Receiver hitch won't latch. Help!

Curious...what WD Hitch system are you using?

One places a ton of force on the latch assembly and if you have that
one...could be a worn/busted latch assembly

Here is a link to a thread on another latch issue and pictures of the
most common latches to maybe help you solve your issue

Hitch binding up trouble

BenK wrote:
Maybe a visual of how a coupler and latch works...

Here is an old thread with diagrams showing how a coupler works...

Boiled down...a coupler has a dome with a 'return' on the leading edge's bottom
edge

That leading lower edge 'holds' the ball inside the coupler and the latch holds
the ball forward...in side of the dome with the lower edge (below the
equator of the hemisphere) so the opening at that point is SMALLER
than the diameter of the ball...

To have the ball come out...the latch must be loosened to allow the ball to move
backwards

If it does not come out, it is either still stuck via suction and/or it is still
in the front of the dome...that the latch is not moving backwards far
enough (worn or improperly adjusted latch assembly)

To allow the ball to move back out of that captive dome section, the
ball has a flat spot milled on top. So it will clear the top portion
of the dome that comes 'down' to help capture the ball

Why backing up does the trick on most situations...it moves the ball out from the
front of the coupler dome...




rv.net/forum WDH Hitch Ball Angle Issue


Most common coupler latches



Another type of coupler latch



{edit}...Note that if you have an Anderson WD Hitch system...it wears
out the coupler latch assembly. That Anderson warns a certain type
of latch assembly for use with their WD Hitch system