Manual Bosch Purion BUI215 - 2021 (page 14 of 100) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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English – 2

Operation

Symbols and their Meaning

Symbol Explanation

Short button press (less than 1 second)

Medium button press (between 1 second

and 2.5 seconds)

Long button press (longer than

2.5seconds)

Start-up

Prerequisites

The eBike system can only be activated when the following

requirements are met:

– A sufficiently charged battery is inserted (see battery op-

erating instructions).

– The speed sensor is connected properly (see drive unit

operating instructions).

Switching the eBike system on/off

The following options are available for switching on the

eBike system:

– Press the on/off button (1) of the on-board computer

with the eBike battery inserted.

– Press the on/off button of the eBike battery (see battery

operating instructions).

The drive is activated as soon as you start pedalling (except

if you are using the push-assistance function or if the assist-

ance level is set to OFF). The motor output depends on the

settings of the assistance level on the on-board computer.

As soon as you stop pedalling when in normal operation, or

as soon as you have reached a speed of 25/45km/h, the

eBike drive switches off the assistance. The drive is automat-

ically reactivated as soon you start pedalling again and the

speed is below 25/45km/h.

The following options are available for switching off the

eBike system:

– Press the on/off button (1) of the on-board computer.

– Switch off the eBike battery using its on/off button (bi-

cycle manufacturer-specific solutions are possible when

there is no access to the battery on/off button; see the bi-

cycle manufacturer operating instructions).

The system shuts down after being switched off. This takes

approximately 3seconds. It cannot be switched back on un-

til shutdown has been completed.

If the eBike is not moved for approx. 10 min and no button is

pressed on the on-board computer, the eBike system

switches off automatically in order to save energy.

Note: Always switch off the eBike system when you park the

eBike.

Note: If the batteries of the on-board computer are empty,

you can still switch on your eBike using the bike’s battery. It

is, however, recommended that you replace the internal bat-

teries as soon as possible in order to avoid damage.

Energy supply of the on-board computer

The on-board computer is supplied with voltage by two

CR2016 button cells.

Changing the batteries (see figure A)

If the on-board computer shows LOW BAT on the display,

remove the on-board computer from the handlebars by un-

screwing the fastening screw(3) of the on-board computer.

Open the battery compartment cover(10) using a suitable

coin, remove the used batteries and insert new CR2016 bat-

teries. You can obtain the batteries recommended by Bosch

from your bicycle dealer.

When inserting the batteries, ensure that the polarity is cor-

rect.

Close the battery compartment again and fasten the on-

board computer to your eBike’s handlebars using the fasten-

ing screw(3).

Switching the push assistance on/off

The push assistance aids you when pushing your eBike. The

speed in this function depends on the selected gear and can

reach a maximum of 6km/h. The lower the selected gear,

the lower the speed of the push assistance function (at full

power).

uThe push assistance function must only be used when

pushing the eBike. There is a risk of injury if the wheels

of the eBike are not in contact with the ground while using

the push assistance.

To activate the push assistance, briefly press the WALK

button on your on-board computer. After activation, press

the + button within 3s and keep it pressed. The eBike drive

is switched on.

Note: The push assistance cannot be activated at assistance

level OFF.

The push assistance is switched off as soon as one of the

following occurs:

– You release the +button;

– The wheels of the eBike are locked (e.g. by applying the

brakes or hitting an obstacle);

– The speed exceeds 6km/h.

The push assistance function is subject to local regulations;

the way it works may therefore differ from the description

above, or the function may even be deactivated completely.

Setting the assistance level

You can set the level at which the eBike drive assists you

while pedalling on the on-board computer. The assistance

level can be changed at any time, even while cycling.

Note: In some models, the assistance level may be preset

and cannot be changed. There may also be fewer assistance

levels available than stated here.

The following assistance levels are available as a maximum:

–OFF: Motor assistance is switched off. The eBike can just

be moved by pedalling, as with a normal bicycle. The

push assistance cannot be activated at this assistance

level.

1 207 020 XBP | (11.03.2020) Bosch eBike Systems

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Bosch Purion BUI215 - 2021 Manual

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