage. The battery is sensitive to precise charging. Therefore, it is necessary to
charge Li-Ion rechargeable batteries using only a charger supplied by us. Connect the charger to 220-240 V
power outlet. 5A protected circuit is sufficient. The charger will automatically suspend charging when full
capacity of all cells is reached.
We recommend discharging the battery in full after each ride to ensure that your battery will be up to its
full capacity for your next ride. Charging the battery may last 1 to 5 hours depending on the condition of
the battery cells. Charge it exclusively in covered dry areas (moisture and dripping water can damage the
charger) at a temperature of 5 to 40°C.
The charging process is indicated by a red glowing LED. It will turn green when the battery is charged and
the charging process is complete. The battery contains a charge-monitoring indicator (when the charge
indicator button is pressed, the light indicator will come on). Always switch off the battery when finished
riding the bike.
Normal battery behaviour:
If the motor stops running smoothly and switches to intermittent operation, it could be a sign of low
battery capacity. In that case switch off the electric drive system and continue without motor assistance,
as if riding a conventional bicycle.
Battery warming is normal and does not indicate any defect. The battery is protected by a temperature
sensor and switches off automatically in case of excessive overheating. Wait until the battery cools down
to its normal operating temperature and then ride on.
If you feel your total battery capacity has dropped, it could be caused by charging or operation in
suboptimal climatic conditions. Carry out 3 full charging cycles. Fully discharge the battery while riding
and then charge to its full capacity at room temperature.
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If the charge indicator shows that the battery is discharged, there is still a minimum voltage level in it
which protects it against damage but is not enough to power the electric bicycle. Recharge the battery as
soon as possible. Never leave the battery fully discharged, it could results in its damage.
If you switch on the battery by POWER button the rear light will switch on too. The light is on from safety point
whole the time. If you want to switch off it, you have to switch off whole bike by POWER button on the top
side of the battery.
In the case, that the battery will be turned on more than 30 min and bike will not be used, the battery will be
automatically switched off.
Proper care of the battery prolongs its life.
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LCD display
Product:
Intelligent LCD display APT12LCD03U
Supplier:
Tianjin APT Development Cop., Ltd.
Electrical parameters:
Battery supply 36V
Rated operating current 10mA
Max operating current 20 mA
Off leakage current < 1 uA
Maxoutput current to controller 50mA
Operating temperature –18 ~ 60 °C
Storage temperature –30 ~ 70 °C
Dimensions and materials:
High-contrast TFT colorful display.
Prodcut shell is ABS, transparent window is made withhigh strength Acrylic.
Can be used up to -20°C.
CE / IP65 water proof / ROHS.
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Screen instruction:
Km/h –indicator of speed unit
Battery capacity indicator
Level PAS (0-7)
POWER
+ – Up
- – Down
Maximal range:
Maximal range is set with fully charge battery and flat terrain and little bit of headwind. Average range is
calculated with ideal set of the assist and slightly hilly terrain.
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Assembly instructions
Display assembly:
Please pay attention to the tightening torque of screws. Damage caused by excessive tightening torque or
incorrect assembly / disassembly is not covered by warranty.
Connector description:
1 –Red wire: Anode (24V/36V)
2 –Blue wire: Power cord to the controller
3 –Black wire: GND
4 –Green wire: RxD (controller -display)
5 –Yellow wire: TxD (display -controller)
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Control
Press and hold for a second Power button for switching the e-bike on/off.
Shortly press + button to increase the PAS level or – button for decrease the PAS level.
Press + and hold the button for 1.5 second to switch on/off the headlight (and the backlight) and the
LCD display backlight.
Press - and hold the button for 1.5 second to switch to the WALKING mode.
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Maintenance
Regular maintenance:
- maintain all components of the electric bicycle clean
- use only the recommended and tested cleaning materials
- regularly lubricate the chain with suitable oils
- in winter, clean the electric bicycle after each ride and pay increased attention to removing salt from
battery contacts and other connectors
- while handling the electric bicycle, make sure the cables of the electric system are not damaged.
Damaged cables pose a risk of electricshock
- regularly check all connections for correct tightening and brakes for correct function. Check also
individual parts of the electric bicycle for damage. For example: cracks on the frame, fork, handlebars,
stem, damage to cables, damage to battery pack, etc.
Battery transport:
Battery transport is subject to the requirements of regulations on dangerous goods. Private users may
transport undamaged batteries on roads without having to conform to other conditions.
In case of transport by commercial users or by third parties it is necessary to comply with special packaging
and marking requirements (e.g. ADR regulations)
Batteries should only be sent if the battery pack is undamaged. Plug loose contacts and pack the battery to
prevent its movement in the packaging. Notify the forwarding service that the transport concerns
dangerous goods.
Battery storage:
Store the battery in a dry and well-ventilated place, out of reach of direct sunlight and other heat sources.
In case of cold storage it is necessary to let the battery warm up to normal room temperature (20°C)
before putting into operation.
Never leave the battery fully discharged. It could result in its permanentdamage. For long-term storage
keep the battery fully charged. However, do not store it while permanently connected to the charger or
installed in the electric bicycle.
Li-Ion batteries are fully recyclable. After expiry of the battery life you can returnit at any collection point
or your dealer.
If you use an e-bike in hard conditions (long-term use of the maximum assistance), for longer ride at higher
temperatures (30 ° C or above), in direct sunlight or when the battery is partially discharged and a
combination of these situations is it possible that bike will automaticly swith off. This is a fuse protecting
the control unit against burning. We recommend stop the ride and let the bike (control unit) cool down
little bit. This is not a defect.
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Possible problems and their solutions
In case of system failure perform its diagnostics or contact your dealer.
The control LCD display is not on:
- always make sure the battery is charged
- check whether the battery is inserted correctly, whether the battery switch is on
- check the connections of the control unit and the display
The motor does not start when the walk assistance button is pressed
- check the connection of the motor cable (at the motor and the control unit)
- check the connections of the control unit and the display
The motor does not start when rotating the pedal cranks (pedalling)
- check the connection of the pedalling sensor to the control unit
- check the distance between the pedalling sensor and the magnet disk (max. 4 mm)
- check whether the disk is firmly attached to the central axle and does not spin freely
- in case of use of compact-type pedalling sensor
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Warning
Error code
Description
Solutio
n
1
Communication error
Check the cable connection
2
Regulator protection
Check the three-phase electric line
3
Three-phase supply error
Check the three-phase conncetion
4
Low battery
Charge the battery
5
Brake error
Check the brake connection
6
Turn error
Check the turn connection
7
Hall probe error
Check the hall probe connection
When there is a problem with the electric bicycle, it can show error messages. LCD display will show the
icon and an error code will be displayed on the speed display. Error codes are marked from 01 E~FF E; see
their meaning in the table below.
Assembly and disassembly of the wheel with the engine
For transportation and maintenance (replacing the tire tube) it may sometimes be necessary to
disassemble the wheel with the engine.
First, pull lightly to disconnect the engine connector (about 20 cm from the engine entry).
Then loosen the brake (if it is used) and change the gear to the smallest wheel.
Remove the rubber covers from the wheel nuts.
Loosen the engine nut using a spanner size 18 and remove the wheel from the frame.
For assembly, reverse the order of these steps.
To connect the connector properly, the arrows on the connector (1) must face each other.
Switch the drive unit on and test it.
During wheel assembly, pay attention to the proper position of the central axis of the wheel nave facing
down. The cable must enter the engine from below. Otherwise, water could get into the engine on the
cable and the engine could be damaged.
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Electric set warranty
Complaint procedure:
Submit any complaints concerning the electric set or the battery to your dealer.
When filing a complaint, submit a proof of purchase and a warranty certificate with the registered serial
number of the battery and indicate the reason for the complaint and a description of the defect.
Wrranty conditions:
24 months for electric bicycle components – applies to manufacturing and material defects beyond
normal wear and tear caused by use.
12 months for battery life – the nominal battery capacity does not drop below 70% of the total capacity
over 12 months from the sale of the electric bicycle.
Warranty conditions:
The electric set must be used exclusively for the purposes it is intended for.
The electric set must be used, stored and maintained in accordance with these Operating Instructions.
A warranty claim shall expire:
If it is found out that the damage to the product is due to the user's fault (accident, inexpert handling
beyond the framework of these Operating Instructions, tampering with the structure of the electric
bicycle or connection of the electric system, improper storage, etc.).
Expiry of the warranty period.
The warranty only applies to the first owner
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Warning
If you do not understand any of the points in these Operating Instructions, please contact the dealer for
explanation. Please read the whole manual!
Do not lend the e-bike to persons not briefed in its use and operation. Complaints resulting from improper
handling will not be accepted.
The LF Energy electric bicycle is not intended for use by children under 15 years of age. Likewise, the electric
bicycle cannot be used by persons unable to pedal or handle it independently. The manufacturer is not to be
held responsible for any potential injuries or damage to the bicycle!
Ideal weather conditions for using an electric bicycle are dry days, when the outdoor temperature is above
10°C. When used at lower temperatures, the battery discharges faster due to physical phenomena. Using the
electric bicycle at temperatures below 0°C is not recommended.
Do not expose the bicycle to direct sunlight as it is fitted with a protective temperature sensor for the electric
motor.
Never submerge the battery, the charger and other electric components in water or another liquid.
Never wash the electric bicycle in a pressure washer (WAP) and always remove the battery before washing
It is forbidden to tamper with the connections of the electric motor, the control unit and the battery.
Violating this section may result in the warranty not being acknowledged or in irreversible damage to the
electric bicycle.
DO NOT USE chargers and components other than the ones included with the electric bicycle.
We cannot be held responsible for damage caused by use of other non-approved goods
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Enjoy many pleasant and safe kilometres on your new electric bicycle.