Motorcycle BMW R1150RT. Manual - part 57

32.11

32 72  

Removing and installing brake 

piston in handlebar fitting

e

 Attention:

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

•

Integral ABS Drain front control circuit 
(

a

34.19).

•

Remove throttle twistgrip cover.

•

Back off the adjuster screw for the throttle cable 
and disengage the cable.

•

Remove guide of throttle cable.

•

Remove the lower section of the grip unit.

•

Release multi-function switch from grip unit.

•

Remove the handlebar weight.

•

[Heated grips] Release cable from right 
handlebar.

e

 Attention:

[Heated grips] Make sure there is no tensile strain 
on the cable of the heated grip.

•

[Heated grips] Turn throttle twistgrip all the way 
forward and pull the grip slightly out.

•

[Without heated grips] Turn throttle twistgrip all 
the way forward and remove.

•

Release throttle-cable relay from grip unit, pull 
grip slightly out and turn it.

•

Remove pivot screw (1) for lever.

•

Remove rubber boot (2).

e

 Attention:

Note that brake piston (3) is spring-loaded.

•

Carefully press back brake piston (3) using an Al-
len key with T-bar handle, for example, and re-
move retaining ring (4).

•

Remove brake piston (3) with spring (5).

•

Installation is the reverse of the removal proce-
dure: pay particular attention to the following.

•

Prior to installation, coat the piston and the 
boots (6) with brake fluid.

e

 Attention:

Sealing lips of the boots (6) toward the pressure 
chamber.

R22320070

1

5

2

3

4

6

6

32.12

•

Prior to installation, carefully press back the 
brake piston using an Allen key with T-bar han-
dle, for example.

•

Use cranked-tip snap-ring pliers to install the re-
taining ring, and check that the ring is seated 
correctly.

•

Apply a light coat of Optimoly MP 3 to the pres-
sure pin (arrow) on the lever.

e

 Attention:

When installing the brake lever, make sure that the 
metal tab on the brake-light switch is correctly posi-
tioned (otherwise switch will not work).

•

Integral ABS Fill and bleed front control circuit 
(

a

34.20).

•

Adjust blow-by clearance at handlebar fitting for 
brake.

•

Fully assemble the fitting.

X 

Tightening torque:

Hand lever bearing screw............................. 11 Nm
(Tuflok Blue thread-locking compound; screw can 
be released and tightened a number of times)

Adjusting blow-by clearance at handlebar fitting 
for brake

•

Remove cover from throttle-cable relay.

•

Remove the lower section of the brake lever fit-
ting.

•

Back off adjusting screw (1).

L

 Note:

Thread is secured with Loctite, if necessary heat 
slightly prior to facilitate removal.

•

Remove pivot screw (2) of lever and remove the 
lever.

•

Clean and degrease the threads of the adjusting 
screw.

•

Coat the threads of the adjusting screw with 
Loctite 648 or Loctite 270 and screw it a few 
turns into the lever.

•

Apply a light coat of Optimoly MP 3 to the pres-
sure pin of the adjusting screw.

•

Install the lever, making sure that the metal tab 
on the microswitch is correctly positioned.

•

Tighten the adjusting screw until the lever has 
zero play.

•

Tighten the adjusting screw another full turn.

•

Apply sealing lacquer to the adjusting screw.

•

Fully assemble the fitting.

X 

Tightening torque:

Hand lever screw bearing (2)  ....................... 11 Nm
(Tuflok Blue thread-locking compound; screw can 
be released and tightened a number of times)

R21340050

1

2

32.13

32 71 165 

Removing and installing 

handlebars

32 71 150 

Removing and installing left 

handlebar

d

 Warning:

Do not disassemble the handlebars.

•

Remove the lower section of the left grip unit.

•

[Radio] Remove handlebar remote-control unit.

•

Release left multi-function switch from grip unit.

•

[Heated grips] Remove left heated grip.

•

Release fastener securing left handlebar to fork 
bridge.

e

 Attention:

To prevent air from entering the hydraulic system, 
keep the grip unit horizontal.

•

Slacken left handlebar grip unit.

•

Remove left handlebar, remove grip unit and 
keep it horizontal.

•

Installation is the reverse of the removal proce-
dure.

•

Align the grip unit with the punch mark (arrow) on 
the handlebar.

e

 Attention:

Make sure that all lines and cables are correctly 
routed.

X 

Tightening torque:

Handlebar weight to handlebar .................... 21 Nm
Handlebars to fork bridge............................. 21 Nm

R22320040

32.14

32 71 160 

Removing and installing right 

handlebar

d

 Warning:

Do not disassemble the handlebars.

•

Remove the lower section of the right grip unit.

•

Release right multi-function switch from grip 
unit.

•

[Heated grips] Remove right heated grip.

•

Release fastener securing right handlebar to fork 
bridge.

e

 Attention:

To prevent air from entering the hydraulic system, 
keep the grip unit horizontal.

•

Slacken right handlebar grip unit.

•

Remove right handlebar, remove grip unit and 
keep it horizontal.

•

Installation is the reverse of the removal proce-
dure.

•

Align the grip unit with the punch mark (arrow) on 
the handlebar.

e

 Attention:

Make sure that all lines and cables are correctly 
routed.

X 

Tightening torque:

Handlebar weight to handlebar..................... 21 Nm
Handlebars to fork bridge............................. 21 Nm