Daymak Utility Product guide

Utility Manual Book
Protect the Environment Safeguard the Planet

Table of Contents
1. Electric vehicle component description and indicator function
2. Essentials of safety riding
3. Operation instruction & notice
4. Electric vehicle’s check, maintenance and quick-fix
5. Main specification and electric scheme
6. Malfunction & Troubleshooting
1. Electric vehicle components name and indicator function：
★Each component name and its position
Figure 1
1-Back wheel 2- motor 3-rear lamp, rear turning lamp 4- rear stock rack 5-controller 6- rear
shock absorber 7- seat 8- charger 9- battery 10- support 11- rearview mirror 12-
instrument 13- front lamp，front turning lamp 14- front box 15-front shock absorber
16- front wheel 17- motor number 18- frame number 19- charger plug 20- name plate 21- model
22- mark
★Actuation device name its place
Figure 2
1- Rear braking bar 2- left handlebar 3- turning lamp switch 4- front lamp light variation
switch 5- horn switch 6- instrument 7- general electric lock 8- general lamp switch 9-
front braking bar 10- gearing turning bar

★Instrument and indicators
No.
Description
Function
1
Head lamp light
variation indicator
Indicate status of head lamp
2
speedometer
Indicate current speed of vehicle
3
odometer
Indicate accumulated mileage of vehicle
4
Turning signal lamp
Blink when vehicle is turning
5
Charger indicator
Show working condition of charger
6
coulometer
Show power level of battery
2. Essentials of safety riding：
★Check the vehicle before riding, so as to avoid accident. The main checking items are: abundance of electric
power, reliability of steering and braking device, normality of tyre pressure, normality of all appliance signal
and other indicators.
★As to avoid other harms to motorized vehicle, the drivers should follow the following instructions:
a. Wear bright garment；
b. not too close to other vehicles；
c. obey transport regulations, do not race for traffic；
d. turn on turning lamps when turning, to make somebody’s attention；
e. carefully ride at crossovers, entrance of parking area；
f. do not ride by single hand；
g. do not carry extra people or stuff；
h. do not make sharp brake on raining days or wet road, should brake in advance to slowdown.
★G arm ent p rotecti on
a. Driver should wear helmet, eyeglasses and gloves；
b. do not wear loose garment so as to avoid stripping operating bar and pedestrian.
★Loading up
a. Do not load high-weighted stuff. Over-load will affect vehicle performance and would be dangerous.
b. Securely fix cargo on the vehicle to ensure a safe drive.
c. Do not hang anything on handlebars, so as not to affect normal driving.
★D o not fl ush the vehi cl e di rectl y w hen cl eani ng , so as to avoi d short ci rcui ti ng by dampness.
3. Operating instructions & notice
★Starting up
a. Withdraw main kickstand or side kickstand；
b. Driver sits on seat, insert the key to electric lock cylinder, turn clockwise to ON position, so as to turn on
power；
c. Turn speed regulating handle towards inner side slowly, to make start-up.
Notice: When general electric lock is turned on and rear wheel is landed, the driver is not seated, do not turn
speed regulating handle preventing from abrupt forwarding of vehicle which will results in accidents easily.
★Speed shifting
Turn speed shifting bar towards inner side (counterclockwise), vehicle will accelerate; turn it towards outer side
(clockwise), the vehicle speed will be lowered.
Attention: Turn speed shifting bar slowly so as to ensure safety driving and reduce mechanical failure.
★Turning
a. Turn the switch on the turning lamp switch towards the desired direction, turning lamp start to blink;
b. Press the button after turning, the turning lamp went out.
Attention: Turn off turning lamp at once when the turn is over, so as to avoid confusion and accident.
★Braking
When tightening front and rear wheel braking bar, braking front & rear wheel respectively.
Attention: Though the vehicle has the feature of disconnection protection when braking(both front and rear
wheel), driver needs to build the habit of resetting the speed shifting bar so as to avoid overturn and side list.
★Parking
a. Turn off general power switch and air switch located below the seat prior to parking；
b. Lower the main kickstand and side stand to securely park the vehicle；

c. Turn the key counterclockwise to “OFF” position, to lock the fork lock prior taking out the key.
★Charge
a. Turn off general power switch;
b. Open the seat and take out stock charger, plug to output charging socket at the electric vehicle, and then to
power socket. The average charging would take 3 to 8 hours, and do not use the electric vehicle when it is
undercharged with electricity.
c. After charging, unplug and coil it, then put it back to the seat.
Attention: The charger is specified made by our company, do not use other charger. Try not to use quick charger
in case of shorten battery life.
d. Charging should proceed in condition of good ventilation not in the environment with corrosive gas or
inflammable condition.
e. If the battery need a long-time storage, should be store in full battery and be recharged every month.
f. Once found high temperature of battery when charging or abnormal in charging indicator, which indicating
malfunction in battery or charging circuit, should disconnect charging immediately and repair it by
professional.
g. Charge battery in time after each driving, which is good to battery life. Ambient temperature will greatly affect
battery, i.e. charged battery driving mileage will fall in winter or cold area, which is deemed normal; it will get
back to normal once temperature rises.
4. Electric vehicle’s check, maintenance and quick-fix
★Daily check & maintenance
a. Checking items of each drive:
①If turning lamp, braking lamp and horn are normal;
②Flexibility of steering mechanism;
③Reliability of braking operation;
④If any indicators are normal;
⑤Eliminate the abnormality once it is found.
b. Regular checking items
①Reliability of all fastenings, screw it tight once found unsecured;
②Check tightness and breaking off of all cable connections, reconnect it once found;
③Check tyre pressure. Charge them to 1.75/1.85 kg once found under pressured;
④Check if tyre is broken or wore out, if groove depth is less than 2mm or appear chap or broken in appearance,
should replace the tyre immediately.
★Adjustment of front & rear brakes
①Free travel of front & rear braking bars is 10 to 20mm;
②Braking bar travel length should not exceed 3/4 of all travel length when front & rear brake is at the tightest.
Adjust the travel length by adjusting regulating nut, right screw to decrease, left screw to increase; try clasp
several times to ensure the requirement is met, otherwise readjust it. Ensure adjusting nut concave area
should embedded at cylindrical plane of braking arm cylindrical pin after adjustment. Front & rear wheels
should act freely if they’re within the range of free travel.
★Regular maintenance items and time table
To ensure safe driving and elongate vehicle’s life, maintain the vehicle to the following.
A. check, adjust, clean (replace when necessary) LLubrication C Clean
Item
Travel mileage(KM)
200
1000
3000
5000
8000
10000
12000
Motor bearing
A
C
C
Controller
A
A
Charger
A
A
Front & rear braking block
A
A
A
Wheel bearing
A
C
A
C
C
A
Front & rear shock absorber
A
A
Front fork bearing
A
A
Tyre
A
A
A
A
A
A
A
Main & Side kickstand
A
A
A
Lubrication of all position
L
L
L
L
All bolts and nuts
A
A
A
A
A
A
A

5. Main specification and Electric scheme
Description Overall
weight Standar d load Max. velocity
Braking
in dry
conditio
n
20Km/h
Braking
in wet
conditio
n
20Km/h
Noise
EEC series electric vehicle ≤110kg ≤75kg ≤50Km/h ≤4m ≤15m
≤60dB(A
)
Battery
Volume
72V20Ah
Nominal Voltage
72V
Model Lead-acid battery
Motor
Motor type
Rare earths permanent magnet brush rotor variable motor
Brushless stator DC motor
Nominal power
500W
Efficiency
≥80
％
Output torque
≥12N.m
Rotating speed(void)
450±20r/min
charger
Input voltage
110V-220V/50-60Hz
Output voltage
75±2V
Charging current
2.5±0.2A
Temp. control/temp.
volume
＜40℃
Controller
Under voltage
protection
63±2V
Over current
protection
≤25A
conductibility ≥95％
Electric scheme

6. Malfunction & Troubleshooting
No
Malfunction
description
Cause of malfunction Troubleshooting
1
Speed shifting
not functional, or
low velocity of
high shift
Under voltage in battery
；
1) L
oose connection of magnetic steel in
speed shifting bar；
2) Spring chucked or failure in the bar
；
1) Charge the battery to fullest
；
2) Clamp it tight after welding；
3) Replace the spring by supplier；
2 Motor not work after cable
connection
1) Affect power disconnection by braking
knob not return to normal position；
2) Loose connection to battery；
3) L
ooseness in magnetic steel of shifting
bar，loose connection；
4) Loose motor connection or broken；
5) Fuse is gone；
1) Push the knob outwards
；
2) Reconnect in repair；
3) C
lamp after welding or
reconnect；
4) Repair at the store；
5) Check fus
e, or stat the same
after replacement, repair by
professional
；
3
Short driving
mileage after
charging
1) Low tyre pressure
；
2) I
nsufficient charging or charger
malfunction；
3) Battery aging or damage；
4) M
any ramps, strong against wind,
frequent braking & startup, heavy load；
1) Charge it full
；
2) Charge full or check charger’s
plug；
3) Replace the battery；
4) T
ry to reduce the chance of
braking and mentioned
situation
；
4 Charger not working
1) Charger socket split off or loosened
；
2) Battery fuse broken；
3) Battery connection broke off
；
1) Fasten socket and connection
；
2) Replace the fuse；
3) Weld connection
；
5 others
1) When you met situations you cannot
eliminate by using
above instructions or
cannot determine；
2) I
nternal broken in motor, controller,
charger, power supply and battery unit
；
When you met mentioned situation
above, please go to the supplier
or repair station, do not open the
component, otherwise will
invalid the warranty.
6
Powerless in
motor and make
ticking noises
Low power in battery
Charge it immediately
PRODUCE BY
WUXI XUFENGELECTRIC BICYCLE CO. LTD
143 Xixian Road
New District – Wuxi
CHINA