Results 1 to 4 of 4

Thread: draw length

  1. #1
    Junior Member
    Join Date
    Apr 2011
    Posts
    11
    Post Thanks / Like

    Default draw length

    does anybody know what needs to be done to change draw length from29 " to 28" on Phantom II Pro Series with Dyna cams . the bow is rated 55_70 & 29"draw.

  2. #2
    Senior Member
    Join Date
    Mar 2011
    Location
    Ohio
    Posts
    273
    Post Thanks / Like

    Default

    I believe the Dyna Cam had cam modules on it. Black lobe w/ 2 countersunk screws. These were labeled F2, F3,etc. The Martin archery site has stats and info for draw length adj. per module. F1=27, F2=28 and F3=29. Take the F3 out /put the F2 in. String tension needs relieved by press or adjusting limb bolts out. I'm not sure if this model is capable to adjust out enough. Any how once press relieves tension on cam, expose the cam lobe, unscrew and set in new lobe and tighten. Set string on cam and relieve press tension. Be sure to keep string oriented. Also, if you like wait for some other guys to respond there's always good input from some of them that have been w/ Martin a long time. Specs taken from 2004 chart.
    Last edited by cjchasman; 04-06-2011 at 11:08 AM.
    Chasman, 2010 Martin Bengal 60#,Parker Phoenix 60#, Parker Hornet 70#. Hutch-n-Son strings.'Makes a lot of sense if you don't think about it!

  3. #3
    Super Moderator bfisher's Avatar
    Join Date
    Nov 2005
    Location
    Middletown, Pa, USA
    Posts
    11,626
    Post Thanks / Like

    Default

    cj is right. The Dynacam uses the F modules. I'll take his word for it that you need an
    F2, but lets just say you need a od with one number lower than what's on the bow now if it's set for 29". It's not always necessary to use a bow press or back the limb bolts out to change a module. There are two flat-head caps screws holding the mod to the cam. Just remove them and the mod falls out. However, it's common for one of the screws to be behind the limb fork where you can't get at it. In this case it's usually possible to grab the cable and riser and squeeze the cable toward the riser. This rotates the cam enough (most times) for you to insert and allen wrench and loosen it enough for the module to be removed. If you can'r grip and hold the cable/riser together then try backing off the limb bolts about 4 turns and maybe (my old trick) use a zip-tie to hold them together. When you're done changing the mod then hold them with your one hand and cut the zip-tie with a scissors.
    Last edited by bfisher; 04-06-2011 at 03:53 PM.
    If You're Not Living on the Edge You're Taking Up Too Much Space
    Martin Gold Plus Staff Shooter
    Alien Mafia
    PSAA Life member, UBP Life member
    PADI AOW Diver

  4. #4
    Super Moderator Arrow Splitter's Avatar
    Join Date
    Oct 2010
    Location
    Gilmanton, NH, United States
    Posts
    3,571
    Post Thanks / Like

    Thumbs up

    These guys are right on.
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •