駐車制動簡稱手剎，手剎的使用效果會隨著使用次數的增加而下降，有時候在操作的時候覺得手剎已經拉上了，但其實手剎失效或未拉到位，由此很容易引發事故。下面來講講自上料攪拌車駐車制動的檢查方法。

The parking brake is referred to as the hand brake for short. The use effect of the hand brake will decline with the increase of the number of times of use. Sometimes it is felt that the hand brake has been pulled when operating, but in fact, the hand brake is invalid or not pulled in place, which is very easy to cause accidents. Now let's talk about the inspection method of the parking brake of the self feeding mixer truck.

攪拌車的駐車制動系統是作用在后輪上的，而因為后輪制動器的形式不同，駐車制動有兩種工作環境：在安裝鼓式制動器的后輪上，由于鼓式制動器本身就可以兼做駐車制動器，因此在駐車時剎車鼓內的蹄片和摩擦片相結合，這樣就可以產生動力；而在安裝蝶式制動器的后輪上，由于沒有剎車鼓，因此就須在剎車碟片的中心部位安裝額外的駐車鼓來是駐車制動完成制動工作。

The parking brake system of the mixer works on the rear wheels. Because the rear wheel brakes have different forms, the parking brake has two working environments: on the rear wheels with drum brakes, the drum brake itself can also act as the parking brake, so when parking, the shoe and friction plate in the brake drum are combined to generate power; On the rear wheel with butterfly brake, there is no brake drum, so an additional parking drum must be installed in the center of the brake disc to complete the parking brake.

準確的說，就是攪拌車的駐車制動系統的內部裝有棘輪和棘爪，在將手剎拉起后，棘爪就會卡在棘輪上，使手剎自動鎖緊，這也就是我們在拉緊手剎手柄的同時會聽到“咔嗒”聲響的原因。

To be exact, there are ratchets and pawls inside the parking brake system of the mixer truck. After the handbrake is pulled up, the pawl will be stuck on the ratchet, making the handbrake automatically locked. This is why we hear a "click" sound when we tighten the handbrake handle.

在手剎手柄的底部和銅纜的連接處有一個可調的補償機構，使用扳手松開鎖緊的螺帽，就可以拉伸剎車銅纜的長度，如果在檢查中，我們發現手剎的制動效果或靈敏度不理想，那就可以通過調節這個手剎操作銅纜來解決問題。

There is an adjustable compensation mechanism at the connection between the bottom of the hand brake handle and the copper cable. Use a wrench to loosen the locked nut to stretch the length of the brake copper cable. If we find that the brake effect or sensitivity of the hand brake is not ideal during the inspection, we can solve the problem by adjusting the hand brake operating copper cable.

關于制動系統的檢查:每次保養或出長途之前都要對攪拌車制動系統進行檢查，內容有：攪拌車制動液液位和油質、管路和接頭有沒有滲漏、制動片及制動盤的厚度和磨損情況、制動系統真空管路有無泄漏、制動分泵回位情況、駐車制動拉線有無磨損及回位情況等。更多相關內容就來哦我們網站http://www.www.boy7up.cn咨詢了解吧！

Check the brake system: check the brake system of the mixer truck before each maintenance or long-distance trip, including the brake fluid level and oil quality of the mixer truck, whether there is leakage in the pipelines and joints, the thickness and wear of the brake pads and brake discs, whether there is leakage in the vacuum pipeline of the brake system, the return of the brake wheel cylinder, whether there is wear and return of the parking brake cable, etc. Come to our website for more information http://www.www.boy7up.cn Ask and understand!