2 SPEED CONTROL|AIR CONDITIONER|AUXILIARY HYDRAULICS|COUPLER, HYDRAULIC|EROPS|HEATER / DEFROSTER|HYDRAULICS, STANDARD FLOW|SELF LEVELING|BELT,SEAT,2" SUSPENSION|CONTROL,2SPD,PROP AUX,DLX WT|CONVERSION ARRANGEMENT|COUNTERWIEGHT|DOOR,CAB,GLASS|ENGINE,TIER 4 INTERIM|FAN,COOLING,DEMAND|HEATER,ENGINE COOLANT|HYD,STANDARD FLOW|MULTI-TERRAIN LOADER|QUICK COUPLER,HYD|ROPS,ENCLOSED WITH A/C 3| ...more
The two main sections of an excavator are the undercarriage and the house. The undercarriage includes the blade (if fitted), tracks, track frame, and final drives, which have a hydraulic motor and gearing providing the drive to the individual tracks. The house includes the operator cab, counterweight, engine, fuel and hydraulic oil tanks. The house attaches to the undercarriage by way of a center pin. High pressure oil is supplied to the tracks' hydraulic motors through a hydraulic swivel at the axis of the pin, allowing the machine to slew 360° unhindered.