Work machine with easily serviceable exhaust aftertreatment device

A work machine comprising:

• a chassis;
• an air-breathing, fuel-consuming internal combustion (IC) engine providing a rotary output for said chassis and producing products of combustion through an exhaust pipe, said engine being supported in said chassis;
• a frame supported by said chassis and positioned adjacent to and over a top portion of said IC engine;
• an exhaust aftertreatment device connectable to said exhaust pipe and positioned over the top portion of said IC engine;
• a carriage connected to said frame and supporting said exhaust aftertreatment device;
• and
• an adjustable mounting between said frame and said chassis, wherein said adjustable mounting comprises a horizontal plate fixed to said chassis and an intermediate plate overlying said fixed plate and adjustably connected to said first plate in a fore and aft and side-to-side adjustment relative to said engine, a frame cross plate of said frame being connectable to said intermediate plate.