1. DL manuals
  2. E-Bike
  3. Bicycle
  4. Viper
  5. Instruction Manual

E-Bike Viper Instruction Manual

Summary of Viper

  • Page 1

    1 instruction manual important: this manual contains important safety, performance and service information. Read it before you take the first ride on your new bicycle, and keep it for reference. Content safety warning Ⅰ. Mechanism Ⅰ-1 derailleur Ⅰ-2 stem Ⅰ-3 direction adjustment of front wheel Ⅰ-4 b...

  • Page 2

    2 safety warnings 1. Do not operate your e-bike before reading this user manual thoroughly. 2. Do not disassemble the battery pack and modify the unit or your warranty will be void and you will be responsible for the modification. 3. Wear a helmet and safety equipment. An unprotected head is highly ...

  • Page 3

    3 whole vehicle mark 1. Tyre 2. Rim 3. Spoke 4. Motor 5.Disc rake 6. Fork 7. Brake lever 8. Handle bar 9. Stem 10. Frame 11. Battery 12. Controller 13.Seat post 14.Seat 15.Discbrake 16. Fly wheel 17.Kick stander 18. Derailleur 19. Chain 20. Crank 21. Pedal product definition: power assisted and thro...

  • Page 4: Ⅰ. Mechanism

    4 Ⅰ. Mechanism Ⅰ-1. Derailleur 7 gears derailleur Ⅰ-2. Angle & height adjustment of stem step one: put the stem nuts on the top of fork step two: put on the stem step three: screw the nuts.

  • Page 5

    5 step four: screw top nuts on stem, tighten, but do not over tighten. Ⅰ-2.1 angle adjustment of tool-adjustable stem loosen adjusting screw anticlockwise with internal hexagonal wrench, and then adjust the angle. Handlebar can be adjusted to proper angle by loosing lock screw. Ⅰ-2.2 horizontal angl...

  • Page 6

    6 2. Depress the brake lever about 10 times as far as the grip to check that everything is operating correctly and that the shoe clearance is correct before riding the bike. Front disc brake assemble and adjust..

  • Page 7

    7 rear disc brakes assemble and adjust Ⅰ-5. Saddle adjustment 1. Loosen the lock bolt to adjust cushion angle with a 5mm internal hexagonal wrench as shown in the figure. Range of adjustment is -15°~15°. Note: it is commonly better to adjust the cushion horizontally to the ground line. 2. As shown i...

  • Page 8

    8 figure 1 figure 2 figure 3 3. Cushion with shock absorption/ how to adjust soft or hard effect of shock absorption rotate to loosen the bolt of seat post clamp and pull the whole seat post out according to article 2. Rotate the bolt with 8mm internal hexagonal wrench anticlockwise to make the shoc...

  • Page 9

    9 the size, pressure rating, and on some high-performance tires the specific recommended use, are marked on the sidewall of the tire .The part of this information which is most important to you is tire pressure. Warning: never inflate a tire beyond the maximum pressure marked on the tire’s sidewall....

  • Page 10

    10 1. Check whether rim is deflected or loosened and whether spoke is loosened or broken before riding. If any unusual condition, ask professional technician for adjustment or change. 2. Please change the tyre if cover tyre grain is worn and torn. 3. Please guarantee proper psi. When inflating, plea...

  • Page 11

    11 i-9. Change of pedals left pedal and right pedal should be clarified when changing. Pedal spindle is usually engraved with “r” and “l”. Tool: 15mm open end wrench when changing right side, clockwise rotation is to lock and anticlockwise rotation is to disassemble. When changing left side, clockwi...

  • Page 12: Ⅱ. Electrical Equipments

    12 tightening torque should be more than 18n.M Ⅱ. Electrical equipments Ⅱ-1. Electrical motor external dimension of electrical motor & diagram of coil-out Ⅱ-2 technical indicators and structural of changer.

  • Page 13

    13 Ⅱ-2-5. Maintenance & attentions: 2.1 charger should be used with designated battery strictly according to requirements. It is forbidden to charge non-original battery with this charger. 2.2 charger is dangerous due to the high voltage it contains. If any faults or failures are found, please conta...

  • Page 14

    14 2. Battery discharging riding process of the power assist vehicle is the process of battery discharging. Users are not permitted to over discharging the battery. Over discharging may cause severe damage to battery life. When instrument displays that the battery is under voltage, the controller wi...

  • Page 15

    15 cool place. Places within 1m around the battery should be free of inflammables and is insulating. Battery should be kept away from heavy load and children. Complete additional charging should be conducted every 2 months. 5. Warranty period: 2 years since the date of leaving factory. Special warni...

  • Page 16

    16 iii. Assembly 1. Pedals are marked “l” and “r” for left and right respectively. Screw in clockwise for the “r” pedal and counter-clockwise for “l”. Tighten both with a wrench firmly but not excessively as the crank threads are made of aluminum alloy..

  • Page 17

    17 2. Align the handlebar assembly perpendicular to the front fork. Tighten using the 5mm wrench with 15-18n.M. 3. Turn the handlebar to the desired angle and tighten using the 4mm wrench with 8-10n.M 4. Seat post do not adjust the seat post beyond its maximum extension mark. Always keep a minimum o...

  • Page 18

    18 brake disk to the motor. 5. Front and rear hub assemble front wheel hub assemble with 30-35 n/m with a 18# spanner. Rear wheel hub assemble about 30-35n/m with 15# spanner. Iv: usage iv-1:safety the e-bike is best described as an urban bike and is best suited for usage in an urban environment and...

  • Page 19

    19 b. Wear shoes that stay on your feet and grip firmly to the pedals. Do not wear sandals or ride barefoot. C. Dress to be visible on the road and avoid loose clothes that will tangle with moving parts of the bicycle. D. Keep your speed at levels appropriate to road conditions e. Be aware of wet we...

  • Page 20

    20 wheel rims clean and undamaged? Make sure the rims are clean and undam- aged along the braking surface, and check for excess rim wear. Handlebar and stem: tightened firmly in the ‘face forward’ positions. Brakes squeeze, brake levers: brake cables should remain unobstructed by other cables or acc...

  • Page 21

    21 before every ride: perform mechanical safety checks and use a fully charged battery. Every 10 hours of riding: clean the bike, including chain rings and sprocket. Clean the chain. Check the tension of the screws holding the brake disk to the motor. Every 20 - 30 hours of riding: squeeze the brake...

  • Page 22

    22 reduce fatigue. The height of the saddle and the handlebar changes upon different riders. Normally, the saddle shall be adjusted until the rider can put one foot on the ground (the whole cycle almost stands vertically) and the handlebar shall be adjusted until the rider can stretch forearms comfo...

  • Page 23

    23 cycle or required pressure values in the tyre surface. （ 2 ） when the handlebar is inflexible, seized, rigid or tight, lubrication or adjustment shall be conducted timely. For lubrication, butter, calcium-based or lithium-based grease is normally adopted. When it is adjusted, loosen the locking n...

  • Page 24

    24 rear wheel. 7. This electrically power assisted cycle is not suitable for uneven or much sloppy roads (normally ≤8°). You shall slowly drive or push the cycle forward under such road condition. Due to such bad condition, the service life of the motor, controller and battery will be shortened and ...

  • Page 25

    25 output terminal of the charger and the input terminal of the charger with the grid. After charging is finished, disconnect the grid and then disconnect the charger with the battery. 13. The battery can not be used in the event of undervoltage. It shall be charged immediately. Deep discharge or ov...

  • Page 26

    26 individualized adjustment bicycles are designed in accordance with ergonomics and with proper size, which can not only reduce injuries but also increase comfort. It is normally measured as follows: ride on the cycle and put your feet on the ground; keep 2.5cm from the crotch to the top tube and 5...

  • Page 27

    27 hurt to hips. 6) pedaling skill: put the front 1/3 point of the shoes at the center of the pedals. Your feet movement shall be parallel with the central line of the cycle. If not, the efficiency of pedaling will be reduced. Keep even speed, otherwise you may feel tired. Specially note pulling fun...

  • Page 28

    28 there are some skills as follows: 1) after speed change, move the rear flywheel to the big crankset or move the front big crankset to the small crankset, which can make you feel comfortable and keep the speed. 2) utilize the strength of the upper body: grasp the lower part of the downturn grip, s...

  • Page 29

    29 Ⅴ. Quality guarantee 1. In accordance with the contents of the guarantee, you can enjoy the original quality assurance and after-sales service. 2. Apply for a free repair, held this warranty, the bicycle with you, directly contact to the original purchase store. 3. There is a frame number of all ...