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djgibbens
03-26-2012, 02:19 PM
Sorry - I have never posted before - don't know if i'm doing this correctly.
I have purchased a "bone hunter" which I understand to be equal to a "cheetah."
It was factory set for 60 lb and i am trying to back it down. Made a great buy on craigslist, but bow is for an adult, and I am trying to make it work for a kid. I purchased a module pack to bring down the draw length, but can't get the draw weight lowered enough by just backing out the screws. I am guessing i'm down to 48 lb +/-, and probably need to get to 30 - 35 lbs. Any suggestions?

bfisher
03-26-2012, 02:50 PM
dj,

Welcome to the forums. Hope you enjoy your stay, but I have bad news for you. At the base of the limbs there should be a number/letter (3M) designating the limb deflection. For you to use the bow for any length of time at 35# or so you'd be better served to get lighter limbs. 50# (1M) limbs can be backed off easily to 35# and shot that way indefinitely. I would suggest looking in the classifieds at Archery Talk for a good used pair. You'd want 13", 1M or even 1L limbs.

Not knowing the "kid" if he can only draw 30-35# right now I doubt that he'd work into 60# any time soon so maybe you could find somebody willing to swap you even up if you're lucky.

Ehunter
03-26-2012, 02:51 PM
Martin says that 5 turns out on the limb bolts is the lowest setting that's safe to shoot. That should be a 15# drop from the 60# max. roughly, so 45#. That being said, I have a 60# Rytera that I have turned down to 38# for my girlfriend to shoot, and so far haven't had any problems. She's put a couple hundred shots through it, and it seems to be fine. I do realise that if anything goes wrong, I won't expect Martin to stand behind it though, having been shot out of spec.

djgibbens
03-26-2012, 03:30 PM
Thanks for the suggestions.
Are you telling me I might be able to back out beyond 5 turns?
How will I know when I need to stop?
Anybody have thoughts about changing the string?

Hutch~n~Son Archery
03-26-2012, 04:14 PM
Thanks for the suggestions.
Are you telling me I might be able to back out beyond 5 turns?
How will I know when I need to stop?
Anybody have thoughts about changing the string?Welcome to the forum djgibbens. Your bow is a 45-60 so the least you would be able to get out of it would be 42 to 45 pounds. This is probably already mentioned above. By turning the limb bolts all the way in the bow will probably read 60 to 62lbs. Backing out the bolts 1 turn on bottom and top is minus 3lbs continue 5 times and it will be 42- 45lbs. If you look in the barrel nuts on the riser you can see the bolt inside if you go to far you will be able to see the end. As far as changing the string, you can not shorten the string to shorten the draw length. But to replace it, all you have to do is loosen the limb bolts equally till the string comes loose.


Hutch:cool:

cmwr
03-26-2012, 04:22 PM
When I was in 8th grade, my father bought me my first compound bow for my birthday. It was 1985 and the bow was an old Bear Magnum hunter. It was a 45-60 lb pull and I was a scrawny little thing. We backed them limb bolts out and out and out trying to relax the cables to lower the draw length. The bow came apart. Luckily the limbs were relaxed enough we didn't get hurt. We had to hire a local bow shop to put it back together. Anyways I am confident that i had the bolts down after the repair to close to 40 lbs just so i could pull it. After a few months of shooting I had it up to 55 lbs or so and was shooting comfortable. Amazing how shooting builds the particular muscle groups you need to develop so quickly.

djgibbens
03-26-2012, 04:28 PM
Sorry to be so ignorant .... is it correct to understand that I will be safe to back out the nuts until I can see the end just coming out, then turn back in a half turn or so?

I don't want the thing to unwind on me!

Hutch~n~Son Archery
03-26-2012, 04:32 PM
It is not recommended to shoot it with more then 5 turns out. Thats not to say it has not been done.


Hutch:cool:

Speedykills
03-26-2012, 06:41 PM
A person was killed when there bow blew apart,when it's your time it;s your time,but no need to push it.............

gravedigger
03-27-2012, 05:46 AM
Sorry to be so ignorant .... is it correct to understand that I will be safe to back out the nuts until I can see the end just coming out, then turn back in a half turn or so?

I don't want the thing to unwind on me!
welcome to the forum
i would not shoot the bow past 6 full turns.i know other people have shot past that but i would not push it.its all comes down to safty for me and warrenty.if you go past 5 turns(15lbs)and something breaks on the bow at draw or release then the blame would be on you along with the cost of a new bow or parts.best off totry and find a swap for them 50lb limbs.this is all just a IMO thing

SJunior
03-27-2012, 05:55 AM
Get different limbs or get a bow that fits. I wouldn't shoot a bow more than 5 turns out and wouldn't suggest it to anyone either, escpecially a kid. Better safe than sorry.

bfisher
03-27-2012, 10:33 AM
Guys, I have been in contact with dj via PM and made some suggestions based on my experience. I suggested short stringing the bow one inch and backing the limbs off by 8 turns With so much less stress on the limbs I don't foresee a problem so long as the limb bolts have a full barrel nut. I made other suggestions as well, but this is the most of it. I also told him this is not the best solution but the lad he's working with has never shot a bow before so after shooting a while he should get the right muscles moving the right way and develop more strength in a fairly short time.

As some of you already know I had a 2007 Pantera, 55#, that I backed off to 27# and shot it for several months that way (long story). So I think we can make this work for a short amount of time.

Hutch~n~Son Archery
03-27-2012, 10:50 AM
Sounds great Barry! hope he goes with it.





Hutch:cool:

bfisher
03-27-2012, 11:09 AM
Sounds great Barry! hope he goes with it.





Hutch:cool:

Thanks Bill. I'm pretty sure he's going to try it. He should get back to me in about a week. I know some guys are going to disagree with me. I know lighter limbs would be the best choice in the short term, but tyring to keep his wallet closed, and it's not a forever situation. The boy is 13 and about 5' tall. I figure if he gets proper guidance he should develop fairly quickly. And by the way, he told me that somebody at Martin (Joel?) suggested he short string it, too. Don't forget. This can drop 5-8# off the draw weight range right from the git go so I hope it works. It's a lot cheaper than new limbs or bow.

Hutch~n~Son Archery
03-27-2012, 11:20 AM
Yeah Barry, I know it will work. djgibbens just didn't clarify what exactly he was thinking of doing and I didn't want to steer him in the wrong direction Just to have it come back on me. I understand what he is up against. I did close to the same thing with my daughter. I also used a pulley, rope, handle and some weights to set her up with an exercise machine.It simulated pulling a bow. I made her do both arms. In about 6 months she was ready to hunt.



Hutch:cool:

djgibbens
03-27-2012, 03:50 PM
Hey guys!

I just want to thank all of you for looking in on my project. Especially Barry!

I will be able to venture into this sometime in the next week or so, and really appreciate the coaching.

If I lose confidence in myself or the safety of the resulting set up, I'll back off.

My experience tells me that the further I get into this, the more informed I will become - so I'm looking forward to the adventure!

Thanks again for all the help!

djgibbens
03-27-2012, 03:53 PM
When I change out the string, do I need to put in a peep sight prior to stringing up? Or is that done after I establish that my kid can pull the new set up?

Phantonza
03-27-2012, 09:44 PM
Guys, I have been in contact with dj via PM and made some suggestions based on my experience. I suggested short stringing the bow one inch and backing the limbs off by 8 turns With so much less stress on the limbs I don't foresee a problem so long as the limb bolts have a full barrel nut.

I think installing locking bolts (with nylon tip - these are very inexpensive parts) to the barrel nuts could be a good idea to confirm safety. The draw weight bolts tend to creep a little to the open direction if not locked.

bfisher
03-28-2012, 02:47 AM
I think installing locking bolts (with nylon tip - these are very inexpensive parts) to the barrel nuts could be a good idea to confirm safety. The draw weight bolts tend to creep a little to the open direction if not locked.

Very good suggestion. One I thought of but just didn't post. I have them on both my Ryteras although mine have the brass tips.

djgibbens
03-30-2012, 07:49 AM
Hey guys! ---- me again.

I had a few hours yesterday, so I took the original string off, and bought a 1 1/2" shorter string to go back on with. I took some pictures before removal, thinking it would help me re-string. I ran out of time and had to put it all back in the closet until this weekend. Looks like a soup sandwich to me right now :)

I think I can figure out where everything goes, from the cam diagram on Martin's web site, but I wonder if anybody's got tips for getting the bow back together without a bow press?

Any suggestions would be greatly appreciated.

Thanks.

jeadcock
03-30-2012, 08:24 AM
Presses are best due to the even tension put on the limbs. It also secures the bow for ease of maintenance. I do 99% of my own work. I work on all my buddies bows and save them a little cash. ....its best to take a picture of the cams to help with the install. Bowmaster has a pocket size cable and turnbuckle press for about 40$ @ the box stores. I have heard of ratchet wraps being used, but secure them good. Also if all else fails, bass pro and Cabela's and others may not charge to put a sting on. The just may not do it if its not spec. Good luck and BE CAREFUL.

gravedigger
03-30-2012, 11:06 AM
once you know how the string and cable goes just tighten your limb bolts down 2 turns at a time(top then bottom) till you get the tension you need.buying a press is a un nessery cost but haveing one will no doubt save you 2 or 3 min.what year is that bow and what cam does it have on it?

djgibbens
03-30-2012, 11:24 AM
I believe the bow is 2010 - maybe 2011.

Bought used - don't know the cam. Taking about 1 1/2 inch off of the original string. I am without experience .... getting coached on this forum.

Hutch~n~Son Archery
03-30-2012, 11:38 AM
On the bottom limb sticker. You will have a few lines of info.
Let off
shoot
buss
draw length
draw weight
one of them will have a bunch of numbers. The first two numbers is the year.
Take a pic of the bow and post on this thread and we will walk you through it.


Hutch:cool:

gravedigger
03-30-2012, 11:39 AM
I believe the bow is 2010 - maybe 2011.

Bought used - don't know the cam. Taking about 1 1/2 inch off of the original string. I am without experience .... getting coached on this forum.

info is on the limb sticker as far as year goes,it will be the bow number and the first 2 numbers on your sticker will be the year,if it is 2010 or 11 then it is the acutrac cam.my camera is packed(i just bought a house and moved)in a box but if i can find it then i will take some good pics and post them.
yep that 1 1/2 inch might need a press but it never hurts to try and get it back together befor ya find a press.best of luck

djgibbens
03-30-2012, 12:10 PM
On the bottom limb sticker. You will have a few lines of info.
Let off
shoot
buss
draw length
draw weight
one of them will have a bunch of numbers. The first two numbers is the year.
Take a pic of the bow and post on this thread and we will walk you through it.


Hutch:cool:Thanks - I'll get to it Sunday (I hope).

Thanks for hanging with me!

djgibbens
07-13-2012, 01:53 PM
Guys, I was not able to get the shorter string on without a press so I found a local bow tech who was willing to help me out.

The shorter string (along with backing out the limbs) took the draw weight down to 27#'s! My youngster will be able to hunt this bow now and as he grows.

I am very grateful for the encouragement along the way.

Thanks!

Hutch~n~Son Archery
07-13-2012, 04:20 PM
I love stories like this! Kids getting into archery. I am very glad it worked for you. Now the fun begins. Hunting Season!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!




Hutch:cool: