A construction for a crane carbody and lower axle construction which permits use of either fixed or adjustable length axles with common tread members and carbodies, each of the tread members having sockets and a pair of adjustable length axles, each axle having a pair of side by side hydraulic rams, defining an offset therebetween connected to axle beams engageable with and secured to said sockets. A pair of fixed length axles, each having beam ends which are out of alignment by an amount equal to said offset so that the fixed and adjustable length axles...
A method of initially assembling a hollow axle body, axle member and hydraulic ram to form an adjustable length axle comprising the steps of: securing a guide means and a cross bar inside said axle member; inserting the rod end of said ram while in a contracted condition into said axle member over the cross bar; sliding the rod end into position in said guide means; pinning said rod end to said axle member; inserting the ram and the axle member into said axle body; extending said ram to extend beyond said axle body; pinning said ram body to a base plate;...
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