Magnum Ranger User manual

www.magnumbikes.com
Ranger
PLEASE READ ME FIRST

1. GENERAL INTRODUCTION
1.1 Welcome ................................................................................................................................................................... 01
1.2 Use of the Manual ..................................................................................................................................................... 01
1.3 Service and Technical Support .................................................................................................................................. 01
1.4 Bike Components ...................................................................................................................................................... 01
1.4.1 Handlebar .............................................................................................................................................................. 01
1.4.2 E-bike ..................................................................................................................................................................... 02
1.5 Technical Data .......................................................................................................................................................... 02
2. INSTALLATION AND ADJUSTMENT
2.1 Handlebar and Stem Assembly .................................................................................................................................. 03
2.2 Assembly of the Pedals ............................................................................................................................................. 04
2.3 Seat Position ............................................................................................................................................................. 05
2.4 Saddle Height ........................................................................................................................................................... 06
2.5 Saddle Adjustment
................................................................................................................................................... 06
3. BATTERY & CHARGER
3.1 Overview ................................................................................................................................................................... 07
3.2 General Remarks ...................................................................................................................................................... 07
3.3 Installing and Removing the Battery .......................................................................................................................... 07
3.4 Charging ................................................................................................................................................................... 07
4. DISPLAY .................................................................................................................................................................... 08
5. RECOMMENDATIONS AND MAINTENANCE
5.1 General Requirements .............................................................................................................................................. 17
5.2 Maintenance Schedule .............................................................................................................................................. 17
5.3 Definition of Tampering and Recommendations ........................................................................................................ 17
6. WARRANTY ............................................................................................................................................................... 19
CONTENTS

01
1. General Introduction
1.1 Welcome
Thank you for purchasing a Magnum electric bike and welcome to the Magnum Bikes family of e-bike enthusiasts. We
encourage you to join our Facebook group “Magnum Bikes Community” which you can find at the following link:
https://www.facebook.com/groups/389290978573773
Our Facebook group is a place for Magnum riders to ask questions, have discussions, share recommendations and
experiences and connect with other Magnum Bike enthusiasts.
1.2 Use of the Manual
We encourage you to read this manual thoroughly before you take your new E-bike for a ride. It is important not to overlook
the safety instructions and explanations of both traditional and non-traditional bike parts, as this will offer you a general
understanding of your new E-bike. This manual is designed to help you get the most out of your E-bike, and so we have
attempted to answer as many of your potential questions as possible. Please take a moment to read through the various
sections before you get in the saddle.
1.3 Service and Technical Support
This manual is intended as a general overview of your new E-bike, and is therefore not an extensive reference. For
technical support, including information about service, maintenance and repairs, please consult your dealer. You can visit
our website (www.magnumbikes.com) for more information about our products and technology, or to find a dealer close
to you.
1.4 Bike Components
1.4.1 Handlebar
GENERAL
1. Left Brake Lever
2. Left Grip
3. Display Controller
4. Display
5. Adjustable Stem
6. Right Brake Lever
7. Rear Shift Lever
8. Right Lever
9. Bell
10. Throttle
2 8
7
9103
6
4
1
5

8
9
14
13
11
12
16
17
20
18
19
21
5
3
4
2
1
7
10
6
15
Component
Das-Kit, X15-fat rear drive motor, 48V 750W(Max power)
I5-4813, 48V 13Ah, 768Wh, with USB port
Das-Kit, C7, LCD, 6 levels
T6-20
RST, GUIDE 26"
Prowheel, 48T
Tektro, Hydraulic brake lever with Front/Rear brake sensors
Front/Rear: Tektro hydraulic disc brake
Shimano, Acera, 8-speed
8-speed, 11-32T
CST, 26*4.0"
Spanninga, Swingo-F
Spanninga, Solo
308lbs
20mph throttle, up to 25mph with pedal assist
Motor
Battery
Display
Throttle
Front Fork
Crankset
Brake Lever
Brake
Derailleur
Freewheel
tire
Front Light
Rear Light
Max Speed
Max Loading
(including bike)
Ranger 26" 48V
02
15. Front Disc Brake
16. Adjustable Stem
17. Frame Number
18. Front Light
19. Mudguard
20. Front Fork
21. Tire
1. Rear Light
2. Motor
3. Freewheel
4. Rear Derailleur Protector
5. Rear Derailleur
6. Rear Disc Brake
7. Carrier
8. Saddle
9. Saddle Quick Release
10. Chain
11. Pedal
12. Crankset
13. Controller
14. Battery
GENERAL
1.4.2 E-bike
1.5 Technical Data

2. INSTALLATION AND ADJUSTMENT
2.1 Handlebar and Stem Assembly
4mm
5mm
5mm
1. Open the top cover, align the stem with the head tube
and slide it on. Tighten the screw at the top of the stem.
2. Align the handlebar to be perpendicular to the wheel,
then insert and tighten the two side-facing screws as
shown below.
3. Move the handlebar up or down to adjust to the
desired angle, then tighten the rear-facing screw at the
top of the stem to lock the handlebar in place.
4. Close the cover to complete installation and
adjustment.
Screw for adjusting the
handlebar position
03
INSTALLATION AND ADJUSTMENT

INSTALLATION AND ADJUSTMENT
04
L
R
2.2 Assembly of the Pedals
- Identify your pedals: check the letters on the pedals, "L" or "R".
- The "R" marked pedal is for the right (when facing the forward direction). For attachment to the crank, tighten clockwise.
- The "L" marked pedal is for the left. For attachment, tighten counterclockwise when facing directly.
WARNING:
First screw on the pedals by hand, then tighten with the wrench provided.
RL

INSTALLATION AND ADJUSTMENT
Optimal
Too low Too high
2.3 Seat Position
To enable comfortable, fatigue-free and safe riding, the saddle and handlebar height should be adjusted to the body size
of the rider.
The saddle height is correct if the leg is near full extension while the foot is resting flat on the pedal in the bottom position
of the crank cycle. The toes must still be able to touch the ground comfortably.
05

INSTALLATION AND ADJUSTMENT
06
MIN INSERT
4
2.4 Saddle Height
The quick-release lever must require noticeable effort to put into fully closed position to prevent any undesired movement
while riding.
WARNING:
An improperly closed quick release lever can open again or have limited ability to keep the saddle in place. This may cause
the saddle to suddenly drop into the seat tube, potentially leading to serious falls and injury.
There is a minimum insertion line marked on the seat post (failure to
observe the minimum insertion line can result in serious injury);
please ensure the seat post is always inserted into the seat tube
beyond this line (the line must be inside the seat tube).
-Loosen the quick release lever at the top of the seat tube, determine
the appropriate saddle height and tighten the clamp.
-The clamping force can be adjusted by adjusting the bolt on the
quick release lever.
-The quick release lever must be closed with considerable counter
pressure.
2.5 Saddle Adjustment
The saddle can also be tilted and adjusted in the forward/back
direction.
- Loosen the bolt at the bottom (4).
- Adjust the saddle tilt by pressing down on the front or rear of the
saddle
- Move the saddle forward or backward to adjust for arm/torso length
and desired riding position.
- Tighten the bolt (4) to secure the saddle.

07
3. Battery & Charger
3.1 Overview
A Battery
B Charging Socket
C Battery Handlebar
D Capacity Level Light
E Power Button
F USB Port (output: 5V 700mA)
WARNING: (Sticker on the battery)
Please ensure that the battery is locked in place before use.
A AC Plug (type will vary)
B Charger
C Charging Indicator
D Battery Plug
3.2 General Remarks
Stop charging the battery immediately if you notice anything unusual, such as smoke or a strange smell; take out the
battery and store it outside of the house, then take the battery to an authorized dealer or experienced technician for
service or replacement.
In the unlikely case that the battery catches fire, do NOT attempt to put it out with water. Use sand or another fire
retardant instead and call emergency services immediately.
3.3 Installing and Removing the Battery
The battery (1) is secured with a lock.
-Unlock the battery and pull it out with the handle (2).
-Insert the battery (1) into the frame until it stops.
-Remove the key from the lock (3). Ensure that the battery is well secured.
3.4 Charging
Charging at temperatures below 32°F (0°C) or above 140°F (60°C)can cause the battery to charge insufficiently and can
be harmful to the life of the battery.
During charging, the charger’s LED light will be continuously red.
Charging is completed when the charger’s LED turns green.
BATTERY & CHARGER
1 1
23
AC B
F
E
D
C
B
D
A

DISPLAY
08
4. Display
Instruction Manual
4.1 APPEARANCE
A Better Display. A Smart Display.
Easy View 4" Display Panel.
Superior Anodizing Aluminum Alloy Frame.
PMMA Waterproof Cable Housing.
Easy Control with Large Buttons.

DISPLAY
09
4.2 NORMAL OPERATION
4.1 PAS LEVEL SELECTION
4.2 ERROR CODE INDICATOR
4.3 WALK MODE
4.4 SET OPERATION
section 4
section 3
section 2
section 1
section 5
section 6
5.1 DISTANCE INDICATOR
5.1.1 ODO
5.1.2 TIME
5.1.3 TRIP 1
5.1.4 TRIP 2
6.1 BATTERY INDICATOR
6.2 POWER SAVING
CURRENT INDICATOR
UP
ON/OFF
SET
DOWN
3.1 BACKLIGHT
3.2 SPEED INDICATOR
3.3 KM/H AND MPH

DISPLAY
10
FULL VIEW AREA
NORMAL VIEW AREA
With the display on, the default indicators are riding mode, trip 2, speed, PAS level, and battery indicator as shown in the
figure below.
Press SET to change the display information.

DISPLAY
11
Section 1: ON/OFF
Press ON/OFF to activate the display. With the display on, press ON/OFF for 2 seconds to turn off power. With the
display off, there is no battery power consumption.
The panel will power off automatically when speed is 0 mph for 5 minutes.
Section 2: CURRENT INDICATOR
The current indicator shows the present discharging current of the controller: each segment is 2A, six segments are ≥
12A.
(The bar graph shows the power output of the motor in real time. 1 bar indicates low power, full bars maximum power.)
Section 3:
3.1 BACKLIGHT
Press ON/OFF to turn on the backlight. Press it again to turn off the backlight.

DISPLAY
12
3.2 SPEED INDICATOR
The central area displays the current riding speed of the E-bike. The speed display is as below.
3.3 KM/H and MPH
Selecting KM/H or MPH for the speed and mileage will switch all indicators to the selected unit of measurement.
Section 4: OPERATION
4.1 PAS LEVEL SELECTION
Press UP (+) or DOWN (-) to change the PAS level and thus change the power output of the motor. The default mode is
PAS 1 and assistance ranges from level 0 to level 6. Level 0 provides no assistance from the motor.

DISPLAY
13
4.2 ERROR CODE INDICATOR
If there is something wrong with the electronic control system, the display will flash at 1Hz and show the error code
automatically. Different error codes represent different faults in the system, consult the error code table on the last
page for details(4.3).
The display cannot return to normal status until the problem is solved, the E-bike’s electric components will not
operate if there is an error in the system. However, the bike can still be operated conventionally (without electric
assistance).
Hold ON/OFF and SET at the same time to show the error code.

DISPLAY
14
4.3 WALK MODE
Hold DOWN (-) for 2 seconds to enter the power-assisted walk mode. When the 6KM icon is lit, the E-bike will travel at
3.7 mph without the need for the rider to pedal. Assisted walk mode will end when the DOWN (-) button is no longer
being held.
4.4 SET OPERATION
4.4.1 KM/H and MPH
Hold UP (+) for 8 seconds to enter the unit of speed selection mode, then press UP (+) or DOWN (-) to switch between
KM/H and MPH and press SET to confirm and exit.
4.4.2 Trip 1 Distance
On the Trip 1 display, press the SET button for 2 seconds and the display icon will flash at 1 Hz, and keep holding SET
for 2 more seconds to clear Trip 1.
Section 5:
5.1 DISTANCE INDICATOR
With the display on, press SET to select between ODO, time, trip 1 and trip 2.
5.1.1 ODO
The ODO (odometer) records the riding mileage from the very start of the display’s usage;
5.1.2 Time
The riding Time indicator is automatically reset when the display is shut off.
5.1.3 Trip1
Shows the riding distance of this time.
5.1.4 Trip2
Trip 2 shows the previous riding distance for 30s after tthe display is turned on; it can be reset automatically to start to
record the current session’s mileage.

DISPLAY
15
Low battery flash
Section 6:
6.1 BATTERY INDICATOR
6.1.1 Battery Residual Capacity Indicator
The battery capacity indicator has five segments, each segment representing 20% of battery capacity. When the battery
is full, the five segments are all lit. If the battery is low, the battery display area will flash, indicating that pedal
assistance will soon cease and that the battery needs to be recharged.
6.1.2 Battery Voltage
The present voltage of the battery is displayed above the battery capacity indicator.
6.2 POWER SAVING
When the riding speed is 0 mph for 5minutes, the system will power off automatically to save battery.

Definition
Normal
Current error or MOS (semiconductor) damaged
Throttle error (detection after turning on)
Motor missing phase (losing power)
Hall signal error (electromagnet in incorrect position)
Brake error (detection after turning on)
Under voltage
Motor stalling
Error in communication with controller
Error in communication with display
Error code
0
1
2
3
4
5
6
7
8
9
4.3 ERROR CODE TABLE
Each error code corresponds to a specific fault in the system. Take the E-bike to your dealer to have the error resolved.
If you still some questions about the display, please contact your Magnum dealer.
DISPLAY
16

RECOMMENDATIONS AND MAINTENANCE
17
5. Recommendations and Maintenance
5.1 General Requirements
E-bikes use metal shells to cover the electric components, so we strongly advise against the use of excessive water to
wash the shells and parts around them. Use a soft cloth with a neutral solution to wipe the dirt off the shells. Afterward,
wipe everything dry with a clean soft cloth.
Do not use high-pressure water or air hoses for cleaning; this can force water into electrical components, which may cause
malfunctioning.
Do not wash plastic components with excessive water. When the internal electrical parts are affected by water the
insulator may corrode, leading to power-drain or other problems.
Do not use soap solutions to wash the metal components. Non-neutral solutions may cause discoloration, distortion,
scratching, etc.
Avoid leaving the bike outdoors
When not riding, keep the bike in a location where it will be protected from snow, rain, sun, etc. Snow and rain can cause
the bike to corrode. Ultraviolet rays from the sun can cause unnecessary fading of paint or crack any rubber or plastic on
the bike.
5.2 Maintenance Schedule
To keep your E-bike in optimal condition and your riding experience at its most enjoyable, we strongly recommend
following the suggested maintenance schedule. You should study it and allow it to become second nature to your riding.
Recommended Torque Values
Front Wheel Nuts
Rear Wheel Nuts
Seat Binder Bolt
Seat Post Clamp Nut
Brake Anchor Nut
Handlebar Clamp Nut
Headset Expander Nut
Crank Cotter Pin Nuts
Brake Centre Bolt
22-27 Newton Meters
24-29 Newton Meters
12- 17 Newton Meters
15- 19 Newton Meters
7- 11 Newton Meters
17- 19 Newton Meters
17-19 Newton Meters
9-14 Newton Meters
2-17 Newton Meters
16.2- 19.8 ft.-lb.
17.5- 21.3 ft.-lb.
8.8- 12.5 ft.-lb.
11.0-14.0 ft.-lb.
5.1- 8.1 ft.-lb.
12.5- 14.0 ft.-lb.
12.5- 14.0 ft.-lb.
6.6- 10.3 ft.-lb.
1.5- 12.5 ft.-lb.

Maintenance Schedule
Tire pressure
Tire condition
Visual inspection
Brake lever pressure
Quick releases
Handlebar alignment
Saddle alignment
Battery pack locked
Wheel check
Clean and lubricate chain
Check brake pads
Lubricate forks
Lubricate brakes & cables
Lubricate folding mechanism
Check all bolts and torque settings
Clean bicycle
Charge battery
Check wheel spokes
Inspect rim condition
Inspect saddle, rails and clamp
Grease pedal bearings
Check hub bearings
Check headset bearings
Check bottom bracket bearings
Replace brake pads
Replace brake cables (depends on use)
Replace tires (depends on use)
Each ride Weekly Monthly 6 Monthly Yearly
Inspect frame condition
(include welds for fissures)
WARNING:
—As with all mechanical components, electrically power assisted cycles (EPAC) are subjected to wear and high stresses.
Different materials and components may react to wear or stress fatigue in different ways. If the design life of a component
has been exceeded, it may suddenly fail, possibly causing injuries to the rider. Any form of crack, scratches or change of
coloring in highly stressed areas indicate that the life of the component has been reached and it should be replaced.
RECOMMENDATIONS AND MAINTENANCE
18