Re: Lefty com menos de 110mm? A solução está aqui!
Caros colegas!
O reset da suspensão é algo necessário de 25h em 25h como refere no manual. As vezes menos tempo, outras mais, vária do tipo de utilização que lhes dão e tipo de terreno.
Efectuar o reset não é nada demais, basta ter confiança naquilo que se está a fazer, sem medo!
O primeiro passo é medir o comprimento total da suspensão e anotar, se tiver menos que 656mm, está na hora... (Ver foto)
1º Passo - desapertar o guiador
2º Passo - retirar o Rebound Knob
3º Passo - retirar o Lockout Lever
4º Passo - retirar o Bumper
5ºPasso - retirar os Cable Guide
Agora o interior da lefty irá subir e ficar livre. Agora é a parte importante!!!
Segurando na roda, extende-se a suspensão puxando para nós o guiador, o corpo da suspensão entra dentro e vamos dando ligeiras puxadelas...
A suspensão cresce ficando com 695 mm aproximadamente, nesse ponto o reset está feito e agora é só montar tudo novamente...
Needle Bearing Migration Reset
NOTE: Ideally, reset the bearings after 25 hours of normal riding or 10 hours of hard riding/racing to maintain optimum fork performance.
We recommend that the needle bearing reset procedure should be performed by a professional mechanic.
Explanation
Inside the fork the four needle bearing cages (1) move independently up and down between each inner (2) and outer race pair (3). This bearing arrangement provides numerous advantages to fork performance but requires simple periodic maintenance to ensure proper alignment.
Bearing Migration
If a cage or cages shifts out of alignment up or down in relation to the others it is said to have “migrated.” This migrated condition will limit travel.
Needle bearing migration is normal and expected. However, if the fork is ridden in this state for extended periods, the fork can be damaged.
Evidence of migration is:
1 An unusual "top out" noise .If an unusual noise is heard, the extended fork length should be measured to confirm the condition.
2. The fork’s maximum extended length is reduced.
If migration re-occurs frequently (immediately after resetting), the cause could be damage present in the inner or outer races, ,bearings/cages or other fork parts. Inspection and replacement of damage parts will be required to correct a persistent problem with bearing migration.
ALIGNED MIGRATED
Resetting Migrated Needle Bearings
1. Place the bike in a work stand. Release all the air pressure through the Schrader valve.
2. Remove the rebound knob and lockout lever. Remove the outer cap with the Shimano bottom bracket tool TL-FC32. See page 5.
3. Compress the telescope and remove the two split rings from the top cap..
4. Fully extend the fork, and measure from top edge of outer tube to bottom edge of spindle. See right. If the length is out of specification do the following:
Firmly extend the telescope until it stops (tip - listen for the knocking at full extension to change from a hollow sound to a solid sound - this indicates full extension has been achieved). Do this several times using only moderate force, extend the lower fork leg using a pumping action.
After, you have performed this action several times, re-measure.
espero que seja mesmo avaria.
