XGMA XG4221F Bulldozer

• The steering and braking operation is changed from front-mounted to left-side operation, and the operating structure of the working device has been adjusted, the operating space is increased, and it is more in line with ergonomics.
• The cab is equipped with a front-mounted air conditioner for heating and cooling, which improves the driver’s comfort performance.
• The steering brake valve with a new structure is adopted, and the steering and braking are changed from mechanical linkage to hydraulic linkage, and a flexible shaft structure is adopted, which simplifies the operation and saves effort.
• Since the speed change pump is driven at a high position, a gear oil pump with compensation function is used to improve the reliability of the speed change oil circuit.
• The walking system adopts a balanced beam suspension method, which can operate on rugged sites.
• The layout of the whole machine is reasonable, the maintenance window is appropriately increased, and the centralized pressure measurement technology is adopted to facilitate fault inspection and elimination. The commonality of wearing parts is high, which improves the maintenance performance of the whole machine.