MARIN Owner's Manual page 33

To adjust the high gear adjusting screw, shift the chain so that it is on
the smallest rear cog and the largest chain ring on the front. Turn the
high gear adjusting screw so that the chain just clears the outer
derailleur cage.
SHIFTING SYSTEM CABLES
Derailleur cables should be inspected for wear before each ride,
checking for kinks, broken strands or frayed ends. You should also
check the cable housing for wear. If you find a problem, do not ride
your bicycle until cable has been repaired or replaced.
CHAIN
The chain transmits your pedaling power to the rear wheel, and
moves from sprocket to sprocket as you change gears. You need to
clean and lubricate your chain frequently as it is the most exposed
component on your bicycle. You should spray the chain with a good
cleaner (such as "Simple Green"), and then wash off the cleaner
before applying a high quality chain lubricant.
Proper maintenance and annual replacement of your chain will great-
ly increase the life of your cog set and drive train.
When you're finished adjusting your shifting system, you should
check your work by shifting through all of the front and rear gear
combinations, checking to ensure that the chain does not rub against
the derailleur guides. Remember: if you have any doubts about your
work or if your bicycle maintenance is not covered by this manual you
should take it to your Marin dealer or a qualified mechanic.
28