Sym RS-50 Service Manual page 129

13. Steering/Front Wheel/Front Shock Absorber
With a plastic hammer to tap the steering ball race
slightly, and then remove the top ball bearing race.
Remove the lower-end cone bearing race on the
frame with a punch.
Caution
Do not damage the frame and the steering
race.
Installation
Install a new top-cone bearing race 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
race.
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 lock 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.
13-8
This Chapter Contents
Lower ball bearing race
Lower cone-race
Steering lock nut
Steering column nut
Balls
Top
cone-race
Top cone-race
Steering lock nut
Balls
Top ball bearing race
Return 1/2 turns
Locking to 1/4~3/8
turns
Top cone-race