Aiming Headlights

1olbull said:

Working a case where this age old issue came up. I needed to prepare a little diagram for explanation, so I reckoned I'd share it in case someone found it useful.

Click to expand...

warp9.9 said:

Is there a tolerance on that bull? just curious 1.5 degrees down at 20 feet is 5.237' or 6.2846" or 6&9/32" a skosh bit over 6&1/4" anyway I was wondering and if so is it in one direction only on each axis like like down in vertical and two the right in horizontal? Thats some good information to know. Thanks I'll need to check mine.

Click to expand...

1olbull said:

Of course there's a tolerance, Mr. Machinist!
After all, this is government controlled; therefore, if you stay within plus or minus 10 thousandths you should be OK.

Personally, I use a 1/2 degree down in 1 degree to the right because it puts the beam out further ahead. I also use high beam until I can't.
For better accuracy, I also use a NIST certified light meter to locate and set the actual brightest light ray.

Click to expand...

1olbull said:

Working a case where this age old issue came up. I needed to prepare a little diagram for explanation, so I reckoned I'd share it in case someone found it useful.

Click to expand...