升降貨梯的的下降閥咋維修？

重慶升降貨梯的下降閥失靈的解決辦法如下。The solution to the failure of the down valve of the Chongqing elevator is as follows.
 
1.如果重慶升降貨梯下降閥失靈，在按下下降按鈕的情況下，檢查下降閥是否有電。若無電，設法排除；若有電，則排除下降閥本身故障，或更下降閥。下降閥應保持清潔、潤滑。If the Chongqing lift cargo ladder down valve failure, in the case of press down button, check whether there is electricity. If no electricity, try to rule out; if there is electricity, the valve itself is excluded from the failure, or more down valve. Down valve should be kept clean and lubricated.

2.下降閥封閉不嚴，檢查下降閥是否有電，如有電則排除下降閥本身故障或更換下降閥。重慶升降貨梯下降閥的滑閥必須保持清潔，且移動靈活。Drop valve closed lax, check whether the decline in electricity, such as electricity is ruled out of the fall in the valve itself or the replacement valve failure. Chongqing lifting elevator down valve spool must be kept clean, flexible and mobile.

3.重慶升降貨梯油缸內漏，更換油缸密封件。Chongqing elevator goods ladder cylinder leakage, replace the cylinder seal.

4.重慶升降貨梯下降速度控制閥失調，調整下降速度控制閥，如調節無效更換新閥。Chongqing elevator down speed control valve imbalance, adjust the decline rate control valve, such as the adjustment of the new valve replacement.