KTM 640 Duke, Owner'S Handbook Manual

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ENGLISH
19
Checking and adjusting the steering head bearing*
Check steering head bearing for play periodicaly. To check this, put
motorcycle on stand so that the front wheel is off the ground. Now try to
move the fork forward and backward - no play should be discernable To
adjust, loosen the five clamp screws
1
of the top triple clamp and turn
steering stem bolt clockwise
2
until there is no more play. Don’t tighten
the steering stem bolt all the way, otherwise the bearings will be damaged.
With a plastic hammer, lightly tap on the top triple clamp to release tension.
Re-tight the five clamp screws to 15 Nm (11 ft.lb).
WARNING
I
F THE STEERING HEAD BEARING IS NOT ADJUSTED TO BE FREE OF PLAY
,
THE MOTORCYCLE
WILL SHOW AN UNSTEADY DRIVING PERFORMANCE AND CAN GET OUT OF CONTROL
.
! CAUTION !
I
F YOU DRIVE WITH PLAY IN THE STEERING HEAD BEARING FOR LONGER PERIODS
,
FIRSTLY
THE BEARINGS AND THEN THE BEARING SEATS IN THE FRAME WILL BE DESTROYED
.
At least once a year, the steering head bearings should be greased.
Bleeder screw front fork
The bleeder screws 3 should now and then be released a few turns to let
overpressure, if any, escape from the interior of the fork. To do this, place
the motorcycle on a stand with the front wheel lifted off the ground. When
riding the motorcycle mainly on street, it will be enough to have this job
performed in the course of the periodical maintenance service.
!
CAUTION
!
E
XCESSIVE PRESSURE IN THE INTERIOR OF THE FORK CAN CAUSE LEAKS IN THE FORK
. I
F
YOUR FORK IS LEAKING
,
IT IS RECOMMENDED TO OPEN THE BLEEDER SCREWS BEFORE
HAVING THE SEALS REPLACED
.
Cleaning the dust sleeves of the telescopic fork
The dust-protection bellows
4
are to remove dust and coarse dirt particles
from the fork tube. However, after some time, dirt may also get in behind
the dust-protection bellows. If this dirt is not removed, the oil sealing rings
located behind it may start to leak.
Use a screwdriver to lever the dust-protection bellows out of the outer
tubes and slide them downward.
Clean dust-protection bellows, outer tubes, and fork tubes thoroughly, and
oil them thoroughly with silicone spray or engine oil. Then, push dust-pro-
tection bellows into the outer tubes by hand.
2
4
1
3