31.8
•
Heat the fork bridge to 100 °C (212 °F) and press
in the angular-contact ball bearing with pin,
BMW No. 31 5 651, and bushing,
BMW No. 31 5 653.
•
Install retaining ring.
31 42
Removing and installing slider
tube bridge
•
Remove mudguard.
•
Heat leading link mount at front to
max. 120 °C (248 °F) and unscrew.
•
Remove fastener securing slider tube bridge.
•
Installation is the reverse of the removal proce-
dure.
e Attention:
Comply with assembly instructions for telescopic
fork.
X Tightening torque:
Leading link to ball joint
(clean thread + Loctite 2701)...................... 130 Nm
Slider tube bridge to slider tube
(clean thread + Loctite 243)......................... 25 Nm
Removing and installing ball joint in slider tube
bridge
•
Mount the slider tube bridge in retaining fixture,
BMW No. 31 5 620.
•
Loosen and tighten ball joint with 46 mm socket,
BMW No. 31 5 630 .
X Tightening torque:
Ball joint to slider tube bridge
(coat threads with Optimoly TA).................. 230 Nm
31 42
Checking friction at ball joint/
angular-contact ball bearing
•
Raise the motorcycle on its main (centre) stand,
make sure front wheel is clear of the ground.
L Note:
To determine the friction value, increase torque very
slowly.
•
Measure the breakaway moment to left and right
from the central position of the handlebars using
friction meter, BMW No. 00 2 570.
Friction value:
Measure at room temperature (above 20 °C/68 °F)
Specified value:................................... 1.0...2.0 Nm
j
100
w
GS310130
31 5 653
31 5 651
R22310050
31 5 630
31 5 620
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