Including engine, torque converter, gearbox, front and rear drive axles, frame and chassis.
1. Engine
2. Gearbox
3. Working hydraulic oil circuit, hydraulic oil tank, working pump, multi-way valve, lifting cylinder and tipping cylinder
4. Traveling oil circuit: transmission oil pan oil, traveling pump, one way to torque converter, one way to gear valve and transmission clutch
5. Drive: transmission shaft, main differential, wheel reducer
6. Steering oil circuit: oil tank, steering pump, steady flow valve (or priority valve), steering gear and steering cylinder
7. The gearbox has two types: integrated (planetary) and split (fixed shaft)