Hi there, I don't know much about bike maintenance so apologies for incorrect terminology. I've been trying to adjust the front mech as the chain was rubbing against the deraillieur. Whilst trying to do this i slackened the cable too much and it came out (if that makes sense). I made the necessary adjustment (to stop rubbing) in the lowest gear using the L screw. However, when i tightened the cable again and tried to move up to the biggest chainring it wouldn't move because the cable became very tight very quickly. If I tried to stop this happening it was far to slack when in the bottom gear. What could the problem be?
What do you mean by "when shifting the cable"? Do you mean change the gear at the handle bars, if i do that I can only do about 3 clicks (out of 9) before it becomes too tight to move. This means the derailleur isnt moving across to the middle and highest chainrings.
Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others
yes , move the shifter.you do need to move the pedals (like riding the bike) so the chain can move from one chainring to another.if the chain want to move but doesn't use the adjustment barrels on the down tube until it does.make sure when you start this , the shifter is in the first click. and the cable is taut at the anchor.pull with a pair of pliers.but doesn't move the dérailleur,if you do then it to tight and back off .
The shifter needs to be in its lowest position before attaching the cable to the derailleur.
Flip the smaller shift lever several times. Loosen the cable attaching screw and take the slack out of the cable. Reattach the cable to the derailleur. In the future use the derailleur adjustment instructions found at http://www.parktool.com.