VMM Software

The Testers Manual

9.2 Motorcycle Derived Steering / Suspension Systems

Information
Method of Inspection
Reason for rejection
This section should be read in conjunction with sections 2.3 - 2.7 of this manual
 
1. Examine the handlebars and fork yokes
1.   A Handle bar or fork yoke
a. deformed
b. fractured
c. cracked
d. excessively corrode
e. clamps not tight, or any bolt loose or missing
f. handgrips missing or not secure to handle bars
g. handlebar flexible mounting excessively deteriorated.
2. Turn the steering from lock to lock with the steered wheel both on a turning plate and clear of the ground
2.
a. any fouling or restriction of the free movement of the steering from lock to lock.
b. handlebar grip/s or handlebar mounted control/s have no clearance with any other part of the machine when the steering is placed on either full lock.
c. Steering movement excessively stiff or rough.
 
3. Examine the steering damper.
3. Steering damper
a. insecure
b. ineffective
c .impairing the steering action
4. Examine the steering head bearings.
 
4. Excessive free play in the steering head bearings.
Reason for rejection 5 does not apply to fork gaiters or shrouds

5. Examine the front fork assembly.
5. A fork assembly component which is
a. missing
b. loose
c. cracked
d. excessively bent, misaligned, corroded, worn, or has excessive free play between the sliding members of the forks, the pivot bearings or bushes.
e. restricted in operation
f. fouling
 
6. Examine the suspension springs.
6. A suspension spring
a. incomplete
b. cracked
c. fractured
d. excessively worn or corroded such that its cross sectional area is reduced to the extent that it is seriously weakened
e. repaired by welding
Leaking Dampers
Light misting of the fork stanchion is not a reason for rejection
7. Examine the suspension dampers.
7. A suspension damper
a. insecure
b. leaking
c. fouling
d. with inadequate damping effect
8. Examine the hub/wheel assembly.
8. A hub/wheel assembly with
a. a loose spindle or securing nut(s)
b. a spindle securing nut locking device missing or insecure
c. excessive roughness, tightness or free play in a bearing
d. any part of the assembly fouling another component.
 
 

9. Examine the vehicle structure

9. 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 suppporting structure or supporting panneling within 30cm of any sub frame, spring, suspension or steering component mounting, that is within a prescribed area.
Issue Date 10th January 2005