F-Wheel DYU A5 User manual

DYU SMART ELECTRIC BIKE A5
INSTRUCTION
Do not use this product without carefully reading this instruction manual
and understanding the performance of electric bicycles
Please keep the instruction manual properly
By F-Wheel

PRODUCT FUNCTION DIAGRAM
1.Gear Shift
2.Dashboard
3.aBrake handle
4.Handle bar
5.Light Switch
6.Vertical pole
7.Vertical tube quick release
8.Standing pipe
9.Pole Folding buckle
10.Pole Head(where the bike ID
code was engraved)
11.Front light
12.Front fork
13.Tire
14.Front hub
15.Disc brake plate
16.Disc brake device
17.Front fender
18.Bike frame
19.Chain Crank
20.Pedal
21.Bike frame folding buckle
22.Controller case
23. Chain Wheel
24.Battery case
25.Chain
26.Stand
27.Back fender
28.Rear hanger
29. Back light
30. Back seat
31.Seat pole
32.Seat
Note: Due to the company's product upgrade, some details of the product you get may be
different from this picture, but it will not affect your normal use.
PARTS LIST
Pedal×2 Charger×1 Manual×1 Allen wrench×2 Hex wrench×1
Install the pedals：
Right foot pedal:
rotate clockwise to install
Left foot pedal:
rotate counterclockwise to install
Folding Picture：
1.Lower the seat then lock it 2. Fold the vertical pole 3.Fold the bike frame

INTRODUCTION TO METER
See below meter screen:
INTRODUCTION TO THE ICONS ON METER INTERFACE
Definition of
Display Icon
Front Light
Display Icon Display
When the front light is turned on,this icon is always
luminous. When the front light is turned off, it will be
lightless. (The users can take this function for reference
when pressing the button on meter to turn on or turn off
light.Other operations to turn on or turn off light is subject
FUNCTION INTRODUCTION
1.Install the handlebar after unpacking, straighten and release the quick-release handle, adjust the horizontal handle
to the appropriate direction, then press the quick-release, gently hold the brake lever a few times, and use it after
the brake line returns to the best state , then install the foot pedal.
2.Charging: Connect the charger and start charging. When the indicator light of the charger changes from red to
yellow-green, continue charging for one hour more.
3.Switch on and off: Lightning " " button on the wireless key, press it twice in rapid succession, hear the alarm
sound once, then you can turn on, the instrument will start to work 3.after turning on; Unlock the“ ”key on the
wireless key, or lock the “ ” key, press once to hear the alarm sound twice, you can shut down, the meter stops
working after shutdown.
4.Turn on the anti-theft/release the anti-theft: Press the lock " " key on the wireless key to turn on the
anti-theft. In this state, when the car is shaken, an alarm will sound.
Press the unlock key " " to release the anti-theft. In this state, the car will not emit an alarm sound when it
is vibrated.
5.Bike search/sensitivity: Press the ringing " " key on the wireless key, and the anti-theft device will ring 5
times at intervals to facilitate car search. You can press other keys to stop the chirping. Long press ring.
Press the " " button for 5 seconds to adjust the vibration sensitivity, one ring for high sensitivity, two rings
for medium sensitivity, three rings for low sensitivity, continue to long press the ringer " "Key to switch
cyclically.
6.Power indicator: There are four levels of power indicator on the meter. For details, please refer to the instrument
function introduction.
7.Horn: Switch on the left side of the handlebar. After pressing the horn button, the horn starts to sound. It is
recommended to click. If you continue to press the horn button, the horn will stop automatically after 10 seconds.
Please release it before using it.
8.Headlight: ON/OFF on the left side of the handlebar is a light switch.
9.Brakes and tail lights: The brakes cannot be accelerated when the brakes are not fully rebound. The night running
lights and the front lights are switched synchronously. The brake lights are bright when braking.
10.Electric and power-assisted: The maximum speed of electric is 25km/h (the load, road conditions and power state are
different). The default ECO economical gear for power-on boot can be switched to three gears in a cycle. For details,
please refer to the instrument function introduction. Any gear can be directly driven by the accelerator.
11.Cruise at fixed speed: When driving electrically, rotate the accelerator for 5~8 seconds and release it. You can
drive at a constant speed at the current speed. Rotate the accelerator or brake again to cancel the cruise at fixed
speed.
12.Battery Removal and Installation: Press the lower handle behind the seat cushion, turn the seat cushion forward,
DC2.1
Charging Port
Light switch Dashboard
Horn Half handle
Throttle

FUNCTION OF BUTTON
ELECTRIC INSTRUCTION
When the battery power less -than 30%“ ”，the power meter will monitor if the power lobat is less than
low-voltage protection standard.After the power meter has detected that power lobat is lower than low-voltage
protection standard,the icon “ ” will keep flashing,which warns a battery low-voltage.
FAILURE CODE
Under the Failure Code mode,the current failure code will show up flashing.Please check below description of
failure code:
“EE-1”means that the meter fails to receive the communication signals.
“EE-2” means that the meter fails to send the communication signals.
“EE-3”means that the control board fails.
“EE-4”means that Hall sensor fails.
“EE-5”means default phase fails.
“EE-6” means gear shift handlebar fails.
“EE-7” means that brake handlebar fails.
“EE-8” means assistant sensor fails.
“EE-9”means the motor under low-voltage protection.
Current
Mileage
General
Mileage
Current
Speed
Current
Power
It displays the current mileage from start-up,from 0.0 to 9999KM.
Less than 1000hours,mileage displays 0.0 to 999.9KM.
More than 1000hours,mileage displays 1000 to 9999KM.
It displays general mileage,from 0.0 to 9999KM.
Less than 1000hours,mileage displays 0.0 to 999.9KM.
More than 1000hours,mileage displays 1000 to 9999KM.
It displays the current speed.
It displays power range.
Press the power button to turn on the E-bike.Keep pressing the
power button to turn off the E-bike.
Functions of this gear button:ECO means energy-saving mode;
MID means medium grade. HIGH means high grade with circular
switch.
ODO,TRIP,Voltage,Failure Code and Circular Adjustment Display.
DescriptionIconName
Power
Button
Functional
Button
Adjusting
Button
﹥70% 50%~70% 30%~50% ﹤30%
Power Percentage
Display

Remark: Many factors will affect the max speed,such as power,load,tyre pressure,road conditions,chain,lubrication
degree etc. Mileage has been measured on basis of temperature 25℃,load of 60KG,speed of 15-20KM/H,smooth and
hard road,and from full battery to dead battery. It also is subjected to other factors,such as driving habits,tem-
perature,load,tyre presure,road conditions etc.”
Size
Material
Folding size 730*330*650mm
Released size 1275*520*1001mm
Center distance of front
and rear wheels 895mm
Height between pedals to ground 120mm
Hub size 14inch
Package size 1150*220*650mm
Color Black/ White/Red
Weight (7.5Ah)22.4Kg / (21Ah)24.4Kg
Max load 120kg
Riding speed ＜25km/h
Mileage (7.5Ah):around 40KM / (21Ah):around 110KM
Uphill 15 degree
Battery 7.5Ah or 21AH lithium battery
Battery rated voltage DC48V
Charging voltage DC54.6 V
Charger input voltage AC220V
Charging time 4H/11H
Motor type Brushless DC motor
Seat height Adjustable
Suspension Front fork suspension and seat pole suspension
Lights Yes(front and rear light)
Brake mode
Smart App
Front and rear disc brake
No
Motor rated power 350W
48V
Temperature -10~45℃
Waterproof IP54
Aluminium alloy
Performance
Standards
Features
PRODUCT PARAMETERS
Motor rated power

CIRCUIT SCHEMATIC
Left brake
Right brake
Motor
Booster
Light switch
Horn switch
Horn
Front light 3W
5V
Hall1
5V
Phase line A
Ha
Hb
Hc
GND
Phase line B
Phase line C
GND
5V
Hall2
GND
5V
Hall1
GND
K1
GND
GND
Electric lock_48V
Electric lock_48V
K1
K2
K2
RX1
Brake
GND
Brake
GND
TX1
Electric lock
_48V
Electric lock
_48V
Dashboard
124DX
GND
RX1
TX1
Night light
GND
K1
Brake light
B_48V
48V
GND
Anti-
theft
device
Phase line
Anti-theft signal
Electric lock_48V
100VAC
30A
48V battery pack
DC2.1
charging port
48V
100VAC
10A
GND
GND
1.Press the lower handle behind the seat
cushion and turn the seat cushion forward;
2. Unplug the power cord and unlock the
battery key;
3. Lift the battery along the direction of the
chute to disassemble;
4. Reverse operation can complete the
battery installation.
ILLUSTRATION OF BATTERY REMOVAL AND INSTALLATION
Controller

Charge between 0 degree- 45 degree, rife between -20 degree to 60 degree, keep the battery dry. Don’t put it in
acid and alkalinity fluid. No rain, fire and heat. Don’t put the battery positive an negative wrong. Don’t
damage disassemble the battery or use the wrong adapter. Don’t charge it over 6 hours and don’t charge it over
2A.
When not using for a long time, please put the battery in dry and cool place and charge it for 2 hours every 2
months. Follow the instruction or the user will be responsible for the consequence.
When charging, Please be careful of the battery type and voltage, place the battery in open air and don’t put
it under bright sun shine and closed space.
When charging, please place the battery first, then connect the electricity; after charging, cut the electricity
then cut the battery plug. When the green light lights up, turn off the power, don’t connect the battery when
not charging.
When charging, if the indicating light goes wrong or some strange smell shows up or the charger is over hot,
please stop charging immediately, them check and repair or replace the charger. When using or storing the
charging. In case of something wrong were dropped into the charger, especially the water or other fluids, please
don’t take the charger when possible. Otherwise, be careful and put it in the cool box. No disassembling the
charger yourself.
Please check the brake before riding.
Please brake the rear wheel first.
Be careful of the tightness of brake, use the hexagon wrench when it’s loose.
Rainy and snowy days need longer braking distance.
Suitable age :16-45 years old.
Riding
Read the instruction first to know the product performance first.
Don’t lend it to someone who is not familiar with it.
Wear a helmet when riding. Obey the traffic rules and don’t ride it in the cars road.Don’t riding it in the
crowded road.
When go downhill or slippery road, the speed should be under 15km/h.
Inspect the Tyre before riding, Tyre pressure should be 35-45PSI.
Don’t over impact the motor, keep the axile smooth.
Don’t over load.(Max load is 120kg)
Please be careful of the adding distance when it under the rainy day and snow day.
Single-handed ride is prohibited.
Maintenance
The E-bike front and back wheel should be at the center of the frame.
Put the E-bike up after riding at cool and dry place.
Check the Motor and Brake often, don’t inject the oil onto the brake.
Check the E-bike and screws and places that need fixing, fix it often.
Suggested torsion: Bar screws 60-80 kgf.cm, bar stand screws 175-200kgf.cm, wheel screws 320-450kgf.cm.
Check the Tyre is pierced and leaks air, please contact professional technician for repairing and replacing.
Responsibility announcement
All the product model, type and related information copy right and explain right are reserved.
This instruction is suitable for denoted models.
Any changing or replace part of the E-bike will not be informed again.
No copy, modification, propaganda or publication before getting the permission form F-wheel.
Read the instructions and follow the instructions or the user will be responsible for the damage.
CAUTION

Manufacturer: Shenzhen Counterbalance Technology Co., Ltd.
Production address: No. 105, Pingshan Industrial Road, Tangxia Town, Dongguan City, Guangdong Province
website:www.fwheel.cc
Phone: [phone]