CHANGING THE DRAW
Tru-ARC cams are different from any other cam on the market. The
thing that makes them special is when you move the modules, they
automatically adjust the rotation of the cams for peak performance and
optimum nock travel condition at each individual draw length.
Your Tru-ARC cam comes with all the modules you need to cover all of the
available draw lengths. You have a Long module marked with an L-(letoff)
and a Short module marked with an S-(letoff). Consult the module chart at
your local dealer or at www.martinarchery.com to see which mod you need to
fit your specific draw length.
You will need to put your bow in a bow press and relax the strings and
cables before adjusting the draw length. NOTE: Back your bow off
to the minimum weight setting before pressing. This will put less stress
on the bow and make your adjustments easier to accomplish. To move the
modules, you will need to remove or loosen the mod screws and rotate the
mod to the proper letter. Higher letters give the longer draw lengths.
TIP: for optimum performance, both modules need to be in the same
setting. However, if you need an additional 1/4" draw adjustment, you can
move the upper module up or down ONE setting from the actual letter that
the bottom is set. This does compromise performance slightly, but it is a
great way to tweak the draw that last little bit if needed.
STRING INSTALLATION AND CAM ROTATION
Refer to the diagram on the right for the proper string
configuration. Proper string lengths for your model may be found on our
web site or at your local dealer. Your cam rotation is pre-set at the
factory and should not need adjusting, but refer to the position of the
cams to the left. This is the optimum rotation. If it is other than what
you see here, check your string lengths. |
Click Image to zoom |
