KETELES KF9 Folding Electric Bike for Adults User Manual

: June 1, 2024
: KETELES

Table of Contents

KETELES KF9 User Manual
- Smart Display Instruction
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KETELES KF9 User Manual

KETELES KF9 Folding Electric Bike for Adults

HELMETS SAVE LIVES!!

ALWAYS WEAR A PROPERLY FITTED HELMET WHEN YOU RIDE YOUR BICYCLE.
DO NOT RIDE AT NIGHT.
CPSC RECORDS SHOW THAT ABOUT 35% OF BICYCLE RELATED DEATHS OCCUR AFTER DARK.
AVOID RIDING IN WET CONDITIONS.
CPSC RECORDS SHOW THAT ABOUT 65% OF INIURIES HAPPEN TO CHILDREN UNGER 15 YEARS OF AGE.
RIDE ONLY WITH ADULT SUPERVISION.

| CORRE CTFITT- MAKE SURE YOUR HELMET COVERS YOUR FOREHEAD.

INCORRECT FITTING. FOREHEADIS EXPOSED AND VULNERABLETO SERIOUS INJURY.

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Smart Display Instruction

Switch on and off: Long press power button for 3 seconds to turn the display on/off. Quick press power button to check solo / total mileage. Speed Grade: press the +/-button to switch the speed grade. instructions: At 0 grade mode, at this time, the motor does not work when you turn throttle grip, and the human riding has no electric power

Speed Grade 1-5 instruction
Speed Grade 1-5, turn the throttle grip, the motor works) and PAS starts at the same time. At this time, different assist and speed are matched according to the selected speed grade

CRUISE CONTROL SYSTEM
Pure electric riding mode, during riding process (turn rotatable grip + long press – button for 5 seconds) to enters cruise mode instrument display Cruise sign). Brake cancels cruise (Cruise mode need to be used in good road conditions, with few pedestrian and vehicles on the road)
Note: For the normal use of each function, please ensure that the led display works

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The Packaging of the e-bike
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Remove the packing EPE pearl cotton| Turn upside down
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Remove the fork spacer. (it protects the fork from crushing and deformation, it’s not a part of the bike)| Put the front wheel on the fork
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The fork dropouts hold the tips of the front hub| Tighten the nuts on both sides
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Front wheel installation completed| Turn it over again
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Ready to install the steering column| Insert the upper part of the column into the lower part
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Stand the steering column| Lock the column folding quick release lever
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Use the bolt to join the headlight, fork arch and fender| Tight the bolts
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Tighten another 2 bolts to fix front fender| The headlight and front fender are fixed to the fork
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Fix the basket holder to the head tube
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Install the basket
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The pedal with letter L should be fixed on the left side| Turn spanner counter-clockwise to fix the pedal L
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The pedal with letter R should be fixed on the right side| Turn the spanner clockwise to fix the pedal R
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Side view of the e-bike| Turn the key on the right and then press button M for 3~4 seconds on the left
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The safety switch and the frame folding quick release lever| Turn the safety switch
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Pull the frame folding quick release lever outward| Fold the frame
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Fold the e-bike| Fold the steering column

Grip
Brake Lever
Shifter
Acceleration Button
Deceleration Button
Power Button
Horn Switch
Headlight Switch

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Shifter
Brake Lever
Twist Throttle
Keypad Start Switch

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Turn on the battery first and then press this button for 3 seconds to turn on the display| The Red switch can turn on or turn off front motor. The cell phone holder has USB charging port

SMART LED COLOR DISPLAY

Suspension Fork with Lockout
Battery Status
Speed Grade
Real-time Speed
Odograph
Shifter
BRAKE LEVER
Twist Throttle
Acceleration Button
Deceleration Button
Power Button
Horn Switch
Headlight Switch

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Battery Status
Real-time Speed
Odometer
Speed Grade

Press button + or – can change speed grade.| The multifunctional color LCD display

Parts

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Warranty Period

| Example Problems
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Motor| 1 Year| 1.Internal gear break.
2.Bearing broken.
3.The wheel hub shell cracking.
4.Coil burned.
5.Magnets off.
6.clamping stagnation or have serious noise, not the normal operation
Controller| 1 Year| 1.Short circuit or open circuit.
2.Overusing.
3.Coaster related protection function failure.
Battery| 1 Year| Not working
Charger| 1 Year| Not be charged
Switch| 1 Year| Not working
Display| 1 Year| Not working, no display
Front Light| 1 Year| Not working
Frame| 2 Years| Damage
Suspension Fork| 1 Year| 1. Natural sealing off.
Handlebar| 2. Fracture key parts crack.
Seat post| 3.Fork fracture.
Throttle| 1 Year| Not working
Axle| 1 Year| Bend, break
Pedal| 1 Year| Not working
Free Wheel| 1 Year| Not working
Shifter| 1 Year| Not working
Rear Derailleur| 1 Year| Not working
Brake| 1 Year| Not working
BB| 1 Year| Quality problems
Kickstand| 1 Year| Broken
Crankset| 1 Year| Not working
Notes

The following conditions are not covered by the warranty:
1. Water damage of the battery, motor, and controller.
2. Man-made damage, self-modification, collision damage of spare parts, etc.
3. Tire puncture by sharp objects.
4. Test and dispose of the ebike for sale.
5. Products or accessories that are beyond the warranty period.
6. Improper use by the user resulted in damage to the bicycle and failure to follow the terminal’s instructions for repair and maintenance.
7. Poor and damaged due to natural disasters, man-made disasters, irresistible forces or chemical attack.
8. For accessories that do not need to be returned, proof materials such as videos or pictures cannot be provided.
9. Damage caused by modification or addition or subtraction of other accessories.
10. It is a vulnerable or consumable item in normal use (accessory coating, inner tube, thread tube, order piece, sprocket, chain, pedal). It is not covered by human injury, damage, normal wear and tear.

Question 1: What does the display error code mean? What is the reason for it?
Answer: Except for communication errors which are actively reported by the display, all other error codes on the display are reported to the display by the controller, and the display shows them.
1> The communication error is because the display cannot detect a controller data reply within 10 seconds, Possible reasons:
(1) The communication wire harness between the display and controller is not connected correctly or the wire harness is broken;
(2) The protocol between the controller and the display does not match;
(3) The communication wire of the display is burned;
2> Possible reasons of Hall sensor failure: (1) The motor Hall sensor is damaged; (2) The Hall sensor wire is connected incorrectly or not properly;
3> Possible causes of throttle failure: (1) The throttle is not in place; (2) The throttle is not connected properly; (3) The throttle is damaged;
4> The motor phase position loss. Possible reasons: (1) The motor phase position wire is not connected properly or correctly; (2) The motor phase position wire is short circuited;
5> Possible reasons of brake failure: (1) Brake is not in place (2) Brake is damaged or not connected.
6> Possible reason of controller failure: controller is damaged or MOS failure.
7> Possible reason of abnormal current: controller is damaged or MOS failure.

YL-01, YL-02 error code

Error Code| Failure part| | Error Code|

Failure part

E001

Brake lever failure

E003

| Hall sensor failure| E006| Motor phase loss

YL-05, KDS, YL-J error code

Error Code

Hall sensor failure

E022

Communication failure

The power assisted mode match with the gear shift to achieve the riding experience of labor-saving and power saving
In the setting of power assist riding, on few slopes and good road conditions, it is recommended to match with variable gears, 7-6 high-speed gears, with the best power-saving effect and speed ratio
In case of large slope road conditions, gear 4-7 is adopted, which can easily and effortlessly climb the slope Riding with power assisted mode, if use speed shifting &climbing mode on flat road will waste electric power and accompany with the feeling of empty treading

5 PAS Grades

| Labour| Motor Power| Effect
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PAS 0| 100%| 0|

Cycling for exercise

PAS 1 ~ PAS 2

| 70%~80%| 20%~30%| Slight power assist makes exercise easier
PAS 3| 50%| 50%|

Use power assist to ride faster and farther

PAS 4~PAS 5

| 20%~30%| 70%~80%|

Fast cycling, labor saving

Maintenance and use skills of electric bicycle
The maintenance methods of electric bicycle under different use conditions mainly include the following points
Influence of temperature
Temperature has an impact on the use of lithium batteries. Generally speaking, the impact on the use of lithium batteries at room temperature is not significant, but when the temperature is higher than 40″C or lower than-10’cthe discharge capacity of lithium batteries will change
For example, if the temperature is below 0’C in winter, the effect will be affected. When the battery is fully charged, the driving mileage will be shortened, because under this condition, the battery capacity can only be released by 60%70%. Therefore, the driving mileage when the battery is fully charged in winter will be much less than in summer.

Maintenance method
1, When the temperature is low in winter, the battery should be placed indoors, and the charging should also be carried out indoors. After the battery is fully charged, the charging time should be extended for another two hours
2, In summer, avoid the sun exposure of batteries. Avoid charging the battery at high temperature. Avoid charging the battery immediately after use in high temperature Do not charge for too long. The battery needs to be charged for another one or two hour after the red indicator turns green
3, Avoid exposure to the sun and rain. Although the electric bicycle has good waterproof performance, it can still ride in rainy and snowy weather, but when passing through water puddles and ponding and other roads, pay attention to the wading height, which shall not be higher than the motor, so as to prevent the motor from damage caused by water inflow. Do not use a high-pressure water gun to wash the electric bicycle, so as to avoid damage caused by water entering the electronic parts and accessories
4, Frequent braking is bound to be accompanied by frequent start-up, which will lead to frequent large current discharge and power cut-off of the battery, which has a certain impact on its life. Countermeasures: pay attention to safety when driving, drive at a proper speed, and try to avoid frequent braking.