This video demonstrates how to install the LCN 4040XP door closer, and perform adjustments. Skip to: 0:42 - Tools You'll Need 1:57 - Door & Frame Prep 5:52 - Adjusting Spring Power 6:36 - Mounting the Closer 7:58 - Attaching the Arm 8:24 - Adjusting the Closer Video from Relcross