How do I adjust the gears, which have been slipping?
If you mean that your gears are slipping by means of the chain improperly engaging or riding along the walls of the cassettes outer gears, you can adjust the rear derailleur by means of a few tools. You can control how far in and out the derailleur moves by adjusting the two limit screws with either a proper fitting allen wrench or a small phillips head screwdriver. This won't have any affect on the inside gears but if it slips on the outer-most gear, it may help. You can then adjust the cable pull by hand on the adjusting knarp if present on the derailleur. It is the little (sometimes plastic shrouded) adjusting mechanism which the cable housing seats itself in. It is found directly on the derailleur and commonly on the shifter being used with the derailleur. You can rotate the knarp clockwise to loosen the cable or counter-clockwise to tighten. If the knarp has been threaded all the way in or too far out, you can return it to its original position and tighten or loosen the shifter cable manually using either a 5mm allen wrench, a 9mm box end wrench, or a specialty tool. Depending on the positioning of the derailleur and its design, tightening or loosening the cable will affect the position at which it is placed for each related gear. With a little bit of time and examining, you can hopefully figure out the most effective setting which would hopefully allow the derailleur to engage each individual gear without hesitation. To tell wether you adjusted it properly, follow these guidelines. 1, Make sure each gear being engaged is reflected on the position of the shifter. 2, When shifting gears by hand, the chain should not drop below the selected gear nor should it hesitate to move into the selected gear from its previous gear. 3, Check the limit screws position on the derailleur and make sure it is adjusted so your low and high gears are engaged without the chain slipping past the low or high gear, and slipping of the cassette. 4, When tuning the rear derailleur, make sure you account for the change in the chains travel path due to front chainwheel shifts.
- If the derailleur is not an issue, and you attempted to adjust it with similar results afterwards, look over the drivetrain of the bike closely while it is in motion and try to see the exact component that seems to be the source of the problem. I will be happy to dig deeper into this problem if you wish to ask another question regarding this issue. Good luck.
Mar 03, 2011 |
Dahon Speed D7