APRILIA RS 50 Workshop Manual page 164

Body work
WARNING
When refitting the bearings, use a drift with the
same diameter as the outside race of the bearings.
Do not drive on the balls and/or the inner ring.
Make sure the following parts are fitted together
perfectly:
the right bearing (1) against the hub;
the spacer (3) against the right bearing (1);
the left bearing (2) against the spacer (3).
WARNING
Check the condition of all the components, espe-
cially those listed below.
BEARINGS
Turn the internal race (1) manually; it must turn
smoothly, without sticking and/or noise.
There must be no end play.
Any bearings not meeting these requirements must be
renewed.
WASHERS
Check the condition of the washers, renewing them if
damaged.
AXLE
Using a dial gauge, check the runout on the axle (4). If
the runout exceeds the specified limit, renew it.
Maximum runout: 0.25 mm (0.01 in).
ch. 7
1
Release 00 2001-03
RS 50
3
2
7
4
7-39