Bow Setup Tuning.pdf

Compound Bow Set-Up & Tuning Procedure

Rev 02/12/08

1. Remove bow from shipping box. Remove bow from plastic bag and remove the owner’s guide and other

promotional material from the bow.

2. Read the Owner’s Guide before using the product .

3. Inspect the bow to insure that the cables and string are in their tracks on the cam and attached to the posts

properly. Check all screws and bolts to insure they are not loose, including rubber dampers and cam

modules and/or inner cams.

4. Set Draw weight: Adjust draw weight to the desired level by turning the limb bolts clockwise to increase

weight and counter-clockwise to decrease weight. Turn both limb bolts equal amounts for the initial setting.

5. Set tiller: Check tiller before making any other adjustments. The distance from the riser to the string, as

shown in the photo below, should be the same for both the top and bottom limbs. If the distance is the

same, no adjustment is required. If the distance varies more than 1/8”, adjust the limb bolts the same

amount in OPPOSITE directions until the tiller is correct. For example, if the top limb bolt is turned

clockwise a half a turn, the bottom limb bolt must be turned counter clockwise a half a turn. For One-Cam

bows, the tiller must be measured by tying a thin piece of string from one axle to the other and using that

string to measure tiller.

6. Checking static cam orientation: With the bow at rest, generally the cam orientation marks on the cam

should be within a string width of being on the marks when the string is in the center post or the post with

the dot. Orientation marks will not line up if the string is on the “+” post or the “-“ post of the cam. Timing

mark location varies with bow model and draw length. It is important that the timing marks be symmetrical

from top to bottom. Example: if the string is to the rear of the timing mark at the top cam it should be

approximately the same distance to the rear on the bottom cam.

7. Checking draw stops for bows equipped with a Hybrid Cam System: With the bow at full draw, and the split

harness cable making contact with the draw stop on the bottom cam, the control cable should also be

making contact with flat portion of the module on the upper cam. Twist or untwist the control cable to adjust

the upper cam so that the string contacts the flat correctly.

Draw Stop on

bottom cam

Cable makes

contact with the

flat on the

module on the

upper cam.

Checking timing for bows equipped with a twin cam system: While drawing the bow, both cams must roll

over at precisely the same time. Timing is adjusted by either twisting or untwisting one or both of the cables

until cams are synchronized.

8. Recheck steps 5, 6 and 7 in sequence until everything is correct.

9. Install the arrow rest carefully following the instructions for the rest. Mount arrow rest to the bow utilizing the

Posi-Lock feature if available.

Bows equipped with this slot

can utilize the rest’s Posi-

Lock feature to locate the

arrow rest securely into

position.

10. For all styles of arrow rests set the center shot adjustment on the rest so that the arrow is parallel to the

alignment mark.

Alignment Mark

11. Using the nocking loop and the rest adjustment, set the arrow horizontal so that it is parallel to the

alignment mark on the window of the bow and passes in front of the arrow rest mounting hole.

Alignment mark

Arrow rest

mounting hole

12. If using a fall-away arrow rest with an arrow holder, clean the mounting area on the riser with alcohol. Then

attach the arrow holder to the riser using cyanoacrylate glue, such as Carbon Force Advance Instant

Adhesive, so that the arrow rests in the holder when the bow is at rest.

Arrow Holder

13. For a fall-away rest:

•

Tightly serve an area on the downward-traveling buss cable going down a

minimum distance of 1¼” starting 1½” below the shelf. This serving prevents

the rope from sliding up the cable during use.

•

Cut a 5” piece from the rope provided and burn each end into small balls to

prevent slippage.

•

Tie an overhand knot in one end of the rope and slip the rope through the hole

in the rest.

•

Tie another overhand knot in the 5” rope 1-1/8” from the first knot.

•

Slip the 5” rope through one end of the spring and tie an overhand knot in the

end of the rope.

•

Burn one end of the remaining piece of rope, tie an overhand knot in one end

and slip the rope through the other end of the spring.

•

Attach the loose end of the rope below the serving on the cable using a cow-hitch knot.

•

Draw the bow to see if the launcher lifts to its most upright position. The rope should be shortened

until the rest comes to its full upright position in the last 1½” to 3” of draw.

•

Once length is established, cut off excess rope, untie the cow-hitch knot burn the end of the rope

into a ball and retie the knot.

14. TM style rests should have the spring tension set so that the rest remains in the full upright position before

the bow is drawn back.

15. Check the arrow vane clearance from the cables prior to final setting of arrow rest and adjust the cable

guard so that there is between 1/16” and 3/16” clearance. Recheck arrow rest settings.

1/16” to 3/16”

16. Set peep height and tie in the peep. Tie in the peep with serving material. Slide the peep either up or down

so that it is approximately even with the eye when the bow is in the fully drawn position.

1. Insert the peep through the

string halves and slide to the

desired location

2. Use the nylon serving provided

to serve below the peep.

3. Next, serve above the peep.

4. Cut hose length so that is

slightly taut when stretched

from the peep at full draw to

the cable nearest the string.

Push the hose onto the peep

so that it completely covers the

rod.

5. Tie the hose to the cable

nearest the string using a lark’s

head knot.

17. Install the sight following carefully the instructions provided with the sight. Some bows are equipped with

multiple holes for mounting the sight. Select the set of holes that allows the short-distance pin in the sight to

be toward the top of the sight when viewed through the peep sight with the sight in the middle of it’s vertical

adjustment range. This allows for use of multiple pins.

Holes for mounting sight

Short-distance Pin

Set sight in the middle of

the elevation adjustment

range.

18. Secure the bow in a bow vise in a level position. Adjust the bow so that it is level. Place a leveling device

on a flat surface of the sight mounting bracket. With the bubble in the leveling devise centered, adjust the

sight so that the bubble in the sight is centered.

19. Adjust the third axis of the sight. Check the third axis leveling by tilting the bow forward. The levels on the

sight and the riser should still be centered. Then tilt the bow to the rear and make the same check.

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