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8 . 8
Brakes, wheels and tyres
12.2 Check the wheel for radial (out-of-
round) runout (A) and axial (side-to-side)
runout (B)
the brake cable from the underside of the
lever as you remove it.
2 Installation is the reverse of removal. Apply
grease to the pivot bolt shank and the contact
areas between the lever and its bracket, and
to the brake cable nipple (where applicable).
12 Wheels
-
inspectic 3 n and re!
1 In order to carry out a proper inspection of
the wheels, it is necessary to support the
scooter upright so that the wheel being
inspected is raised off the ground. Clean the
wheels thoroughly to remove mud and dirt
that may interfere with the inspection
procedure or mask defects. Make a general
check of the wheels (see Chapter 1) and tyres
(see Daily (pre-ride) checks).
2 Attach a dial gauge to the suspension
(front) or the transmission casing (rear) with
the tip of the gauge touching the side of the
rim (see illustration). Spin the wheel slowly
and check the axial (side-to-side) runout of
the rim, then compare the result with the
specifications at the beginning of this
Chapter.
3 In order to accurately check radial (out-of-
round) runout with the dial gauge, the wheel
should be removed from the machine, and the
tyre from the wheel. With the axle clamped in
a vice or jig and the dial gauge positioned on
the top of the rim, the wheel can be rotated to
check the runout.
4 An easier, though slightly less accurate,
method is to attach a stiff wire pointer to the
front suspension or transmission casing with
the end of the pointer a fraction of an inch
from the edge of the wheel rim where the
wheel and tyre join. If the wheel is true, the
distance from the pointer to the rim will be
constant as the wheel is rotated. Note: I f
wheel runout is excessive, check the wheel
bearings very carefully before renewing the
wheel (see Section 16).
5 T h e wheels should also be visually
inspected for cracks, flat spots on the rim and
other damage. Look very closely for dents in
I
Chwk
tor
contact h6m
13.4 Wheel alignment check using strlng
the area where the tyre bead contacts the rim.
Dents in this area may prevent complete
sealing of the tyre against the rim, which leads
to deflation of the tyre over a period of time. If
damage is evident, or if runout is excessive,
the wheel will have to be renewed. Never
attempt to repair a damaged cast alloy wheel.
13 Wheels
-
alignment cnecK
1 Misalignment of the wheels can cause
strange and potentially serious handling
problems and will most likely be due to bent
frame or suspension components as the
result of an accident. If the frame or
suspension are at fault, repair by a frame
specialist or replacement with new parts are
the only options.
2 To check wheel alignment you will need an
assistant, a length of string or a perfectly
straight piece of wood and a ruler. A plumb
bob or spirit level for checking that the wheels
are vertical will also be required. Support the
scooter in an upright position on its stand.
3 If a string is used, have your assistant hold
one end of it about halfway between the floor
and the rear axle, with the string touching the
back edge of the rear tyre sidewall.
4 Run the other end of the string forward and
pull it tight so that it is roughly parallel to the
floor. Slowly bring the string into contact with
the front sidewall of the rear tyre, then turn the
front wheel until it is parallel with the string.
Measure the distance (offset) from the front
tyre sidewall to the string (see illustration).
Note: Where the same size tyre is fitted front
and mar, there should be no offset.
5 Repeat the procedure on the other side of
the machine. The distance from the front tyre
sidewall to the string should be equal on both
sides.
6 As previously mentioned, a perfectly
straight length of wood or metal bar may be
substituted for the string (see illustration).
7 If the distance between the string and tyre
is greater on one side, or if the rear wheel
appears to be out of alignment, have your
machine checked by a Peugeot dealer.
8 If the front-to-back alignment is correct, the
wheels still may be out of alignment vertically.
9 Using a plumb bob or spirit level, check the
rear wheel to make sure it is vertical. To do
this, hold the string of the plumb bob against
the tyre upper sidewall and allow the weight to
settle just off the floor. If the string touches
both the upper and lower tyre sidewalls and is
perfectly straight, the wheel is vertical. If it is
not, adjust the stand by inserting spacers
under its feet until it is.
10 Once the rear wheel is vertical, check the
front wheel in the same manner. If both
wheels are not perfectly vertical, the frame
and/or major suspension components are
bent.
Rwrtynmustb.
at
tmnt
and
back
13.6 Wheel alignment check uslng a
straight edge
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