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3 155 Where is the heater valve?

The excavator has the following components:

The warm air valve of Sany 55 excavator is located on the engine, and the specific position is at the joint between the engine and the warm air tank. These valves are important parts to control the heating system. By adjusting the opening of the valve, the water flow of the heating system can be controlled, so as to adjust the heating temperature. To find these valves, you need to first find the connecting water pipe between the engine and the warm air box, and then carefully observe the parts near the water pipe to find the location of the warm air valve.