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Barnett Ghost 410 Information

3.7K views 5 replies 3 participants last post by  easterbunny  
#1 ·
Prior to assembling the riser to the stock:
1)check axle to axle measurement, correct as necessary by adding or subtracting
twists. Axle to axle too long, add a twist or two. Axle to axle too short, subtract a
twist or two. Record everything you do. This will change your feet per second unless
you add or subtract cable twists.
2)check cam timing. Look down the "Y" of the cable at the cam. Does the "Y" cross
each cam in the same area. If not the cable has to be twisted of untwisted. Do not
over twist to the point you are twisting the "Y" section. If you make adjustments to
the "Y" end of the cable, do the same twists or untwists to the top and bottom of the
"Y" to keep the cams level.
3)check the cables to make sure one lies above or below the other. You do not want to
find one wrapped around the other. If the crossbow is shot with this condition, the cross
bow will be have extreme pressure put on it when cocking or shooting weakening the cables,
string and limbs.
4)thoroughly lube the section of the cable before installing into the cable groove. If this
is not done, the first shot or two there will not be much lubrication in that area until the
cables have crossed each other several times when cocking and shooting.
5)check the top of the cable groove to see if a Teflon strip has been installed and that
it is fully pressed on.
6)when installing the riser press down on the cables as you insert them into the cable
groove. This prevents end pressure on the Teflon strip which may start it to buckle.
7)check all bolts to make sure none are loose but do not over tighten as some go into
plastic and some into aluminum. I do not recommend the use of Loctite because if one
has to remove these bolts, being they are screwed into softer parts, there could be
thread damage.
8)once the crossbow is assembled fully lube the cables and string. Give the rail a light
coat of lube. The lube on the rail reduces friction on the bow string and helps protect
the serving from wear.
9)put a dab of whiteout above the outer edge of the rail on each side. This gives one an
indication that you are cocking the crossbow evenly. When cocking you should hear two
distinct clicks as you reach the fully cocked position. Another indication is to watch the
trigger. It will make two forward movements. Only one click and the crossbow safety
can not be placed in the fire position.
10)whether using carbon or aluminum bolts or arrows, use only 1/2 moon nocks as these
line up properly with the bow string when the crossbow is cocked. Fully seat the bolt or
arrow. All the best.
 
#2 ·
One other check that I would suggest is that once the bow is assembled, check for cam lean. On my 410, I found the easiest way to check for cam lean is to cock the bow, and then lay an arrow shaft across each cam, with the points toward the rail. The shafts should align in a straight line and points should meet. To adjust, add or remove twists from only one or the other (top or bottom) of the Y cables.
 
#4 ·
Easterbunny, A clarification if you would.

My 410 currently has original cables and string and an ata of 20.25. I would like the bow with the new string and cables to have an ata of 19.5.
when I change the cables as directed above, do I change the ata at that point by twisting the cables and then balance the cams? Next I put on the new string. If the ata has changed, do I address that by twisting the cables some more, or twisting the string? I guess I'm mostly confused as to when to adjust the ata
 
#6 ·
The axle to axle measurement as per the manual is just a guide line.

There are two ways that the axle to axle measurement can be changed:

1)adding 1/2 or full twists to the bow string which shortens the string and there fore shortens the axle to axle.
2)adding equal 1/2 or full twists to the single loop end of the cable. This advances the cams, increasing the
speed in feet per second by putting a preload on the limbs.

When ever you make any adjustments, check your cam timing in the uncocked and cocked position.
Also check your cams for being level in the cocked position.

All the best.