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Step 1 Put your bicycle on a rack, or hang it by its handlebars and seat. Find the Acera derailleur system near the rear wheel and gears. Locate the three Philips-head screws; these are the limit adjustment screws. There will be letters indented in the metal near these screws; the letters are B, L, and H. download free Massey Ferguson 2615 Repair Manual more. 2008 Polaris Rzr Service Manual download free there. Step 2 Shift your bicycle into the lowest gear using the Shimano shifter on the right-hand side of the handlebars.

Your chain should be on the biggest gear sprocket. Look at the chain and see whether the guide pulley is just clearing the large gear sprocket when you peddle the bike with your hand. If it is too loose, use a Phillips-head screwdriver to turn the B-tension screw one quarter-turn to the left. Keep adjusting until the guide pulley just clears the large gear sprocket. If the guide pulley and large gear sprocket are too close together, turn the B-tension screw clockwise one quarter-turn until adjusted. Step 3 Shift the bike into the highest gear using the Shimano shifter on the right-hand side of the handlebar assembly.