Sym HD 125 Service Manual page 187

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16. REAR WHEEL / REAR FORK / REAR CUSHION
Inspection
Rear wheel rim
Place the wheel rim on a rotational support.
Rotate it by hand and measure the run-out with a
dial indicator.
Run-out limit: 2.0 mm
Rear fork bearing
Free play
Rotate the inner ring of the bearing with a finger.
The bearing should move smoothly and quietly.
Free play
Check the fit of the bearing and rim.
Replace the bearing if its motion is not smooth or
noisy.
Replacement of rear fork bearing
Dust seal
Remove the outside dust seal of the rear fork.
Use inner cir clip plier to remove the bearing lock
clip.
Pull off the rear fork bearing by means of the inner
bearing puller.
Inside collar
Remove the inside dust seal.
Clip
Caution
Never reuse the old dust seal on the bearing. Outside collar
Bearing
Dust seal
Press in the bearing into the rear fork by bearing
Clip
driver.
Install the oil bearing lock clip.
Install new dust seals into rear fork two side.
Outside collar
16-4