Motorcycle BMW R1150RT. Manual - part 11

00.40

Checking brake disc wear

•

Carefully check the brake discs for cracks, dam-
age, deformation and scoring.

•

Measure the thickness of the brake discs at sev-
eral points with a caliper gauge.

Brake disc wear limit:
front:........................................... 4.5 mm (0.177 in)
rear: ............................................ 4.5 mm (0.177 in)

Replacing brake pads

34 11 008

%UDNHSDGVfront brake

Attention:

Integral brakes, the rear brake must be ready for
use.

•

Remove the split-pin keeper (1) from threaded
pin (2).

•

Remove threaded pin (2) and spring (3).

Attention:

Integral ABS Press back pistons on only one side
of the brake caliper. Allow the brake pad on the op-
posite side to remain in the caliper during this proc-
ess.
Make sure that the fluid level in the wheel-circuit res-
ervoir does not rise above “max”.
Risk of fluid escaping.
If fluid escapes, proceed in accordance with “In-
structions for filling reservoir”.

•

Press back piston with inner brake pad only far
enough to allow the new brake pad to be slipped
into position.

•

Remove remaining old brake pad and insert new
brake pad.

•

Press back piston with outer brake pad only far
enough to allow the new brake pad to be slipped
into position.

•

Remove remaining old brake pad and insert
new brake pad.

Note:

After switching on the ignition, always wait for the
BMW Integral ABS to complete its self-diagnosis.
Do not operate the brake lever until self-diagnosis
has completed.

•

After replacing the pads of a caliper, always bed
in the new brake pads with the ignition switched
on.

Note:

Note position and arrow (4) of spring (3).

•

Install threaded pin (2) and spring (3).

•

Reinsert the split-pin keeper (1) in the groove in
threaded pin (2).

•

Check operation of the brake system with the ig-
nition switched on.

Tightening torque:

Threaded pin in front brake caliper................. 7 Nm

Colour code:
Brake pads/brake calipers ..............................white

R22000260

R22000270

00.41

34 21 200 Brake pads, rear brake

Attention:

Integral brakes, the front brake must be ready for
use.

•

Remove keeper (arrow) from retaining pin.

•

Drive the retaining pin out towards the wheel
side.

•

Remove brake caliper.

•

Remove brake pads.

Attention:

Integral ABS: Press the piston just far enough back
into the brake caliper to permit insertion of the brake
disc.
Make sure that the fluid level in the wheel-circuit res-
ervoir does not rise above “max”.
Risk of fluid escaping.
If fluid escapes, proceed in accordance with “In-
structions for filling reservoir”.

•

Force back the pistons.

•

Check that spring is correctly positioned and se-
cure.

–

Engraved arrow (arrow) points in direction of
travel.

•

Installation is the reverse of the removal proce-
dure.

•

Check operation of the brake system with the ig-
nition switched on.

Tightening torque:

Brake caliper to rear wheel drive .................. 40 Nm

R22000180

R22000280

00.42

34 00 090

Changing/bleeding brake

fluid in wheel circuit

Change brake fluid in wheel circuit once a year
(Inspection IV)

Warning:

All repair and maintenance work on the
BMW Integral ABS must be performed by trained,
qualified specialists.
Comply with all maintenance and repair instructions
and always work through the various steps in the
correct order.
Use only new brake fluid from freshly opened con-
tainers.

Note:

This description applies for the brake filling and
bleeding unit with extraction of the brake fluid by
partial vacuum.
If other devices are used, comply with their manu-
facturers’ instructions.

34 00 070

Bleeding/changing brake fluid

in front wheel circuit

Attention:

Integral brakes, the rear brake must be ready for
use.

•

Remove fuel tank.

Attention:

Do not allow brake fluid to come into contact with
painted parts of the motorcycle as brake fluid de-
stroys paint.

•

Open front wheel-circuit reservoir (1).

•

Draw off the old brake fluid from the wheel-circuit
reservoir.

•

Remove front brake pads (left and right).

Attention:

Install piston resetting tool, BMW No. 34 1 531,
only when the cap has been removed from the
wheel-circuit reservoir.

Attention:

Do not scrape the wheel – mask it off if necessary.

•

Use resetting tool, BMW No. 34 1 531, and
locator, BMW No. 34 1 532, to force the pistons
in the left and right brake calipers all the way
back and hold them in this position.

•

Wrap cloths around the left and right brake cali-
pers.

–

[Bleeding only] Bleed the front wheel circuit.
(

00.45)

•

Draw off the old brake fluid from the wheel-circuit
reservoir.

R28340110

R22000290

34 1 531

34 1 532

00.43

•

Screw container, BMW No. 34 1 581,
onto front wheel circuit reservoir.

•

Slowly fill container, BMW No. 34 1 581, with
new brake fluid until it is approximately 1/2 full.

•

Connect the brake bleeding device to the bleed
screw of the left brake caliper, but do not switch
on the device.

Note:

If necessary, use a cable tie to secure the bleed
hose to the bleed screw.

•

Switch on the ignition.

Note:

After switching on the ignition, always wait for the
BMW Integral ABS to complete its self-diagnosis.
Do not operate the brake lever until self-diagnosis
has completed.

Attention:

The brake fluid must always be visible in the contain-
er, because the piston in the base of the wheel-cir-
cuit reservoir must always be covered by the fluid.
The procedure must be repeated if the fluid drops
below the “min” level.

•

Very gently pull the handbrake lever until the
pump just starts up.

•

Open the bleed screw, while topping up the
container with new brake fluid if necessary.

•

Pump out the brake fluid with virtually no pres-
sure to begin with, then vary the brake pressure.

Note:

The higher the brake pressure the faster the fluid is
pumped through the system, which means that the
level in the wheel-circuit reservoir drops all the more
rapidly.

•

Pump off brake fluid until it emerges clear and
free from air bubbles.

•

Close the bleed screw.

•

Release the brake.

•

Disconnect the brake bleeding device from the
bleed screw.

•

Connect the brake bleeding device to the bleed
screw of the right brake caliper, but do not
switch on the device.

Note:

If necessary, use a cable tie to secure the bleed
hose to the bleed screw.

•

The procedure for changing the brake fluid in the
right brake caliper is the same as that for the
left caliper.

•

When the brake fluid is clear and free of bubbles,
continue pumping until the fluid in the container
just disappears from view.

•

Close the bleed screw.

•

Release the brake and switch off the ignition.

•

Disconnect the brake bleeding device from the
bleed screw.

•

Disconnect the container from the wheel-circuit
reservoir.

Attention:

After changing and/or bleeding the brakes, always
top up the fluid in the wheel-circuit reservoir to the
correct level in accordance with the instructions.

R22000340

34 1 581

MAX

MIN

R28340090

Content .. 9 10 11 12 ..