1, disassemble the workbench first.
2. Then remove the screws.
3. Remove the screw of the heater.
4. Screw of the heater.
Finally, just remove the water pipe connecting the heater tank and take it out.
Precautions:
1. In addition to a radiator in the engine compartment, there is also a heat exchanger in the dashboard of the cab, and the antifreeze used to dissipate heat in the engine flows in the middle.