故障现象 | 原因分析 | 排除方法 |
1. 泵内没有油或压力 | (1) 主动机和泵的旋转方向不一致 | (1) 修正主动力的旋转方向 |
(2) 泵驱动钥匙关闭 | (2) 重新安装驱动密钥 |
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(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 |
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(4) 油箱中的油位过低,吸管的液位暴露 | (4) 在最低油位线以上补充油液 |
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(5) 速度过低且吸力不足 | (5) 提高泵的最低速度以上的速度 |
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(6) 油粘度过高或过低 | (6) 选择推荐粘度的工作油 |
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(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 |
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(8) 由于吸管高度或过滤精度高,油吸收差 | (8) 根据样本和说明选择正确的过滤器 |
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(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 |
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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手册中规定的额定速度选择原动机速度 |
(2) 系统中有泄漏 | (2) 检查系统并修复露点 |
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(3) 因为泵工作时间长且振动,泵盖的连接螺丝松动 | (3) 适当地拧紧螺丝 |
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(4) 与表1相同。 (9) | (4) 与表1相同。 (9) |
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(5) 油吸收不足: ① 与表1相同。 (9) ② 进水过滤器被堵塞或流量过小 ③ 吸管被堵塞或直径过小 ④Improper medium viscosity | (5)Solutions for insufficient oil absorption: ①Same as Table 1. (9) ②Clean the filter or choose a filter with a flow rate more than twice the pump flow rate. ③ Clean the pipeline and choose a suction pipe with a diameter no less than the pump inlet diameter. ④ Select the recommended viscosity working medium |
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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 relief valve pressure or repair the relief valve |
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(3)Same as Table 2.(2) | (3)Same as Table 2.(2) |
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(4)Same as Table 2.(3) | (4)Same as Table 2.(3) |
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(5)Same as Table 1.(9) | (5)Same as Table 1.(9) |
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(6)Same as Table 2.(5) | (6)Same as Table 2.(5) |