Crawler telescopic mechanism and feature
The travel device of crawler crane is consist of running gear and chassis, The links has two kinds for travel device and the frame connection .One kind of is variable telescopic rail connection , another is immutable axle articulated connection.
Main factor to choose connection way
1. The gauge requires when crawler crane operates
2. The dimension and quality require when disassemble transport
The driver can interchange between travel and telescopic function by the “get off control button”.
