Ampler Juna User manual
Original Operating Instructions
Model year 2022
Ampler Manual
Juna / Axel
Ampler – Juna / Axel 2
Table of Contents
Table of Contents
1 About this instruction manual ..............................................................................................4
1.1 Why is an instruction manual necessary? .......................................................................................... 4
1.2 What can you nd in this instruction manual? ..................................................................................... 4
1.3 Symbols and illustrations ........................................................................................................... 4
1.3.1 Warning notices .................................................................................................................... 4
1.3.2 Symbols ............................................................................................................................ 5
1.3.3 Validity.............................................................................................................................. 5
1.3.4 Other relevant documents ........................................................................................................ 5
2 Safety instructions ............................................................................................................. 6
2.1 Pedelec ............................................................................................................................... 6
2.1.1 Intended use........................................................................................................................ 6
2.1.2 Non-intended use.................................................................................................................. 6
2.2 Battery charger...................................................................................................................... 6
2.3 Hazards .............................................................................................................................. 6
3 Delivery............................................................................................................................. 10
3.1 Symbols on the packaging ........................................................................................................ 10
3.2 Contents of delivery................................................................................................................ 11
3.2.1 Transporting the Pedelec in the shipping carton ............................................................................... 11
3.3 Unpacking the Pedelec ............................................................................................................12
3.4 Transporting the Pedelec .......................................................................................................... 12
4 Ampler Pedelec ................................................................................................................. 13
4.1 Bicycle - structure and components...............................................................................................13
4.1.1 Frame number ..................................................................................................................... 14
4.1.2 Type label.......................................................................................................................... 14
4.1.3 Handlebar ......................................................................................................................... 14
4.1.4 Brakes ............................................................................................................................. 15
4.1.5 Saddle and Seatpost ............................................................................................................. 15
4.1.6 Wheels............................................................................................................................. 15
4.1.7 Lighting system ................................................................................................................... 15
4.1.8 Electric drive ...................................................................................................................... 16
4.1.9 Rechargeable battery............................................................................................................. 16
4.2 Battery charger..................................................................................................................... 16
4.3 Accessories......................................................................................................................... 17
4.3.1 Ampler Bike Pass ................................................................................................................. 17
4.3.2 Bicycle lock ....................................................................................................................... 17
4.3.3 Trailer adapter .................................................................................................................... 17
4.4 Ampler Bike App.................................................................................................................... 17
5 Assembly .......................................................................................................................... 18
5.1 Handlebar alignment................................................................................................................19
5.2 Mounting the pedals .............................................................................................................. 20
5.3 Fitting the reector ................................................................................................................. 21
5.3.1 Attaching front and rear reector................................................................................................ 21
5.4 Fitting the accessories............................................................................................................. 21
5.4.1 Trailer adapter (optional).......................................................................................................... 21
5.4.2 Bike lock (optional) ............................................................................................................... 21
3Ampler – Juna / Axel
Table of Contents
6 Before the rst ride........................................................................................................... 22
6.1 Checking the Pedelec after assembly.............................................................................................22
6.2 Customising the Pedelec ..........................................................................................................22
6.2.1 Adjusting the saddle..............................................................................................................22
6.2.2 Adjusting the lighting system (light beam of the front light) .................................................................. 23
6.3 Basic features ..................................................................................................................... 24
6.3.1 Switching the Pedelec on and o............................................................................................... 24
6.3.2 Selecting the assist mode .......................................................................................................25
6.3.3 Switching the lights on and o ................................................................................................. 26
6.3.4 Charging the battery with the charger ..........................................................................................27
7 Operation: riding the Pedelec ........................................................................................... 28
7.1 Before your ride .................................................................................................................... 28
7.1.1 Checklist "Before Every Ride".................................................................................................... 28
7.1.2 Personal protective equipment ................................................................................................. 29
7.2 Riding the bike ..................................................................................................................... 29
7.3 Before the rst rides: perform "bedding-in" of the brakes ...................................................................... 29
7.4 At the end of the ride.............................................................................................................. 29
8 Cleaning, maintenance and care ........................................................................................30
8.1 Cleaning ............................................................................................................................ 30
8.1.1 After every ride ................................................................................................................... 30
8.1.2 Regular cleaning ..................................................................................................................31
8.2 Care and maintenance .............................................................................................................31
8.2.1 Brakes .............................................................................................................................31
8.2.2 Fenders ...........................................................................................................................31
8.2.3 Headset .......................................................................................................................... 32
8.2.4 Belt ............................................................................................................................... 33
8.2.5 Wheels ........................................................................................................................... 33
8.2.6 Tires .............................................................................................................................. 34
8.2.7 Fasteners .........................................................................................................................35
8.2.8 Rechargeable battery ............................................................................................................35
9 Troubleshooting faults and errors..................................................................................... 36
9.1 Restarting the rmware.............................................................................................................37
10 Ampler Bike App............................................................................................................... 38
10.1 Features ........................................................................................................................... 38
10.2 Install and use the Ampler Bike App on a smartphone......................................................................... 39
10.3 Updating the Pedelec's rmware................................................................................................ 39
10.4 Carrying out a calibration of the torque sensor ................................................................................ 39
10.5 Carrying out a factory calibration ............................................................................................... 39
11 Inspection and maintenance............................................................................................. 40
11.1 Inspection schedules ............................................................................................................. 40
12 Repair................................................................................................................................40
13 Decommissioning..............................................................................................................40
13.1 Decommissioning the Pedelec .................................................................................................. 40
Ampler – Juna / Axel 4
Table of Contents
14 Storage ............................................................................................................................. 41
15 Disassembly...................................................................................................................... 41
16 Disposal ............................................................................................................................ 41
17 Technical specications ................................................................................................... 42
17.1 Pedelec............................................................................................................................ 42
17.2 Battery charger................................................................................................................... 43
17.3 Accessories: trailer adapter ..................................................................................................... 43
17.4 Accessories: rear carrier......................................................................................................... 43
18 Further information .......................................................................................................... 44
18.1 Addresses......................................................................................................................... 44
18.1.1 Manufacturer .................................................................................................................... 44
18.1.2 Customer Service............................................................................................................... 44
18.2 Ampler Support Portal .......................................................................................................... 44
19 EC Declaration of Conformity ........................................................................................... 45
5Ampler – Juna / AxelAbout this instruction manual
1 About this instruction manual
1.1 Why is an instruction manual necessary?
The instructions will help you to use the Pedelec correctly and safely. This prevents mistakes, damage and above all, the risk of injury
due to incorrect use. This applies to the assembly, tting, and riding, and also for all other aspects, such as the use of components
(e.g. battery and charger, rear carrier, lighting system, etc.), cleaning, care and maintenance as well as dismantling and disposal.
This manual was drafted in the English language and is therefore to be considered as the Original instructions. It may have been
translated into other languages as applicable.
These instructions are also available at the Ampler Support Portal as PDFs as well as being available in other languages.
These instructions are also available in the Ampler Support Portal as PDFs as well as in other languages.
1.2 What can you nd in this instruction manual?
This instruction manual contains the necessary information to become familiar with the Pedelec and to use it in a safe manner.
1.3 Symbols and illustrations
1.3.1 Warning notices
This instruction manual includes warning notices to highlight potential hazards (damage to property and personal injury).
J Read and pay attention to the warning notices.
J Follow all precautions indicated in the advisories.
y Hazard prevention measures are marked with the symbol .
Warning symbols Warnings Meaning
DANGER Hazards with a high degree of risk to persons.
Failure to observe this will result in death or serious injury.
WARNING Hazards with a moderate level of risk to persons.
Failure to observe this may result in death or serious injury.
CAUTION Hazards with a fairly low level of risk to persons.
Failure to observe this may result in minor or moderate injury.
ATTENTION ATTENTION Information on how to avoid property damage.
Failure to observe this may result in damage to the product or other property.
Ampler – Juna / Axel 6About this instruction manual
1.3.2 Symbols
To ensure clarity, the following symbols are used in this instruction manual:
Symbol Meaning
J
1.
2.
Symbol that identies a single required action.
Multiple action steps are numbered.
J If there are several action steps, observe the correct sequence of actions.
Symbol for taking action in a safety and warning notice
Additional information, tip or recommendation
1.3.3 Validity
This instruction manual applies to the following Pedelecs:
Model Model Year
Juna 2022
Axel 2022
1.3.4 Other relevant documents
Pedelec component instructions are also available in PDF format on the Ampler Support Portal.
To have the instructions available in digital form (e.g. on a smartphone) at any time, it can be
downloaded there.
Format Supplied in printed form PDF on the Support Portal Explanation
Instructions for
LED rear light
─ x ─
Gates Carbon Drive
instructions
─ x ─
Charger instructions ─ x ─
Bike Lock instructions x x optional, depending on
contents of delivery
7Safety instructions Ampler – Juna / Axel
2 Safety instructions
Read and carefully follow the instruction manual.
Keep the instruction manual in a safe place.
Read, follow and store all supplied instruction manuals for
components and accessories.
Please pass on the instruction manual and all user manuals
when handing over the Pedelec.
2.1 Pedelec
2.1.1 Intended use
The Pedelec is an Electrically Power Assisted Cycle (EPAC)
intended for use on public roads. Its intended use is considered
to be limited to urban areas, city and commuting in countryside
areas on publicly accessible, paved roads.
Only use the Pedelec, components and accessories in
accordance with the information in this instruction manual.
y Please adhere to Ampler’s instruction manuals for the
Pedelec's components and accessories.
Do not modify the Pedelec, its components or accessories
in an unauthorised manner.
Only use approved original spare parts for replacement,
exchange, maintenance or repair.
Replace, service or repair of components only as specied
in this manual and, if necessary, after contacting
Ampler Customer Service.
2.1.2 Non-intended use
The Pedelec is not intended for o-road use or racing.
Avoid non-intended uses:
The following are considered as non-intended use and
reasonably foreseeable misuse:
y Using the bike for o-road riding
y Using the bike for racing
y Renting the Pedelec at unattended rental stations
y Exceeding the permissible total weight of the Pedelec
y Not installing the reectors as required by national
and local regulations
y Adjusting the seatpost beyond the minimum
insertion depth
y Failure to suciently tighten the stem clamping screws
by the user
y Over- or undertightening the headset cap screw
by the user
y Failure to correctly install the pedals by the user
y Inating the tires above the maximum allowable
ination pressure
y Using the Pedelec with underinated tires
y Disregarding the required inspection and
maintenance schedules
y Overtightening of fasteners during assembly, adjustment
or maintenance
y Not using genuine replacement parts when replacing
spare parts
y Connecting the charger to a damp, wet or metallic
contaminated charging port
y Connecting a damp, wet or otherwise contaminated
charging plug
y Using the charger outdoors
y Inappropriate disposal of the Pedelec, its components,
parts or accessories
2.2 Battery charger
The battery charger is not intended for use by persons
(including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of
the charger by a person responsible for their safety.
Do not let children play with the battery charger.
Use only the charger intended for the corresponding
Ampler bike when charging the battery in the Pedelec
with the charging connection.
2.3 Hazards
Riding without a bike helmet
Serious injuries and fatalities induced by accidents!
Riding without a bicycle helmet can lead to serious head
injuries in the event of a crash or fall.
Always wear a correctly adjusted and tting bicycle helmet
when riding.
Follow the manufacturer's manual.
Loose components of the Pedelec
Loose components that can lead to hazards include:
y Saddle and seatpost
y Handlebar
y Pedals
y Wheels
y Rear carrier
Ampler – Juna / Axel 8Safety instructions
Falls and very serious injuries can be caused by parts of
the Pedelec coming loose!
Loose or under-tightened screws, bolts, nuts and fastenings lead
to loose, slipping components (loose handlebars, slipping
seatposts, loose saddles, wheels slipping out of the fork
or dropouts, loose pedals) and can lead to loss of stability
and balance when riding.
Always comply with the torque specications or instructions
for the correct tightening of fasteners on the headset, stem,
handlebar, saddle and seatpost, wheels and axles.
Follow the instructions for the correct installation of pedals.
Note the information on the minimum insertion depth
of the seatpost.
Using the power button while riding
Falls, crashes and injuries can occur if the power button is
operated while the bike is in motion!
If the power button is pressed while riding, the rider's balance
can become compromised. Trying to operate the button while
riding can cause distractions.
Do not press the power button while riding.
Distraction through viewing the display while riding
Falls and crashes can occur through distraction when viewing the
display while riding!
Keep your focus on the road and your surroundings
while riding.
Falls and extremely serious injuries result from careless use
of a smartphone while riding!
Operating a smartphone while riding can distract you from your
surroundings and aect your stability while riding one-handed or
with no hands on the handlebar.
Do not use a smartphone to make phone calls while riding.
Do not try to operate your smartphone while riding.
Attach the smartphone to the handlebar using a suitable holder.
Use the Ampler Bike App on your smartphone only when it is
mounted in a stable holder.
Do not change settings in the Ampler Bike App while riding.
Only use the Ampler Bike App while riding to read information
on the smartphone display.
Overloading the Pedelec
Falls and extremely serious injuries can result from overloading
the Pedelec and thereby exceeding the maximum total weight!
Exceeding the max. permissible total weight leads to loss of
riding stability and can cause serious injuries.
The maximum permissible total weight of the Pedelec
includes the mounted accessories, any luggage
and the person riding.
Inappropriate use of the Pedelec for oroad riding,
for racing
Falls and extremely serious injuries result from using the
Pedelec inappropriately!
Using the Pedelec on unsuitable terrain (oroad, unpaved roads)
and for unsuitable purposes (cycle racing). This can lead to
an overstrain of the components and to serious injuries.
Only use the Pedelec for its intended purpose on paved
roads in urban and rural settings.
Do not use the Pedelec as a "racing bike",
nor as a "mountain bike".
Hot surfaces on the brakes
Hot components can cause burns to ngers and hands!
Parts of the brake system can become very hot when riding.
Do not touch the brake caliper and brake discs during
or immediately after riding.
Allow sucient cooling time.
Fire hazard!
Parts of the brake disc can become very hot when riding
and braking.
Never store the Pedelec after riding in such a way that hot
components come into close contact with easily ammable
surfaces or materials (grass, wood, paper, etc.).
Incompatible accessories and spare parts
Falls and potential injuries could result from installing
incompatible accessories!
The installation and use of incompatible accessories that are not
approved for the Pedelec (pedals, mirrors, rear carriers, fenders,
child seats, tires with spikes, etc.) can impair the functionality,
riding stability and safety of the Pedelec.
Only use accessories approved for the Pedelec.
Only install and use accessories in accordance with the
respective manufacturer's instructions.
Falls and potential injuries could result from the use
of incompatible spare parts!
The installation and use of incompatible spare parts can impair
the functionality, riding stability and safety of the Pedelec.
Only use original spare parts approved by Ampler for
maintenance and repairs.
Only carry out maintenance, servicing and repairs in
accordance with the information provided by Ampler,
or have them carried out by a bicycle workshop.
Do not modify original spare parts for the Pedelec.
Only install and use original spare parts in accordance with
the instructions of the manufacturer of the spare parts.
9Safety instructions Ampler – Juna / Axel
There is a risk of injury from incorrect use of
the trailer adapter!
Incorrect assembly and improper use of the trailer adapter
and the trailer can lead to accidents and serious injuries.
Read and follow the instructions for the trailer adapter.
Do not modify the Pedelec accessories.
Do not modify the Pedelec trailer adapter.
Only use original components for the assembly and use
of the trailer adapter.
Corrosive cleaning agents
Injuries to eyes and skin may result from the use of corrosive
cleaning agents!
Cleaning agents can get into the eyes and on to the skin if
used carelessly.
Adhere to the cleaning agent manufacturer's instructions
for use.
Do not clean the Pedelec with corrosive cleaning agents.
Corrosive hydraulic uid in the brake hoses
Injuries to eyes and skin may also be caused by the hydraulic
uid in the brake hoses!
In case of damaged brake hoses: Avoid contact with any
leaking hydraulic uid.
In case of contact with spilled hydraulic uid: Rinse
exposed skin surfaces and eyes immediately with water.
Get medical help.
Handle hydraulic uid only according to the
manufacturer's instructions.
Irritant lubricants
Injuries to eyes and skin may be caused by exposure to
irritant lubricants.
Aerosolized caustic lubricants can get on the skin
and in the eyes.
Do not use aerosol based lubricants.
In case of contact with aerosolized lubricants: Rinse eyes
immediately with water, rinse aected skin areas with water.
Get medical help.
Tools with sharp edges and cutting edges
Cut and puncture injuries can result from sharp edges,
spikes and cutting blades of tools!
Improper and unprotected use of tools with sharp edges,
spikes and cutting blades can injure hands and other parts
of the body.
Use personal protective equipment if necessary.
Use tools with care.
Damaged rechargeable battery
Danger of re and explosion!
A damaged battery can self-ignite and explode.
If the electronic safety system fails, the residual voltage in the
battery can trigger a short circuit.
Do not open the Pedelec battery casing.
Do not remove the battery yourself.
Do not disassemble or attempt to repair the battery yourself.
After a Pedelec has been dropped or subjected to an impact,
deactivate the Pedelec for at least 24 hours (do not switch
on the Pedelec, do not use it) and monitor the battery.
In the event of visible damage to the frame in the down tube
area of the installed battery:
y Switch o the Pedelec immediately.
y Do not switch the Pedelec on again.
y Do not use the Pedelec.
If damage to the battery is suspected, store the Pedelec in a
dry area and protect it from heat.
y Do not store the Pedelec near ammable materials.
Dispose of a Pedelec with a damaged battery appropriately.
The battery is installed within the frame, but water ingress might
cause a short circuit. The battery may self-ignite and explode.
Never immerse the frame of the Pedelec, even partially,
in water.
If there is a suspect of water ingress into the frame:
y Switch o the Pedelec immediately.
y Do not switch the Pedelec on again.
y Do not use the Pedelec.
High outdoor temperatures can cause uids to leak from the
battery and damage the housing. The battery may self-ignite
and explode.
Shield a Pedelec with a built-in battery from high temperatures,
long and/or strong sunlight and heat exposure.
Avoid severe and sudden temperature changes around the
frame of the Pedelec in the area of the built-in battery.
Do not store the Pedelec outdoors in high temperatures.
Keep the Pedelec in the shade during the summer.
Unsuitable battery chargers (e.g. ones with too high a voltage)
will damage the battery. The battery may self-ignite and explode.
Only use the original Ampler charger supplied with
the Pedelec.
If necessary, label the charger so that it cannot be confused
with chargers for other batteries or other Pedelecs.
Ampler – Juna / Axel 10Safety instructions
Metallic objects could cause a short circuit in the charging port
on the frame of the Pedelec. This may cause electrical arcing.
Do not insert or plug any metallic objects (bolts, coins, wires,
keys, brushes or similar) into the charging port on the frame
of the Pedelec.
Damage to the Battery!
The battery cells can be damaged if they are left permanently
undercharged (at) during prolonged periods of non-use.
Check the state of charge of the battery regularly and charge
the battery if necessary.
Damaged, overheated charger
Fire hazard!
The charger heats up when charging the battery and can
become very hot.
When charging, do not place the charger on easily ammable
surfaces or materials and do not place it near ammable or
explosive materials.
Do not cover the charger while charging.
Do not leave the charger unattended while charging.
Protect the charger from excessive heat or high temperatures.
Discomfort to the body and hands!
The charger can become very hot when charging the battery.
Do not touch the charger when the casing is very hot.
Place the charger in a well-ventilated location.
Electric shock!
A damaged charger may have defective plugs, power cables
and buttons.
Only operate the charger if it is in good working condition,
and only use it for charging.
Before each use, check the external condition of the plugs,
sockets, power cables and buttons of the charger. Ensure
that the charging socket and the mains plug of the charger
are not in contact with any metallic objects.
Do
not
use a damaged charger.
Electric shock due to a short circuit!
If water enters the charger, a short circuit may occur, which
can lead to an electric shock.
Store the charger in a cool and dry place.
Protect the charger from rain, snow, moisture and humidity.
Do not immerse the charger in water.
Condensation on the charger and charging ports
Electric shock due to condensation!
If there is a sharp change in temperature, condensation can
form on and within the charger and at the charging port.
If signicant temperature changes occur in the local setting,
do not use the charger until it has adapted suciently to
the ambient temperature.
Do not use the charger and charging port if there is
moisture or water on the housing.
Check the charger, the plug and the charging port for
moisture before use, and wipe dry if necessary.
11 Delivery Ampler – Juna / Axel
3 Delivery
The Pedelec will be delivered in a large shipping carton.
3.1 Symbols on the packaging
Symbol Meaning / Description Explanation
Recyclable Packaging can be recycled.
Dispose of packaging according to local regulations.
Laceration Injuries
“Caution! Remove all staples
after opening the lid!”
Packaging contains sharp-edged parts.
Protect from Moisture Protect packaging from moisture.
To p Transport and store packaging this way up.
Fragile Packaged Items Contents of the packaging are fragile. Handle With Care.
Do not throw or overturn.
Recyclable Dispose of packaging according to local regulations.
Ampler – Juna / Axel 12Delivery
3.2 Contents of delivery
Contents Juna / Axel
Pedelec, pre-assembled
Accessories kit
y Pedals
y Battery charger
y Reectors
y Bell
y Operating Instructions
y Bicycle Pass ("Bike Pass")
Accessories
Bicycle lock with holder and keys optional
Additional charger optional
Trailer adapter optional
Carrier optional
3.2.1 Transporting the Pedelec in the shipping carton
The shipping carton has 2 grip holes on each of the long sides and 1 grip hole on each of the short sides.
Transport the shipping carton only when sealed and in an upright position.
Grasp and lift the shipping carton only by the grip holes.
y If necessary, enlist the help of a second person for transport.
13 Delivery Ampler – Juna / Axel
3.3 Unpacking the Pedelec
After unpacking, store the packaging for later use.
Unboxing
A video about this is available on the Ampler Support Portal.
The video explains the necessary steps for unpacking in detail and contains further tips
1. Check the shipping carton for external damage.
y In case of noticeable damage, document the damage and contact Ampler Customer Service.
2. Place the shipping carton on a at, stable surface.
y Do not lay it at or topple it over.
3. Open the shipping carton on the side with the yellow safety label.
y After opening, remove all visible staples.
4. Grasp the cardboard support in which the Pedelec is housed with both hands and pull it out together with the Pedelec.
y If necessary, enlist the help of a second person.
5. Park the Pedelec next to the shipping carton.
6. Remove the protective packaging from the Pedelec.
7. Remove the accessory box from the cardboard support stand.
8. Check delivery for completeness.
y In case of missing parts, contact Ampler Customer Service.
9. Check all parts for damage.
y In case of noticeable damage, contact Ampler Customer Service.
10. Keep the shipping carton.
3.4 Transporting the Pedelec
Thanks to its low weight, the Pedelec can be carried easily with two hands.
J Before transporting, remove loose pieces and accessories from the Pedelec.
J When transporting the Pedelec, do not grasp or lift it by the wheels or the saddle, except the seatpost.
J Only transport the Pedelec in an upright position.
J Lift and carry the Pedelec by the top frame and, if necessary, by the seatpost.
Ampler – Juna / Axel 14Ampler Pedelec
4 Ampler Pedelec
The Pedelec consists of the bicycle, the charger and optional accessories. The Ampler Bike App can also be used with the Pedelec.
4.1 Bicycle - structure and components
Juna / Axel
1 Top tube with
integrated display
2 Down tube with
integrated battery
3 Seat tube
4 Seatpost with reector
5 Battery
6 Wheels
7 Hub / Electric motor
8 Disc brake
9 Saddle
10 Front light with reector
11 Display
12 Power button
13 Charging port
14 Eyelets for bottle
holder, lock
15 Pedals and crank
16 Bottom bracket
17 Handlebar
18 Brake levers
19 Bell
20 Belt drive
21 Chainstay
22 Motor cable
23 Rear light
24 Fenders
15 Ampler Pedelec Ampler – Juna / Axel
Symbols and notices on the bicycle
There are symbols and notices on the bike in some places. These provide information for the safe use of the Pedelec
and its components.
Symbol / Notice Position Meaning
10 Nm Thru-axle front wheel Max. tightening torque of the axle
50-584 / max. 5.0 bar, 73 PSI Tire sidewall Tire dimension / maximum permissible pressure
31.6 mm Seatpost Seatpost diameter
MIN INSERT Seatpost Minimum insertion depth
6 V DC Front light Front light power supply
4.1.1 Frame number
The frame number is on the left side dropout/chainstay and
in the Ampler Bike Pass. The frame number is required,
for example, for making enquiries with Ampler customer
service and when ordering spare parts.
4.1.2 Type label
The type label is located on the underside of the down tube,
next to the bottom bracket. You can nd information like
the manufacturer’s contact details, model name, year of
manufacture and max. permissible total weight there.
4.1.3 Handlebar
1 Handlebar
2 Stem
3 Grips
4 Bell
5 Brake levers
Ampler – Juna / Axel 16Ampler Pedelec
4.1.4 Brakes
The Pedelec is equipped with a front wheel brake and a rear wheel
brake. Get familiar with your brake system and pay attention to
the brake lever designations. Always check which brake lever
operates which brake before you start your ride. Both brakes are
hydraulically actuated disc brakes. The reach adjustment screw
can be used to change the distance of the brake lever blade to
the handlebar.
1 Brake lever blade
2 Reach adjustment screw
3 Brake hose
4 Clamping screw
4.1.5 Saddle and Seatpost
The saddle is adjustable in height and tilt angle.
1 Saddle
2 Seatpost
3 Saddle clamp (5 mm hex sockets, key not included)
4 Seat tube
5 Seatpost clamp (4 mm hex socket)
4.1.6 Wheels
The wheels consist of the rim with spokes and hub, the brake discs and the tires, as well as the rear sprocket for the belt drive.
The electric motor is integrated into the hub of the rear wheel and transmits its torque via a planetary gears and clutch system.
The clutch automatically disengages when the motor is o or when the speed of the rear wheel exceeds that of the motor
(above 25 km/h).
4.1.7 Lighting system
The Pedelec is equipped with a front light mounted to the fork crown and a rear light integrated into the rear fender.
The front and rear reector must be attached during assembly. The front and rear lights are powered by the battery.
1 Front light
2 Front reector
3 Rear light
4 Rear reector
Even if the battery power is low and the electric drive shuts o, the lights remain on for sucient time to bring you home.
17 Ampler Pedelec Ampler – Juna / Axel
4.1.8 Electric drive
The Pedelec is equipped with an electric drive that assists
the ride with 2 selectable assist modes up to the max. Speed
of 25 km/h. The power button is used to switch the Pedelec on
before riding, to select the assist mode if required, to switch the
lights on/o and to switch the Pedelec o after riding.
The modes are shown on the display.
The drive has a Li-ion battery as power source, an electric motor
and sensors that measure speed, cadence and torque.
The motor output adjusts accordingly to the selected assist
mode and the torque sensor signal.
The battery, the electronics and the sensors are integrated into
the Pedelec's down tube and bottom bracket.
The motor and the hub of the rear wheel form an integrated unit.
The Pedelec can be used with or without motor assist.
1 Rear wheel
2 Motor cable
3 Integrated motor
4.1.9 Rechargeable battery
The battery is integrated into the down tube. The battery
supplies power for the motor and the lighting system.
The battery is charged via the charging port on the down tube
of the Pedelec. The display on the top tube shows the state of
charge of the battery when the Pedelec is switched on.
The factory charge level of the battery is between 40% and 90%.
The battery capacity cannot fully develop in cold weather.
On particularly cold days, this can lead to a shorter range.
4.2 Battery charger
The charger is specced in accordance with the electrical
system’s requirements.
1 Mains plug
2 Power cord
3 Charging plug
4 Charging cable
5 Battery charger
6 Charging LED
Ampler – Juna / Axel 18Ampler Pedelec
4.3 Accessories
4.3.1 Ampler Bike Pass
The Ampler Bike Pass is provided by Ampler and contains essential data about your Pedelec.
This data is required, for example, for enquiries with Ampler Customer Service.
4.3.2 Bicycle lock
A bicycle lock is an optional extra. When bought with the bike it contains the appropriate holder, which can be attached to the eyelets
of the bottle cage mount. These are on the seat tube for Axel and on the down tube for Juna.
4.3.3 Trailer adapter
The Ampler trailer adapter is available as an optional extra and is compatible with most bike trailers from Thule, Burley and
Croozer. The trailer adapter is used to adapt the Ampler M12 thread of the axle on the rear wheel to a 10 mm mounting point.
4.4 Ampler Bike App
The downloadable Ampler Bike App is optionally available.
19 Assembly Ampler – Juna / Axel
5 Assembly
The Pedelec is delivered mostly pre-assembled. Some components still need to be attached and adjusted after unpacking.
Assembly
A video for this is available on the Ampler Support Portal. The video explains the necessary assembly steps
in detail and contains further tips.
Attach the charger for the rst start-up
The charger must be attached to wake the bike up from its shipping state and to enable the rst start-up.
Tools required
y 4 mm hex key (included in delivery)
y 6 mm hex key (included in delivery)
y Cross-head screwdriver
Using a torque wrench
If applicable, a torque wrench can be used for assembly (not included; available from specialist shops).
Tightening torques
Screws Tightening torque Explanation
Stem clamping screws max. 6 Nm
The cap screw is correctly tightened when the steering bearing
and the handlebar have no "play" (i.e. do not "wobble" or "judder")
and the handlebar can be moved easily in both
steering directions
.
Headset cap screw max. 2 Nm
Pedals 35 Nm In order to securely attach the pedals, tighten them with
proper strength or use a torque wrench for installation.
ATTENTION
Fasteners can be damaged by over-tightening!
Overtightening fasteners can overload them, damage the thread, leading to a loss of locking force and breakage of fasteners.
Do not exceed the tightening torque of the fasteners.
If necessary, use a suitable torque wrench.
Ampler – Juna / Axel 20Assembly
5.1 Handlebar alignment
1. Slightly loosen both stem clamping screws on the steerer
shaft with a 4 mm hex key.
To straighten the handlebar, it is best to stand upright over
the top tube, facing the front wheel.
2. Align the stem with the front wheel.
y Do not tighten the stem clamping screws yet.
3. Place your ngers on the dust cap between the frame
and the stem.
4. Move the wheel
J If there is noticeable "play" on the headset during movement:
y Loosen the stem clamping screws.
y Tighten the headset cap screw a little tighter.
y Tighten the stem clamping screws again.
ATTENTION
Fasteners can be damaged by over-tightening!
Overtightening fasteners can overload them, damage the thread, leading to a loss of locking force and breakage of fasteners.
Do not exceed the tightening torque of the fasteners.
If necessary, use a suitable torque wrench.
This manual suits for next models
1
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