![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[多选题]
液压支架立柱、千斤顶的检修质量标准规定:立柱和千斤顶活塞杆的直线度分别不得大于()
A.1/1000
B.1/2000
C.2/1000
D.3/2000
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
AC
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.1/1000
B.1/2000
C.2/1000
D.3/2000
AC
A.对支架架体,包括顶梁、底座、掩护梁、前梁、伸缩梁、四连杆、侧护板、推移杆等全面分解、清洗、检查、修理或更换
B.逐个检查高压管接头、接头座,更换全部密封
C.更换损伤立柱与千斤顶
D.重新调定安全阀
E.给支架除锈、喷漆