Preliminary Checks

m2 dm 14.00.001

Before checking or adjusting the headlight aim, do the following:

  • Check that the hood is closed and latched.

  • Check the suspension for proper functioning of the leveling mechanism. On cabs with air suspensions, make sure that the height is properly adjusted.

  • Remove any large amounts of mud or ice from the underside of the fenders.

  • Check the springs for sagging or broken leaves.

  • Check for damage to the hood and hinge assembly. Repair as necessary.

  • With the vehicle unloaded, check that the tires are inflated to the recommended air pressure.

  • Clean the headlight lenses. Use a soft cloth with mild, non-caustic soap or detergent, and water.

Note:
Parent topic: Headlight Aiming
Document Number: 0000117736
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-05-09