Steering Stem - Sym JET 4 R 50 Series Service Manual

Steering Stem

Removal
Remove steering handle, front wheel and front
cushion.
Remove the steering stem mounting nut.
Remove top cone race and front fork.
Caution
Place the steel ball onto a parts container to
prevent from missing.
Slightly tap the top and bottom ball bearing seats
with a plastic hammer to remove the seats.
Remove bottom cone race body with a punch.
Caution
Do not damage the steering stem.
Installation
Install a new bottom cone race onto the steering
stem.
Push the cone race until to mounted position.
Caution
Do not tilt the ball bearing seats as installation.
Apply with grease onto the ball bearing seats, and
install steel balls onto the seats.
(Top: 26 balls, bottom: 29 balls)
Lubricate the top cone race seat with grease.
Screw the cone race in to top ball bearing seat till
touching, and then screw out the cane race
1/4~3/8 turns.
Caution
Check the steering stem that should be rotated
freely and no clearance in vertical direction.
13. Steering / Front Wheel / Front Cushion
Steering stem
mounting nut
Steering stem mounting nut
Bottom ball
bearing seat
Steering lock nut
Top cone-race
Top cone race
Top cone race
Top ball
bearing seat
Steel balls
Bottom cone race
Return 1/2 turns
Locking to
1/4~3/8 turns
13-9