Founded in 1984 by Robert Errett, Parker Compound Bows is a company that focuses on archery equipment, including bows and crossbows. Parker produces several models of compound bows, each with its own features and specifications to match the demands of different shooters. To maintain consistency and accuracy, Parker compound bows require general maintenance and tuning, a process of maintaining the bow to factory standards.
Care For the Strings
Bowstrings on Parker compound bows are specifically designed to fit Parker bows. As a result, Parker recommends using only Parker strings if the bowstring needs to be replaced for tuning. Using other bowstrings can reduce the bow's draw weight, causing improper cam rotation and reduced accuracy. Routinely condition and tune the strings with a silicone-based wax. Inspect the condition of the strings before shooting to determine when it's time to change strings.
Follow the Specs
Every Parker compound bow comes with factory specifications and measurements. For tuning, adjusting the bow to stay as close as possible to these standards will improve accuracy. The most important measurements to consider while tuning Parker bows are draw length, draw weight minimum/maximum, brace height and axle-to-axle measurement. The Parker Challenger compound bow, for example, has a recommended brace height--the distance from the handle to the bowstring--of 6.25 inches and a draw length of 23 inches to 27 inches.
Changing Draw Length
Tuning Parker compound bows for the proper draw length is crucial for shooting comfort and accuracy. Adjusting the draw length on Parker compound bows requires changing the draw module at the end of the limbs. Consult the owner's manual of the bow and adjust the draw module to the appropriate location for the desired draw length. As a general rule, a long draw length will increase the draw weight, and a short draw length will reduce the poundage.
Shoot Through Paper
One of the final tuning steps is to determine the nocking point and shoot through a paper tuning machine. A paper tuning machine is designed to show arrow flight as it leaves the bow to ensure "true" arrow flight. Install the initial nocking point about 3/16 inch to 1/2 inch above the 90-degree point of the arrow and bow string. Look at the tear in the paper and notice where the tail--or the nock end of the arrow--goes through the paper in relationship to the tip. Move the nocking point up or down according to the tear. If the tail is higher than the tip, move the nocking point down. If the tail is lower than the tip, move the nocking point up.
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