Patent ID: 8075241

Claim:
A method of operating a working machine of the kind including a body, a ground engaging structure including first and second pairs of wheels, the wheels of each pair being provided at opposite sides of the machine, the body mounting a first working arm which is pivotable about a first generally horizontal axis and carrying, in use, a first working implement, the body also carrying a superstructure which is rotatable relative to the body about a second generally upright axis, the superstructure providing first and second mounts, the first mount mounting a cab to be rotated relative to the superstructure about a third generally upright axis and the second mount mounting a second working arm to be pivoted up and down about a third generally horizontal axis and to be rotated about a fourth generally upright axis, the second working arm including a mounting structure for releasably carrying at an outermost end thereof, a second working implement, the method including providing on the machine a working implement holding device secured to one side of the body between the wheels of the first and second pairs on the one side, rotating the superstructure relative to the body about the second generally upright axis, rotating the cab relative to the superstructure about the third generally upright axis, and manipulating the second working arm about the third generally horizontal axis and the fourth generally upright axis to bring the second working implement carried by the second working arm into holding engagement with the holding device whereby the holding device holds the second working implement, releasing the second working implement from the mounting structure, and manipulating the second working arm to move the mounting structure away from the holding device.