New Andersen WD hitch

BarneyS wrote:

Atlee wrote:
Snip...
One thing I have thought about doing is marking where the set screws go, and then drilling a dimple in the A-frame for the set screw to settle into.

Wouldn't this work?

That is what I would do. In fact, I would probably put a small hole all the way through.
Barney

To be devils advocate...

This is where simulation is needed, as this is a stress raiser of the
highest order.

ALL of the bushing/spring forces are concentrated on this small gouged
section of the tongue

There is some level of rocking of the brackets till they bottom out
on the tongue during that tilt. The brackets pivot on these screw points
till the rest of the bracket bottoms

There has been one reported instance of these brackets sliding. Both
that the screw points were NOT fully seated as per the manual and that
the brackets were too large for that trailer tongue

The reason simulation is needed for 'this' is that there are dynamic
forces on that point

Assume that the designers have a level of contact pressure to hold that
set screw in place, preventing it from backing out

If a hole is drilled...question is will it hold it from backing out
over time?

If not fully torqued (3 full turns), will have enough holding force
to keep it from backing out over time?

If not fully torqued (3 full turns), will it then have the metal of
the tongue 'work' itself into a oval, to then finally work itself both
out and/or slide down towards the ball?

Some of the attributes needed to simulate: the alloy/temper of the
bracket. The tolerance (how tight to the tongue), therefore how much
will the bracket/tongue/set-screw move during the trip(s)? etc, etc, etc