# Add cooling liquid

{% hint style="danger" %} <mark style="color:red;">**Attention ！！！**</mark>

<mark style="color:red;">Recommend the -25 degreese cooling liquid,connect the 2\*backup battery before adding the liquid, make sure the pump is working,please operate in strict accordance with the specified power-on and power-off sequence. Mistakes connect and discounnect will cause the gen-er-ator to burn out.</mark>
{% endhint %}

### 1. Power the generator cooling pump

1.1 The firse step is to connect No.2(2 backup battery power sources)

![](https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FWZu5zJWDz1b4Py8X31h8%2F01-1.jpg?alt=media\&token=ee2824e6-6c7f-4044-9bed-106346eaaee0)

1.2 The second step is to connect No.3(the power supply system of the whole machine)

![](https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FlzCUuP6UfdjiawBu3vsJ%2F01-2.jpg?alt=media\&token=4ff9df1d-52dc-4583-8d0c-ef57d2bc0593)

### 2. Open the coolant injection port and pour in the coolant.

(If the liquid can't absorb by pump, please put the radiator on ground, make sure the coolant injection port is higher than generator)

![](https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FFMaMBnxNi4GmDl45KPzT%2F01-3.jpg?alt=media\&token=1a1074f2-144a-4dc3-908e-dfd04fadfdd1)

![The state after the cooling liquid filling is completed. (As shown)](https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2F9Fk9VgzVpIvzgaiyiC4t%2F01-4.jpg?alt=media\&token=dd28c1fd-f19f-4b3b-bda3-06a14e7ff845)

After filling is complete, close the cover and disconnect the power.

{% hint style="danger" %} <mark style="color:red;">**Power off precautions !!!**</mark>

&#x20;<mark style="color:red;">1. The first step is to disconnect NO.03(the power supply system of the whole machine)</mark>

&#x20;<mark style="color:red;">2. The second step is to disconnect No.02(the power supply of 2 backup batteries)</mark>

&#x20;<mark style="color:red;">3. Please operate in strict accordance with the power-off sequence, otherwise the generator will be burned! ! !</mark>
{% endhint %}

![](https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FMEQbOZeOLWf4ANsczWl4%2F01-5.jpg?alt=media\&token=fb9b17c9-0cdc-4505-95b6-66d846085fe9)