Serfas DART 500W Step-Over Manuale utente
DART 500W / DART 350W
OWNER’S MANUAL
SERF AS
®
SERFAS DART 500W / DART 350W
OWNER’S MANUAL
Thank you for purchasing a Serfas Dart 500W/350W ebike! Before riding, please take a
moment to review these instructions.
Need service or support? Visit our website for quick answers, manuals, and/or give us
a call and we’ll find you a solution.
Serfas, Inc
2333 W Utopia Rd
Phoenix, AZ 85027
Phone: 1-(800) 424-0047
Email: [email protected]
Version 1 (March 1, 2020)
Latest version can be found: www.serfas.com
Dart 500W / Dart 350W
Step-Over
Dart 500W / Dart 350W
Step-Through
CONTENTS
Display / Control Specifications 1
Getting Started 2
What’s on the Display? 3
Using the Controls 4
Customizing the Display 5
• Function 01P
• Function 02P
• Function 06P
Backlight Brightness
Unit of Measure
Odometer Reset
6
7
8
9
10
13
14
16
Battery and Charging
Maintenance and Service
Storing Your Bike
Safety
Error Codes and Troubleshooting
Additional Troubleshooting
Battery Troubleshooting
Frequently Asked Questions
Warranty Information 19
1
DISPLAY / CONTROL SPECIFICATIONS
•36 Volt Power Supply (350W)
• 48 Volt Power Supply (500W)
• Current Rated: 10mA
• Maximum Operating Current: 30mA
• Power Off Leakage Current < 1uA
• Operating Current to Controller: 50mA
• Operating Temperature: -18º to 65ºC
• Storage Temperature: -30º to 80ºC
Figure 2
M BUTTON
___
SERFAS EBIKE OWNER’S MANUAL
Figure 1
POWER SWITCH
____
Figure 3
CHARGING PORT
___
GETTING STARTED
The Dart 500W/350W is operated using the control pad on the
handlebars. The control pad is located near the left-hand brake lever.
First, push the power button on the battery to turn on (Fig. 1). The
current charge level will be temporarily displayed on the LEDs (4=full,
1=near empty), then one green LED to show the battery is turned on.
Next, press and hold the M button on the handlebar controls to turn
on the display (Fig. 2). Display should light up. Now, your e-bike is ready
to ride. To turn off, press and hold M for 3 seconds. The battery will
automatically turn off.
The Dart 500W/350W bike offers pedal assist. When using pedal assist,
an electric motor supplements the riders own effort. To use the pedal
assist, simply start pedaling, then push the 'U' arrow to increase assist
or 'D' arrow to decrease pedal assist (Fig. 2). 0 is the lowest 5 is the
maximum. Pedal assist will engage at speeds up to 28 MPH (Dart
500W) or 20 MPH (Dart 350W).
The � Dart 500W/350W ebike is equipped with a throttle, which is
mounted near the rider’s left thumb, to propel the bike without
pedaling. To use the throttle, start pedaling (one pedal revolution)
then push down on the throttle while pedaling. Once the bike is
moving on throttle power, you can stop pedaling entirely and use
your thumb to control the speed of the bike. The throttle can propel
you at speeds up to 20 MPH.
The motor stops when you:
1) Stop pedaling 2) Squeeze the brake levers 3) Release the throttle.
Simply start pedaling again and re-engage the motor.
2
SERFAS EBIKE OWNER’S MANUAL
WHAT’S ON THE DISPLAY
While you are riding, you can use the display to monitor your
speed, the amount of pedal assist, battery life remaining, and
other data.
As shown below, your Dart 500W/350W uses an LCD display
screen that looks like this:
SPEED INDICATOR
(Current / Max / Average)
5 LEVELS OF ASSIST
(0: No Assist. 5: Max Assist)
WALK MODE
(On / O)
DISTANCE INDICATOR
(Current Trip / System Mileage)
ERROR CODE INDICATOR
(In the Event of a Problem)
BACKLIGHT INDICATOR
(On / O)
BATTERY LEVEL INDICATOR
(Current / Max / Average)
VOLTAGE OUTPUT INDICATOR
(Real-Time)
3SERFAS EBIKE OWNER’S MANUAL
4
USING THE CONTROLS
START UP: To turn on your bike, push the power switch on the battery
(Fig. 1), then press and hold the “M” button for 3 seconds (Fig. 2).
To turn off, press and hold the “M” button for 3 seconds (Fig. 2), then
press and hold the power button on the battery for 2 seconds. The
display and battery have an energy-saving feature, if there is no
activity for 10 minutes, they will turn off automatically to preserve
battery life.
Push the “U” or “D” arrows to change the level of pedal assist (Fig. 2).
Hold “U” and “M” for 3 seconds to switch between showing real-time
speed, average speed, and max speed (Fig. 2).
Push “M” to toggle between the display of the Odometer, Trip
Distance, Voltage, and Elapsed Time.
BACKLIGHT: Press and hold “U” for 3 seconds to enable the
backlight on the display. Press and hold “U” again for 4 seconds
to turn it off (Fig. 2).
WALK MODE: To enable walk mode, first come to a complete stop
and stand next to the bike. Press and hold “D” for 3 seconds. The bike
will slowly move forward at 3.5 MPH / 6 KPH as long as you hold the
“D” button. This feature is useful for pushing the bike up a hill or
walking through a crowd, where you cannot safely ride.
“Super walk mode” is an even-faster version of walk mode. To use it,
hold the down arrow to engage standard walk mode, then press the
throttle. This is useful on very steep climbs or when towing a trailer.
Use caution with both walk modes.
SERFAS EBIKE OWNER’S MANUAL
CUSTOMIZING THE DISPLAY
You can use the settings features of the display to customize the
Dart 500W/350W for your use. To enter the “Settings” mode,
hold the “U” and “D” buttons at the same time for 2 seconds.
You can customize 3out of the 6 different functions on the
display. Push the “M” button to move from function to function,
and use the “U” and “D” arrows to adjust each to your
preferences. When you are finished, press and hold the “M”
button to save your changes. Note: The system will save your
changes automatically after 8 seconds.
FUNCTION 01P - BACKLIGHT BRIGHTNESS
You can control how bright you’d like the display backlight
to be. 1 being the dimmest and 3 is the brightest.
FUNCTION 02P - UNIT OF MEASURE
You can toggle between miles or kilometers, based on your
location and preference.
FUNCTION 06P - ODOMETER RESET
The odometer tracks the distance you’ve ridden over the
lifetime of your bicycle. Press and hold “U” for 5 seconds to
reset the trip distance from a single trip.
5SERFAS EBIKE OWNER’S MANUAL
BATTERY AND CHARGING
The Dart 500W/350W uses a Lithium-Ion battery which can be
charged on or off the bike. We recommend charging the battery
off the bike indoors, in moderate temperature conditions. To
charge the battery, plug the charger into the charging portand
then connect the charger to a wall outlet (Fig. 3). The LED
indicator light will be red when charging and will turn green
when charging is complete. When finished, unplug the charger
from the battery and from the wall outlet.
Take care of the battery to ensure a long service life:
• Charge and store the battery indoors if possible. The
battery can be removed from the bicycle for this purpose.
• Avoid extreme hot and cold temperatures.
• DO NOT submerge your bike or any of the components in
water. This action will void the warranty.
To optimize the performance of the battery over time, try and use
it (discharging and charging) at least monthly. But if you won’t be
riding your Dart 500W/350W for an extended period of time, it’s
best to store the battery fully charged. EVERY 2 MONTHS: Put
battery on the charger to maintain optimum level.
After many charging and discharge cycles, runtime and range will
be reduced. Replacement batteries are available from Serfas to
extend the life of your ebike. The lifespan of the battery is about
500 charge / discharge cycles for properly maintained batteries.
When you install the battery on the Dart 500W/350W, it locks into
place automatically. To unlock for removal, use the supplied key.
DO NOT ride the bicycle if the battery rattles or moves - it
should be firmly attached.
The Dart 500W/350W battery contains a USB port for transmitting
diagnostic data only, not for charging. It will not charge or power
devices via USB.
6
SERFAS EBIKE OWNER’S MANUAL
MAINTENANCE AND SERVICE
• When cleaning your bike, use a damp cloth and gentle dish
soap. Note: DO NOT use a pressure washer or sprayer.
• Periodically apply a light lubricant to moving parts,
including the links of the chain, derailleur pivots, and shifter
cable inner wire where it enters the cable housing.
• If you ride in wet / humid environments clean and dry
electric connections and apply an anti-corrosive.
All bicycles will need a periodic tune-up or adjustments by a
professional. An annual “check-up” is beneficial. Your bike’s
service schedule will depend on the frequency of its use. In
between expert services at a bike shop, we suggest:
• Keep tires inflated to their recommended pressure (30-50
PSI / 2.0-3.5 BAR / 200-350 KPA) and check weekly.
• Clean the drivetrain and lubricate the chain (monthly)
7SERFAS EBIKE OWNER’S MANUAL
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