Fault phenomenon | Cause analysis | Exclusion method |
1. 泵内没有油或压力 | (1) 主动机和泵的旋转方向不一致 | (1) 修正原动机的旋转方向 |
(2) Pump drive key off | (2) 重新安装驱动密钥 |
|
(3) 油入口和出口反向连接 | (3) 根据说明书选择正确的连接方式 |
|
(4) 油箱中的油位过低,吸入管的液位暴露 | (4) 在最低油位线以上补充油液 |
|
(5) 速度过低且吸力不足 | (5) 提高泵的最低速度以上的速度 |
|
(6) 油粘度过高或过低 | (6) 选择推荐粘度的工作油 |
|
(7) 吸油管或过滤装置的堵塞导致油吸收不良 | (7) 根据泵和说明选择正确的过滤器 |
|
(8) Poor oil absorption due to high suction pipe or filtration accuracy | (8) 根据样本和说明选择正确的过滤器 |
|
(9) 吸入管道的空气泄漏 | (9) 检查管道的接头,密封并固定它们 |
|
2. 流量不足以达到额定值 | (1) 速度太低,无法达到额定速度 | (1) 根据产品样本或说明书中规定的额定速度选择原动机速度 |
(2) 系统中存在泄漏 | (2) 检查系统并修复露点 |
|
(3) 因为泵工作时间长且振动,泵盖的连接螺丝松动 | (3) Properly tighten the screws |
|
(4) 与表1相同。 (9) | (4) 与表1相同。 (9) |
|
(5) Insufficient oil absorption: ① Same as table 1. (9) ② The inlet filter is blocked or the flow rate is too small ③ The suction pipe is blocked or the diameter is small ④Inappropriate medium viscosity | (5)Solutions for insufficient oil absorption: ①Same as Table 1. (9) ② Clean the filter or choose a filter with a flow rate that is more than twice the pump flow rate. ③ Clean the pipeline and choose a suction pipe with a diameter not less than the pump inlet diameter. ④Select the recommended viscosity working medium |
|
3. The pressure won't rise. | (1)The pump cannot draw oil or the flow is insufficient | (1)Same as Table 1. |
(2) The setting pressure of the overflow valve in the hydraulic system is too low or has malfunctioned. | (2) Reset the overflow valve pressure or repair the overflow valve |
|
(3)同本表2.(2) | (3)同本表2.(2) |
|
(4)同本表2.(3) | (4)同本表2.(3) |
|
(5)Same as Table 1.(9) | (5)同本表1.(9) |
|
(6)同本表2.(5) | (6)同本表2.(5) |