| Fault phenomenon | 原因分析 | 排除方法 | 
| 1. Motor draai nie | ①Hydraulic pump not started or direction incorrect | ①开启液压泵或改正泵的转向 | 
| ②油箱储油量不足 | ②Add to the specified oil amount | |
| ③换向阀处于中位 | ③切换换向阀 | |
| ④Umphumulo we-valve we-pressure ungaphansi kakhulu | ④Systemdruk op die voorgeskrewe waarde ingestel | |
| ⑤Motor output torque insufficient | ⑤Change motor | |
| 2.运转时噪声过大 | ①Air in the hydraulic system | ①找出进气原因并排除油中空气 | 
| ②吸空 | ②增加供油量 | |
| ③Mada ndhlu yokuphakela njll.  | ③Genghuan zhouling ji qita sunhuai lingjian | |
| 3.内、外泄漏过大 | ①密封件损坏造成内外泄露 | ①Replace sealing parts | 
| ②Mada lingqian you qikong, shayan, liehen deng | ②更换零件 | |
| ③螺栓松动 | ③Faka iibhola | |
| 4.异常发热 | ①Hydraulic oil temperature is too high | ①增加冷却能力 | 
| ②Motor effisiensi menurun | ②更换易损件 | |
| ③非正常磨损 | ③更换马达 |