It
is important to distinguish between play in thesuspension
and that in the wheel bearings.
Some
smaller machines are not fitted with dampers on the front
suspension.
Some
fork arrangements rely on the bracing incorporated in the
mudguard fixings to maintain their alignment. A mudguard insecurely
fixed to the forks may therefore adversely affect the handling of
the machine.
Light
misting causing a light film of fluid on a suspension damper is
not a reason for rejection
Pitting
of a fork stanchion is not a reason tor rejection unless
damage to damper seals has occurred. It may be necessary to pull
back any rubber gaiters to conduct this examination if it is possible
without dismantling or damage but they must be correctly refitted.
Anti-dive
front Suspension
Some machines are fitted with an anti-dive system which restrict
front suspension movement when the brake is applied. In these cases
the front wheel will need to be placed against a solid object when
checking the damping.
Light rubbing contact between a fork leg or
damper body and its shroud is acceptable.
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1. Check the condition, alignment and security of the front suspension
assembly.
2. Check condition of suspension springs
3. Check shock absorbers for oil leaks
4. Check for wear in the front suspension assembly
5. With the front wheel raised check that the wheel and its associated
fixing and locking devices are present and secure and that the wheel
bearings are not excessively tight or do not have excessive free
play. Spin the wheel and listen for roughness in the bearings.
6. Observe the freedom of movement and the effectiveness of the
damping by applying the front brake and depressing the forks several
times as far as possible. (see information column).
7. Check the security of the front mudguard and look for evidence
of it having been in contact with either the wheel, the tyre or
any fixed part of the machine.
8. Check condition of steering and suspension with regard to corrosion.
distortion and modifications.
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1.suspension assembly component which is missing, loose, cracked,
or excessively bent, misaligned or corroded.
2. a road spring:
a. incomplete, cracked or fractured
b.worn or corroded so that its cross sectional area is reduced such
that It is seriously weakened;
c.repaired by welding.
3. Oil leakage indicating failure of the seal.
4. Excessive wear or free play in a front suspension component
5.
a. a loose wheel spindle or securing nut(s) or locking device missing
or insecure
b. Excessive roughness, tightness or free play in the wheel bearings
6.
a. fouling between the fixed and moving parts which affects the
movement of the suspension
b. excessive stiffness in the suspensionmovement
c. inadequate damping effect.
7. An insecure mudguard or one able to easily contact the wheel,
tyre or any fixed point of the machine.
8. deliberate modification which significantly reduces the original
strength, excessive corrosion, severe distortion, a fracture or
an inadequate repair of a load bearing member or its supporting
structure.
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