How To Adjust A Shimano Altus Derailleur. How do you adjust the gap between the pulley and the sprocket when there is NO B. Spin the cranks of the bike and allow the chain to shift all the way down to the smallest cog on the cassette.
To adjust the height of the front derailleur locate the positioning clamp that connects the derailleur to the frame of the bike. Or a simple process. First position yourself at the rear of your bike so you can see how well the rear derailleur is lining up with your cogs.
Or a simple process.
However the derailleur pulley is actually contacting the largest ring lowest gear making for hard shifting and a lot of clatter. If you do not have a work stand set the bike upside down on its handlebars and seat in order to work. Use the barrel adjuster to fine-tune its position. Loosen the cable adjustment barrel until the chain touches the 3rd sprocket counting from the smallest sprocket and makes a noise.
