Hayman Reese Weight Distribution systems are not specifically designed for use with the Hitchmaster® off-road couplings, as the extra articulation that the off-road coupling provides can sometimes allow contact between the HR WDH system and coupling which may possibly result in damage to either component. Vehicle Components has designed a range of adaptors to suit the various HR WDH systems available. These adaptors reposition the towing point which allows a DO35 to articulate without any chance of contact. Hayman Reese is the only brand of WDH that these adaptors have been tested and approved for use with.
Extend your STANDARD DESIGN Hayman Reese tow clearance with this Weight Distribution Adapter Kit.
This adaptor kit is only compatible with the "Standard" series of Hayman Reese weight distribution systems. It is not compatible with the "Classic" series of Hayman Reese weight distribution systems. The Hayman Reese Standard WDH series features a cast weight distribution head with round style spring bars, well suited to 150mm drawbar sections. Use adaptor kit (Part No. 18D-HM-WDH3). The kit includes SA5 plated extension bracket, required fasteners and spacer. The Standard WDH can also be used with the raised height DO35 towpin (Part No. 18D-DO35-TP-WX) where there is sufficient clearance between the WDH drop arm and towpin.
In all cases installers should check that the coupling movement is not restricted in any way. Also check for obstruction of the WDH against the trailer drawbar at all angles as collision may occur during reversing which can damage the coupling. It is also worth noting that the application of a WDH may impose additional loads on the coupling. The DO35 is rated to a max vertical load of 350kg.
Installers should ensure that they are familiar with the installation, maintenance and safety requirements that accompanies each coupling.