以下是扭剪扳手常見的故障及維修方法：

The following are common faults and maintenance methods for torsion shear wrenches:

1. 扭剪扳手無法扭轉(zhuǎn)：可能是扳手內(nèi)部的齒輪損壞或者潤滑不足。方法是拆開扳手，清潔和潤滑齒輪，或者更換損壞的齒輪。

1. The torque wrench cannot be twisted: it may be due to damage to the internal gears of the wrench or insufficient lubrication. The solution is to disassemble the wrench, clean and lubricate the gear, or replace the damaged gear.

2. 扭剪扳手扭力不準確：可能是扳手內(nèi)部的彈簧松弛或者損壞。方法是拆開扳手，檢查彈簧的狀態(tài)，如果松弛或者損壞，需要更換彈簧。

2. Inaccurate torque of the torque wrench: It may be due to loose or damaged springs inside the wrench. The solution is to open the wrench and check the condition of the spring. If it is loose or damaged, the spring needs to be replaced.

3. 扭剪扳手扭力過大或過小：可能是扳手內(nèi)部的調(diào)節(jié)裝置失效或者損壞。方法是拆開扳手，檢查調(diào)節(jié)裝置的狀態(tài)，如果失效或者損壞，需要更換調(diào)節(jié)裝置。

3. The torque of the shear wrench is too large or too small: it may be due to the failure or damage of the internal adjustment device of the wrench. The solution is to open the wrench and check the condition of the adjustment device. If it fails or is damaged, the adjustment device needs to be replaced.

4. 扭剪扳手手柄松動：可能是手柄內(nèi)部的螺紋松動或者損壞。方法是拆開手柄，檢查螺紋的狀態(tài)，如果松動或者損壞，需要更換螺紋。

4. Loose handle of torsion wrench: It may be due to loose or damaged threads inside the handle. The solution is to disassemble the handle and check the condition of the thread. If it is loose or damaged, the thread needs to be replaced.

5. 扭剪扳手外觀損壞：可能是扳手外殼受到撞擊或者磨損。方法是更換外殼或者進行修補。

5. Appearance damage of the torsion wrench: It may be due to impact or wear on the wrench housing. The solution is to replace the casing or repair it.