2002 BMW MOTORRAD K 1200 LT Rider's Manual (in English)

3
79
Starting – Riding – Parking
Brake system - with BMW Integral ABS
Extra safety marginBut remember: the potentially
shorter braking distances
which BMW Integral ABS per-
mits must not be used as an
excuse for careless riding. ABS
is primarily a means of ensuring
a safety margin in genuine
emergencies.
–You have to familiarise your-
self with the new, electroni-
cally assisted braking. Try the
brakes several times when
you take your motorcycle out
for the first time. Find out for
yourself how the brakes feel.
–Never ride without due care
and attention, or assume that
good fortune will protect you
from your own foolhardiness
–Keep within the permitted
speed limits–Take care when cornering.
When you apply the brakes on
a corner, the motorcycle's
weight and momentum take
over and even BMW Integral
ABS is unable to counteract
their effects.
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Starting – Riding – Parking
3
Brake system - with BMW Integral ABS
Fully integral brakesThe integral brake function
interlinks the front and rear
brakes, so both wheels are
braked when you operate the
brake lever.
The electronic controller in the
BMW Integral ABS computes
the braking-force distribution
between front and rear wheels,
and applies the brakes accord-
ingly.
The braking-force distribution
depends on load and is recal-
culated every time the ABS
controller comes into action.
In a fully integral brake configu-
ration , the integral braking
function is activated by either
the handbrake lever or the foot-
brake lever.
Brake servoThe hydraulic pump in the BMW
Integral ABS actively boosts the
braking force acting on the
wheel when the brakes are
applied.
By boosting the braking force in
this way, the BMW Integral ABS
achieves a higher braking effi-
ciency than standard brake
systems.
ABS – anti-lock brake
system
ABS prevents the wheels lock-
ing under heavy braking when
the motorcycle is travelling in a
straight line, thus contributing
significantly to road safety.
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81
Starting – Riding – Parking
Brake system - with BMW Integral ABS
RESIDUAL BRAKING
FUNCTION
If the BMW Integral ABS devel-
ops a fault, a RESIDUAL BRAK-
ING FUNCTION only is available
in the brake circuits in question.
The RESIDUAL BRAKING
FUNCTION is the braking effi-
ciency without the hydraulic
servo assistance of the BMW
Integral ABS. Under these cir-
cumstances, therefore, you
must apply CONSIDERABLY
higher pressure to the brake
levers in question in order to
apply the brakes, and lever travel
is longer. When the RESIDUAL
BRAKING FUNCTION is active,
the ABS function is unavailable
in the brake system in question.
When the RESIDUAL BRAKING
FUNCTION is active, the integral
braking function is partially or
entirely unavailable.
d Warning:
When the RESIDUAL BRAK-
ING FUNCTION is active, main-
tain a defensive riding style
and proceed immediately to
the nearest specialist work-
shop, preferably an authorised
BMW motorcycle dealer.
L Note:
When the RESIDUAL BRAKING
FUNCTION is active, it is advisa-
ble to set adjuster A (
b 45) on the
front-brake lever to position 4.
The RESIDUAL BRAKE FUNC-
TION is active under the follow-
ing circumstances:
–Ignition off
–Before and during self-diag-
nosis (
b 82)
–Fault in the BMW Integral ABS
(
b 85)
L Note:
When the RESIDUAL BRAKING
FUNCTION is active for both
brake circuits, the noise of the
pump is no longer audible when
you operate the brake levers.
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82
Starting – Riding – Parking
3
2 Brake system - with BMW Integral ABS
Self-diagnosis with pull-
away test
The BMW Integral ABS performs
self-diagnosis and a pull-away
test to ensure its operability.
Self-diagnosis is performed
automatically when you switch
on the ignition.
d Warning:
Self-diagnosis is not performed
unless both brake levers are in
their fully released positions.
Only the RESIDUAL BRAKING
FUNCTION is available until self-
diagnosis is completed (b 81).Release the brake levers, if
necessary.
Switch on the ignition
Initially:
–ABS warning light1:
flashes at 4 Hz
–General warning light2:
ON
bSelf-diagnosis is in
progress
Then:
–ABS warning light1:
flashes at 1 Hz
–General warning light2:
OFF
bSelf-diagnosis successfully
completed
* depending on national-market speci-
fication
1*
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83
Starting – Riding – Parking
2 Brake system - with BMW Integral ABS
Start the engine
Move off
–ABS warning light1:
OFF (as of approx. 5 km/h
(3 mph) road speed)
bPull-away test successfully
completed
bBMW Integral ABS is
available
L Note:
Flashing at 1 Hz = 1 x flash per
second (slow flashing)
Flashing at 4 Hz = 4 x flashes
per second (fast flashing)
* depending on national-market speci-
fication
L Note:
Starting on gradients:
Always switch on the ignition
with gear engaged, clutch lever
released and both brake levers
released.
Self-diagnosis cannot be per-
formed if you do not follow this
procedure.
When self-diagnosis completes,
apply the brakes, disengage the
clutch, and start the engine.
1*
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Starting – Riding – Parking
3
Brake system - with BMW Integral ABS
d Warning:
If the BMW Integral ABS fails
in both brake circuits, a RESI-
DUAL BRAKING FUNCTION
only is available. (b 81)
d Warning:
If the RESIDUAL BRAKING
FUNCTION is active (
b 81),
maintain a defensive riding
style and proceed immediate-
ly to a specialist workshop,
preferably an authorised BMW
motorcycle dealer.
d Warning:
If there is a fault in the ABS
system, the reserves of safety
normally afforded by ABS are
not available until the defect
has been put right.
There is a risk of dropping the
motorcycle if the brakes are
applied too hard and the
wheels lock or the rear wheel
lifts clear of the ground as a
r e su l t o f a h i g h le v e l o f t yr e ad -
hesion. Have the defect recti-
fied immediately by a
specialist workshop, prefe-
rably an authorised
BMW motorcycle dealer.
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85
Starting – Riding – Parking
BMW Integral ABS - Troubleshooting
Warning light,
generaleWarning light,
ABSl /
brake failureMalfunctions
OFF ON Only RESIDUAL BRAKING FUNCTION
available in both circuits (
b 81)
OFF Flashes at
1HzABS not available
Pull-away test not completed (
b 82)
OFF Flashes at
4HzOnly RESIDUAL BRAKING FUNCTION
available in both circuits (
b 81)
Self-diagnosis not completed (b 82)
ON OFF Tail light/brake light defective
(Maintenance Instructions, b Chapter 2)
ON Flashes at
1HzAt least one brake circuit without
ABS (
b 84)
ON Flashes at
4HzAt least one brake circuit in RESIDUAL
BRAKING FUNCTION mode (
b 81)
Alternate flas-
hing at 1 HzAlternate flas-
hing at 1 HzFluid level in BMW Integral ABS too low.
Check the motorcycle as follows:
–Ignition OFF: is brake pressure OK at
the brake levers?
–Are the brakes acting on both wheels?
–Is the brake system leaktight, no signs
of brake fluid escaping?
The brake system is defective if the test
outcome is negative.
Alternate flas-
hing at 4 HzAlternate flas-
hing at 4 HzFluid level in the BMW Integral ABS is too
low, perform the checks listed above.
Only RESIDUAL BRAKING FUNCTION
available in at least one circuit (
b 81)
d Warning:
Do not ride the motorcycle if you
have any doubts about the
dependability of the brake sys-
tem.
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86
Arrive safely
4
Know-how…In recent years, motorcycles’
technical design features have
become more and more
sophisticated.
Motronic, electronic ignition,
integral brakes, the catalytic
converter or the use of four
valves per cylinder are clear
signs that far more than basic
technical knowledge may be
needed to solve certain prob-
lems. In addition, high-tech
materials are increasingly tak-
ing the place of conventional
ones, which again calls for thor-
ough and expert knowledge if
they are to be handled correctly
during repair work.
To be sure of achieving the nec-
essary standard, it is always
advisable to consult your
authorised BMW motorcycle
dealer.The authorised BMW motorcy-
cle dealer employs staff who
attends regular and compre-
hensive training courses.
Your authorised BMW motorcy-
cle dealer also receives all the
current technical information
and is therefore fully aware of
the latest developments.
…technical features…The BMW motorcycle dealer’s
staff has the experience and all
the necessary facts at its dis-
posal when it comes to solving
problems quickly and effec-
tively. Workshops are equipped
with the latest technical
facilities, for example the spe-
cial tools developed by BMW
such as the
BMWdiagnosis system or
exhaust emissions tester.
Reliability
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