7. UNDERCARRIAGE 1) TRACKS X-leg type center frame is integrally welded with reinforced box-section track frames. The design includes dry tracks, lubricated rollers, idlers, sprockets, hydraulic track adjusters with shock absorbing springs and assembled track-type tractor shoes with triple grousers. 2) TYPES OF SHOES 4) SELECTION OF TRACK SHOE Suitable track shoes should be selected according to operating conditions. Method of selecting shoes Confirm the category from the list of applications in table 2 , then use table 1 to select the shoe. Wide shoes(Categories B and C) have limitations on applications.
Before using wide shoes, check the precautions, then investigate and study the operating conditions to confirm if these shoes are suitable. Select the narrowest shoe possible to meet the required flotation and ground pressure. Application of wider shoes than recommendations will cause unexpected problem such as bending of shoes, crack of link, breakage of pin, loosening of shoe bolts and the other various problems.
1-19 Model Shapes Triple grouser R510LC-7 Shoe width mm(in) 600(24) 700(28) 750(30) 800(32) Operating weight kg(lb) 50000(110230) 50540(111420) 50810(112020) 51020(112610) Ground pressure kgf/cm2(psi) 0.87(12.37) 0.75(10.67) 0.71(10.10) 0.67( 9.53) Overall width mm(ft-in) 3480(11' 5") 3580(11' 9") 3640(11' 11") 3680(12' 1") : Standard 3)NUMBER OF ROLLERS AND SHOES ON EACH SIDE Item Quantity Carrier rollers 2EA Track rollers 9EA Track shoes 53EA