Step # 1 Installing Strings
The first thing you should do is put your bow in the
bow press and tighten slowly until string and cables are just lose. You can get a good Apple press from J & J Archery
Repair on the home page.
Next open your package with the string and cables.
Be very careful not to bend serving hard because they are put on at 300+ pounds of pressure and bending them will cause separation
because they are not under tension. When they are put on the bow they will go under tension and string will strink causing
the serving to loosen a little for fit. If you bend or twist serving hard or alot looking at it the larger string
due to no tension will cause serving to separate because its larger when not under tension. Also when the string is put under
tension any small cracks will close after a few shots because the string strinks and the serving will tighten up due to the
shrinking of the string.
Next take the old cable off the bow. Then take the
new cable by the hand and hold the ends so not to let the twist come out when you cut the string that is holding the ends
together. If you drop it or twists come lose don't worry. No big problem. No matter what you do you have to add and subtract
twist for tuning.
Next install the new cable. Start with the split "Y"
ends. Then attach the other end to the cam. If you have no split "Y" put the longer serving on the top cam and shorter
serving on bottom. Its the opposite for the other cable.(Bi-Nary/Tri-nary cams)
Next take off your old string and cable slide. Then
take your new string and cut string that is holding the ends together just like the cable so not to let twists out. Put the
new string on. If you don't know how to put the string and cable back on the right posts then you should have
a pro shop do this.
Now carefully check to make sure that everything is
hooked up the same as before and slowly release tension on press and watch to make sure that none of the strings come off
end posts or out of cam/idler wheel tracks. Your strings are now on the bow and ready for tuning.
Step # 2 Tuning your string and cables for draw length
It is very important that you know and understand
how the bow works with your strings. The information below will explain how your bow works and how strings and cables work.
This information is needed before tuning.
The first step in tuning your string and cables is
checking the bow to make sure its hooked up right. Check where the cables cross by the cable guard. There should be a small
space between the cable and string on a solo cam and on two cam/hybrid cam should cross in the middle.
After you have checked the bow to make sure its hooked
up right its time for cam or idler wheel alinement. Add twists to either side of the split "y" on the idler wheel
or cam until it runs true with string. Most bows you will need to add 5 or so twists to get the cam or idler wheel level.You
can use a arrow on the side to make sure it runs true to the string. This fixes any cam lean and sets cam or idler wheel
for level travel.See picture on the side.
Now that your bow is in alinement so the cam or idler wheel is producing
straight roll over and straight nock travel on the horizontal level. Its time for the next important step. Adjusting your
draw length. This is what world field archery and national target archery champion Larry Wise says about draw length. "If
you don't plan on adjusting your bows draw length so you shoot it from the middle of the valley, then don't plan on
winning the tournament next week and don't plan taking that trophy whitetail next hunting season."
This part is where people really pull their hair out
and even pro shops make big mistakes. Most people focus so hard on axle to axle and braceheights being perfect
that they lose sight of what's important. Accurate cast of the arrow by cam rotation and draw length.
In the picture on the side the string is put on the
#1 posts which gives the bow a 1/2" longer draw length at 28.5 inch because when moved to the posts its just like adding
1/2" to the string making the draw 1/2" longer. The axle to axle length is 33 1/4 and brace-height is 6 3/4. The
bows poundage is 72.
In the picture here the string is set on the #2 posts for a draw length
of 28 inches. The axle to axle is 33" and the brace-height 7". The poundage is 71 pounds.
This here is the call out specs for this bow.
So as you can see from the top specs and the bottom specs that the axle to axle and brace-height change when the draw is changed.
If they don't then your draw will never be right and the poundage will be different.
In the picture on the side the string is put on the #3 posts. This
shortens the draw 1/2" just like shorting the string a 1/2". So the draw length is 27.5" and poundage is 70
pounds. The axle to axle is 32 3/4 and the brace-height is 7 1/4.
So as you can see the axle to axle and the brace-height change depending
on your draw length. If they don't change then your poundage doesn't stay consistent and its impossible to get the
correct length. They must change to fit your poundage and draw length.
Your string and cable or cables are adjustable from
1/2" to 1" in length. This is plenty of room for adjustments just in case the manufacturer give you the wrong length.
"To be continued!!"