Hi mungo,my rover has a chain (like a dog chain)from the rear of the deck and hooks up to part of the chassis directly above where it is attached to the deck,i am assuming that when you drive over a ditch or where the deck wheels dont touch the ground the chain takes up the slack so that the belts dont come off or excess pressure on the front deck mounting points.if you set the deck at its lowest height the chain should be slightly slack.if this does not make sense i will post photos of mine...ken
