Water ballast filler for tractor tyre - has twin bore plastics pipe inserted through tyre valve with amount of ballast controlled by insertion depth

摘要

The water ballast control system for the tractor wheel has a dual bore semi rigid plastic pipe which is inserted through the tyre valve and through which the ballast is introduced, via a water hose. The amount of ballast can be controlled by the depth of insertion of the pipe, with one of the bores acting as an overflow. To vent the ballast the wheel is set with the valve near the ground and the dual pipe is used to introduce compressed air down one bore and to vent water up the other bore.