Patent ID: 8919789

Claim:
A combine harvester comprising: a chassis having a front end and a rear end; a harvesting header attached to said front end of the chassis; processing mechanism mounted on the chassis for processing crop materials harvested by said header; a pair of driven front wheels supporting said front end of the chassis behind the header; and a suspension axle assembly supporting said rear end of the chassis and including: a transverse axle vertically swingably attached to said chassis; a pair of ground wheels rotatably mounted at opposite ends of said axle; and suspension apparatus between said axle and said rear end of the chassis for transferring the load of the rear end of the chassis to said axle and the ground wheels, wherein said suspension apparatus includes a pair of inflatable devices at spaced locations along the length of said axle, said devices being inflatable independently of one another for tilting said axle relative to said chassis.