REQUIRED TOOLS
Tong
screwdriver
STEP 1
Select the lowest gear possible. The larger and closer to the spokes of the wheel.
Note: Each screw is identified by a letter printed on the front derailleur.
STEP 2
Check the derailleur. Make sure that the derailleur, selecting the lower gear. Do not come into contact with the pinion, you would realize it, because of the noise while riding.
STEP 2a
If the derailleur gear comes in contact with the reel gear use the screw marked with the letter L, on the rear of the derailleur, to align it correctly. Replace the screw in a clockwise direction, enough to move the derailleur of a few millimeters.
STEP 2b
If the derailleur is too far away from the spool, loose the screw relative to the low gear (marked with the letter L) until the distance is not reduced to a few millimeters.
STEP 3
Check the thread tension change. The cable tension is adjusted by the screw where the cable comes out of the gearbox. Replace the screw to have no tension on the cable, this operation is important for the next step.
STEP 4
Select the highest gear and see how the chain is positioned throughout the spool to the smallest cog. If you see that the chain is not centered on the smallest cog, but try to go up to the next gear or jump off the spool into the hub of the wheel, act on the screw of the front derailleur marked with the letter H. replace the screw, or loosen it, so to align the derailleur with the smallest sprocket of the sprocket. Now you can put tension on the wire gear by unscrewing the screw.
STEP 5
Select the lowest gear to make sure the chain does not tend to get out of the spool. As noted in the previous step as the chain runs on all speeds up to the largest cog. If you find that the chain tends to get out of the spool to go to the spokes of the wheel, or tent instead to jump on the next gear, act on the screw of the front derailleur marked with the letter L in order to align it with the largest sprocket. Check your settings changing gears using the lever on the handlebar.
STEP 6
Try to change all gears, starting from the lowest to the highest, and vice versa, in order to check that the chain steps for all the sprockets of the sprocket. If you have difficulty in changing gear from highest to lowest (from the smallest sprocket to the larger one), act on the tension of the cable that moves the derailleur. Unscrew the screw that adjusts the voltage to increase. Conversely, if you have problems with climbing gear (the pinion largest to the smallest) tighten the bolt (turn it clockwise) to have less tension on the cable.
Attention
Check that you have made a good repair, performs a test before using the bike, in case you encounter any problem, please contact your trusted bicycle repair shop.