
Mitch, and everyone else.
The hitch for a mono wheel trailer is a bit of a stumbling block to get over because , Australian Design Rules and Standards have to be conformed with, And there is nothing to choose from on the Australian market.
To get over this I am using a totally overbuilt devise called a Polyblock 4 WD. coupling and hitch adapter which is rated at 2000Kg. loading.
It is big , badly made and very ugly, But it is an approved item.
This is not what is needed for this application, it is not very well made,( I could make a better one myself) Its poor tolerances allow an excessive amount of sideways movement of the trailer (tilting) in the rotational axes even though the coupling has been pinned to stop it moving. There is too much slop through the poly block pins. But initially I am forced to use a component that has the Australian Design Standard Approval, even though it is not suited to this application.
The only other recourse that is available to a build like this, is to design , and make , a hitch and coupling to conform, and then get it certified and pay a bill of somewhere around $3- 4000 .00
That is not feasible.
My research has not found me an alternative to what I have done at this time.
For those that are interested I am working on a little story about this build , along the same lines as I put up for The Expanding Teardrop Trailer Build.
It will probably be ready for posting in another couple of weeks or so.
Untill then ,Keep the sunny side up.
Cheers to all,
winston66 Northampton
