SANYANG INDUSTRY CO. SYM Service Manual page 148

14. STEERING/FRONT WHEEL/FRONT SHOCK ABSORBER
With a plastic hammer to tap the steering
column slightly, and then remove the top ball
bearing seat.
Remove the lower-end cone bearing seat on
the frame with a punch.
Caution
Do not damage the frame and the steering
column.
Installation
Install a new top-cone bearing seat onto the
top of steering column.
And then, push the lower-cone bearing seat
from bottom until to locking position.
Caution
Do not let the ball bearing in title motion as
installation.
Apply with some grease onto the top &
bottom bearing balls, and then install the
balls into bearing seat.
Press in a new lower cone-race onto the
steering column, and lubricate it with grease.
Install the steering column.
Lubricate the top-cone race with grease.
Drive the cone-race into the steering column
until contact with the top bearing seat no
clearance. Note, return 1/2 turn and then
tighten the top cone race to specified torque.
(tighten the race around 1/4~3/8 turn more.)
Torque value: 0.2~0.3kgf-m
Caution
Do not tighten the top cone race too tight
to prevent from damage the ball bearing
seat when tightening the top cone race.
Install the steering column nut and lock the
top cone race. Then, tighten the nut.
Torque value: 1.0~2.0kgf-m
Install the bearing seat according to the
reverse procedure of removal.
Caution
Check the steering column if it can be
turned freely and no clearance in vertical
motion.
14-10
Lower all bearing seat
Balls
Lower cone-race
Steering column nut
Top cone-race
Steering column nut
SYM
Steering column nut
Top cone-race
Balls
Top ball bearing seat.
Return 1/2 turn
Locking to
1/4~3/8 turn
Top cone-race