What Maintenance Is Required For Sinew-Backed Bows?

Inspecting the Sinew

When inspecting the sinew backing, look for signs of wear or damage such as cracks, frays, or loose fibers. Check the sinew for any gaps or uneven areas that may compromise the bow’s performance. Use a magnifying glass or a hand lens to examine the sinew closely. To inspect the bow’s tension, draw the bowstring back to its maximum tension and check for any excessive movement or give in the limbs. You can also use a bow scale to measure the bow’s poundage and compare it to its original specifications.

Re-gluing or Replacing the Sinew

If you find any signs of wear or damage on the sinew backing, you may need to re-glue or replace it. To re-glue the sinew, use a high-quality hide glue and apply it to the damaged area. Clamp the bow down and let it dry for several hours before checking the sinew again. If the damage is extensive or the sinew is beyond repair, you may need to replace the sinew backing entirely. This involves carefully removing the old sinew, cleaning the area, and applying a new layer of sinew glue and backing material.

Adjusting the Bow’s Tension

To adjust the bow’s tension, you will need to adjust the bowstring’s length or the sinew backing’s tension. You can do this by adding or removing fibers from the sinew backing or by adjusting the bowstring’s length. Start by making small adjustments and checking the bow’s performance after each change. Use a bow scale to measure the bow’s poundage and make adjustments accordingly. Remember to always work in a controlled environment and use proper safety precautions when making adjustments to the bow’s tension.