DAHON Service Manual - Manual (Page 12)

WARNING:
Failure to correctly tighten the headset can lead
to damage to the bicycle or injury to the rider.
WARNING:
If you are unsure of how to make
proper adjustments to your bicycle,
seek a qualified bicycle technician for
professional advice on adjustments.
Headset
Periodically check your headset. If the handlepost
should ever feel too loose, or you have noticed there is
an abundant amount of movement in the fork, the
headset may need to be adjusted. A properly adjusted
headset eliminates the possibility of movement, while
still allowing the handlebars to be turned. The following
instructions explain how to adjust the headset.
Step 5 - Following the arrow above, tighten the
clamp screw by turning it clockwise. Tighten the
screw with a torque of 11.3 Nm.
Step 4 – Before you continue to tighten the clamp
screw, check again to make sure that the handlepost
and handlebar are in the correct alignment. Also,
check to make sure that they are perpendicular to
the front wheel as shown in the picture above.
Step 3 - Periodically, apply Loctite 222
(Loctite 242 is also acceptable) to the
clamp screw. Take out the clamp screw,
place a small drop of Loctite 222
(or Loctite 242) on the threads of this
screw and then place the screw back
into the clamp.
Step 2 - Apply Loctite 222 (Loctite 242
is also acceptable) when tightening the
headset screw. Follow the arrow above
and turn the headset screw clockwise
to tighten, with a torque of 6.8-11.3 Nm.
Step 1 - Open the handlepost
clamp as indicated above, using a
6mm Allen key counter-clockwise.
12
NOTE:
If the hinge is very tight, please clear off dirt
and add lubricating oil.