<STRONG>Smooth operation and maximum power </STRONG><br><P>The 3503 track excavator offers one of the smoothest and most powerful hydraulic systems available on the market today in this class. Powered by the economical Yanmar 4-cylinder diesel engine, the 3503 track excavator offers rubber track, dozer blade and boom-mounted working light all standard. The X-shaped undercarriage provides for greater lifting power and stability. Hydraulic system features summation regulation, dipperstick-mounted auxiliary hydraulic connection for two directions of motion and a control pattern change system.</P>