details of crawler excavator such as the controls the cloches the bucket the hydraulic pumps the tracks

action activity backhoe bucket building bulldozer cloches construction controls crawler details dig digger digging dirt earth earthmover equipment excavation excavator field gravel ground heavy hydraulic industrial industry loader loading machine machinery metal mine mining mover outdoors power pumps quarry sand scoop shovel site sky soil such technology tracks tractor transport transportation unloading vehicle work working yellow