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Front wheel mounted on a surface plate for steering head bearing lower race check

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tester will perform a check of the steering head bearing lower race by mounting the front wheel on a surface plate, then performing a lock to lock check with the weight of the machine on the lower bearing (see illustration 3).

• Grasp the fork sliders (lower legs) and attempt to push and pull on the forks (see illustration 4). Any play in the steering head bearings will be felt. Note that in extreme cases, wear of the front fork bushes can be misinterpreted for head bearing play.

• Check that the handlebars are securely mounted.

• Check that the handlebar grip rubbers are secure. They should by bonded to the bar left end and to the throttle cable pulley on the right end.

Checking the steering head bearings for freeplay


Front suspension

• With the motorcycle off the stand, hold the front brake on and pump the front forks up and down (see illustration 5). Check that they are adequately damped.

• Inspect the area above and around the front fork oil seals (see illustration 6). There should be no sign of oil on the fork tube (stanchion) nor leaking down the slider (lower leg). On models so equipped, check that there is no oil leaking from the anti-dive units.

• On models with swingarm front suspension, check that there is no freeplay in the linkage when moved from side to side,

Rear suspension

With the motorcycle off the stand and an assistant supporting the motorcycle by Its handlebars, bounce the rear suspension (see illustration 7). Check that the suspension components do not foul on any of the cycle parts and check tfiat the shock absorber(s) provide adequate damping.


 



 


 


Hold the front brake on and pump the front forks up and down to check operation


Inspect the area around the fork dust seal for oil leakage (arrow)


Bounce the rear of the motorcycle to check rear suspension operation


ref.24 MOT Test Checks





 


 


Checking for rear suspension linkage play


Worn suspension linkage pivots (arrows)


Дата добавления: 2015-10-29; просмотров: 152 | Нарушение авторских прав


Читайте в этой же книге: Dust, eye and hand protection | Nuts and split pins | Thread repair | And sealing compounds | Internal micrometer | Oil pressure gauge and take-off point adapter (arrow) | Check for warpage in these directions | Temperature change | Typical bearing failures | Breaking and joining final drive chains |
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Or thick card and self-locking grips| Grasp the swingarm at the ends to check for play in its pivot bearings

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