在重慶升降機加工裝配或者維修等過程中不可避免的殘留污染物，因而必須采取有效的凈化措施，機件清洗凈化應從加工制造的最初工序開始，每一工藝過程乎都需采取相應的凈化措施，最后裝配工序完成后的凈化主要是清除裝配時帶入的污染物。

1、貨梯系統組裝完畢后需要進行全面的清洗以清除在系統組裝過程中帶入的污染物，組裝后的系統采用流通法進行清洗即通過液流對機件內部殘留污染物的沖刷作用，使污染物從附著表面并釋放出來。
Wenzhou freight elevator after the system needs to be fully assembled cleaning system to remove contaminants into the assembly process, the assembled system cleaning that is scour the flow of parts through the internal circulation method using residual contaminants that pollute and was released from the attachment surface.

2、先將貨梯系統較復雜精密的機件進行斷開用旁路連通回路，然后根據具體情況可以利用系統的油箱和液壓泵，接入高精度大納污容量過濾器或外界專用的清洗裝置，對系統進行清洗對于復雜的系統可分為幾部分或幾個回路分別清洗。
First Wenzhou Huoti relatively sophisticated mechanical systems were disconnected in communication with the bypass circuit, then the system can be used depending on the circumstances of the fuel tank and pump, the access precision dirt holding capacity of the filter or an external special cleaning means, cleaning system for complex systems can be divided into several parts or several circuits were cleaned.

3、貨梯清洗一般采用與系統相適應的粘度較低的油液，并盡可能提高液流速度，以便使系統回路內的液流保持充分的狀態清洗到一定程度后，將斷開的機件接入系統繼續進行循環清洗直到系統油液污染度達到規定的要求為止。
Wenzhou freight elevator after cleaning generally use a lower viscosity oil compatible with the system, and to maximize the flow rate so that the flow loop system is kept clean enough state to a certain extent, the disconnected parts connected cleaning cycle continues into the system until the system reaches a predetermined oil pollution requirement.