Suspension
HP
Velotechnik
57
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Lubrication
After some use it may be advantageous for
the performance to lubricate the fork after it
has been dismounted and after the bushings
have been cleaned.
Only use the special Concept lube, this lubri-
cant is for the use at the upper bushing and
the elastomer strip of the Linear Friction
System below the upper bushing.
You can buy this lubricant from your
HP V
ELOTECHNIK
dealer Put your bicycle on a
work stand so that you can dismount the
front wheel and the front fork.
Dismount all add-on parts from the fork
(front wheel, brakes, computer sensor etc.).
Undo the clamping screw of the stem.
Unscrew the end cap from the outer tube.
Then remove the end cap by unscrewing the
hex headed screw on its top. The end cap
must be held tight. You may have to hold the
piston rod under the fitting cap in place.
Now cautiously pull the fork down out of the
outer tube. Take care that you don't turn the
outer tube relative to the inner steerer tube
while working on it, since the fork has to be
remounted in exactly the same position as it
has been dismounted. Therefor mark both
tubes with a pen in order to keep the correct
position.
Clean all bushings and surfaces with a dry
cloth. For lubrication only use the appropriate
lubricant recommended by us. Other lubri-
cants or chemical cleansing agents may have a
negative impact on the performance of the
synthetic bushes or the linear friction damping
system. Apply the lube thinly and evenly to
the surface of the spline guide and the entire
surface of the steerer tube as well as the
inside of the lower and the upper bushing.
Finally remount all parts in reverse order.
In doing this take care that you keep the
position of the steerer tube in relation to the
outer tube as described above. The spline
guide of the lower bushing must not be dam-
aged while inserting in the steerer tube.
The conical ring below the upper bushing
must face downward with the slope surface.
The upper bushing and the spacers must not
come out at the top while inserting the steer-
er tube.
Adjusting the fork play (instructions for the
mechanic)
The linear support of the suspension fork and
the transmission of the steering forces is done
by a spline system in the steerer tube and the
lower bushing. With the practical adjusting
system you can adjust both the smooth per-
formance of the system and the range of the
play through the lower adjusting nuts.
It may be necessary to adjust the bearing after
the first break-in phase; later on the adjust-
ment is only necessary in exception. The
adjustment of the fork play requires special
tools and skills.
Attention!
The following section
refers to the expert. The adjusting nuts for
the fork play are protected through the
frame tube, therefor you will have to dis-
mount the fork prior to adjusting it.
Dismounting the fork
Dismount all add-on parts (front wheel,
brakes, computer sensor etc.) from the fork.
Undo the clamping screw of the stem and
remove the stem together with the bearing
cover from the top of the outer tube.
Grab the dust boot at the top and remove it
from the lock nuts at the lower end of the
outer tube.
Now take a rubber mallet and carefully hit the
cap to remove the outer tube by pressing it
downwards through the bearings.
After you have unmounted the fork you can
also unmount the bearings and the upper
bearing-cup with a fitting soft aluminum tube.