English – KTM 640 LC4 ENDURO User Manual
Page 22
ENGLISH
21
Checking and adjusting steering head bearing *
Check steering head bearing for play periodicaly. To check this put
motorcycle on a stand so that the front wheel is off the ground. Now try to
move the fork forward and backward. 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 rap
on the triple clamp to avoid tension. Re-tighten the five clamp screws with
20 Nm.
ƽ
WARNING
ƽ
I
F THE STEERING HEAD BEARING IS NOT ADJUSTED TO BE FREE OF PLAY
,
THE MOTOR
-
CYCLE 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
,
FIRST
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 screws for telescopic fork
After every 5 hours of use for competitive racing, slacken the breather
plugs
3
a few turns in order to relieve excess pressure from the inside 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 BREATHER PLUGS 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. Then, push dust-protection bellows
into the outer tubes by hand.
ƽ
WARNING
ƽ
N
O SILICONE OIL MAY REACH THE FRONT TIRE OR THE BRAKE DISKS SINCE THIS WOULD
CONSIDERABLY REDUCE THE TIRE
'
S ROAD GRIP AND THE BRAKING EFFECT OF THE FRONT
BRAKE
.
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