DYU Smart Electric Bike D3F Instruction Manual

Product Function Diagram

The following lists the components of the DYU Smart Electric Bike D3F:

• 01. Battery Level Display
• 02. Bell
• 03. Left Handlebar Grip
• 04. Accelerator
• 05. Right Brake Lever
• 06. Left Brake Lever
• 07. Power on/Off Button
• 08. Tube
• 09. Folding Handle for Tube
• 10. Front Light
• 11. Front Fork
• 12. Tire
• 13. Wheel Hub
• 14. Disc Brake Rotor
• 15. Front Wheel Reflector
• 16. Disc Brake Caliper
• 17. Front Mudguard
• 18. Frame
• 19. Pedal
• 20. Crank
• 21. Battery Box
• 22. Chain
• 23. Rear Tire
• 24. Kickstand
• 25. Rear Reflector
• 26. Rear Mudguard
• 27. Seatpost Clamp
• 28. Seatpost
• 29. Saddle

Note: Some details of your bike may differ slightly from the diagram due to product upgrades, which will not affect usage.

List of Accessories

• Pedal (x2)
• Charger (x1)
• Instruction Manual (x1)
• Warranty Card (x1)
• Inner hexagon spanner (x1)
• 15mm Single open wrench (x1)
• Fender (x1)
• Child seat (optional)

Quick start unfolded folding: [Image description: A diagram showing the quick start unfolded folding process of the electric bike.]

Mount the pedal clockwise rotation: [Image description: A diagram illustrating the clockwise rotation for mounting the pedal.]

Function

1. Installation: After unpacking, loosen the handlebar and quick release. Adjust the horizontal handlebar to the correct direction, lock the horizontal handle, and gently hold the brake levers several times to adjust the brake lines to the best condition.
2. On/Off: Press the switch button on the left handlebar to turn on the E-bike; the dashboard will light up. Press the switch button again to turn off the E-bike.
3. Charging: Connect the charger to the power plug and then to the E-bike. The charger indicator turns green from red when fully charged.
4. Battery status: After booting, the dashboard lights up and displays the electricity level with four grids, corresponding to high, medium, and low power.
5. Braking: Use disc brakes. You cannot speed up before the brakes are fully released.
6. Headlight: The headlight is in manual control mode. Press the control button under the meter for 3-5 seconds to turn the light on/off.
7. Zero speed booting: When the E-bike is in standby mode, you can accelerate using the speed control.
8. Speed up: Please accelerate the E-bike slowly. Do not twist the throttle bar too hard to avoid damage.
9. Cruise control: While riding, keep the handlebar stationary and maintain a constant speed for 8 seconds. If you release the handlebar, it will maintain the constant speed. Braking or accelerating again will cancel the cruise function.
10. Electric mode and Assisting mode: The default mode of the E-bike is assisting mode, with one gear. While in assisting mode, the electric mode can also be used.

Diagrams:

• [Image description: A diagram showing the DC 2.1 charge port.]
• [Image description: A diagram showing the handlebar controls, including the switch button and cruise button, and a bell.]

Parameters

Note: The maximum speed may vary depending on battery level, load, tire pressure, terrain, lubrication state of the chain and bearings, etc. The ranges are determined upon tests at an ambient temperature of 25°C (or 77°F), at a speed of 15 to 20 km/h (or 9.32 to 12.43 mph), on smooth and firm terrain, with a load of 120 kg (or 264.55 lbs.), and within an uninterrupted period from full to zero battery level. The ranges may vary depending on riding behavior, ambient temperature, load, tire pressure, terrain, etc.

CAUTION

• Charge between 0°C and 45°C. Ride between -20°C and 60°C. Keep the battery dry. Do not expose it to acid and alkalinity fluid. Avoid rain, fire, and heat. Do not place the battery with incorrect polarity. Do not damage or disassemble the battery, or use the wrong adapter. Do not charge for over 6 hours or over 2A.
• When not using for a long time, please put the battery in a dry and cool place and charge it for 2 hours every 2 months. Follow the instructions; otherwise, the user will be responsible for the consequences.
• When charging, be careful of the battery type and voltage. Place the battery in open air and do not expose it to bright sunshine or enclosed spaces.
• When charging, place the battery first, then connect the electricity. After charging, disconnect the electricity, then disconnect the battery plug. When the green light is on, turn off the power. Do not connect the battery when not charging.
• If the indicator light shows abnormal behavior or a strange smell is detected, or the charger is overheating, stop charging immediately, check, repair, or replace the charger. If something falls into the charger, especially water or other fluids, do not use the charger. If possible, place it in a cool box. Do not disassemble the charger yourself.
• Please check the brake before riding.
• Please brake the rear wheel first.
• Be careful of brake tightness; use the hexagon wrench if loose.
• Rainy and snowy days require a longer braking distance.
• Suitable age: 16-45 years old.

Riding

• Read the instructions first to understand the product's performance.
• Do not lend the e-bike to someone unfamiliar with it.
• Wear a helmet when riding. Obey traffic rules and do not ride on car roads or crowded roads.
• When going downhill or on slippery roads, the speed should be under 15km/h.
• Inspect the tires before riding. Tire pressure should be 35-45 PSI.
• Do not impact the motor excessively; keep the axle smooth.
• Do not overload. (Max load is 120kg)
• Be careful of the stopping distance on rainy and snowy days.
• Riding with one hand is prohibited.

Maintenance

• The front and rear wheels of the E-bike should be centered on the frame.
• Park the E-bike in a cool and dry place after riding.
• Frequently check the motor and brakes. Do not apply oil to the brakes.
• Regularly check the E-bike, screws, and other parts that require fixing.
• Suggested torsion: Handlebar screws 60-80 kgf.cm, handlebar stem screws 175-200 kgf.cm, wheel screws 320-450 kgf.cm.
• Check tires for punctures and leaks. Contact a professional technician for repair and replacement.

Responsibility announcement

• All product model, type, and related information copyrights and explanation rights are reserved.
• This instruction is suitable for the denoted models.
• Any changes or replacements of E-bike parts will not be informed again.
• No copying, modification, propaganda, or publication is allowed without prior permission from F-wheel.
• Read and follow the instructions; otherwise, the user will be responsible for any damage.
• DYU is not responsible for injuries, casualties, or property damage.
• For more information, please visit: www.dyucycle.com.

Contact Information

Manufacturer: Shenzhen DYU Intelligent Mobility Technology Co., Ltd

Website: www.dyucycle.com

[QR Code: DYU E-bike Owners Group]