Hydraulic cylinder
2023-10-10Hydraulic pump, manual failure and troubleshooting
A manual hydraulic pump is a pump driven by manpower, so it is called a manual hydraulic pump. The manual hydraulic pumps currently on the market are generally divided into single-stage manual hydraulic pumps and two-stage manual hydraulic pumps.
The single-stage manual hydraulic pump generally has a working pressure lower than 70MPa,
Two-stage manual hydraulic pumps generally work pressure higher than 70MPa
What we are talking about today is the common faults and troubleshooting of the two-stage manual hydraulic pump
Fault description | Method of exclusion |
Pressured but no oil discharge | 1.Check whether the oil circuit outside the pump is unblocked 2.Check whether the blocked steel ball in the oil pressure output port of the pump is taken out 3.Depot Repair |
No pressure and no oil discharge | 1.Check whether the fuel tank has enough fuel. 2.Whether the fuel tank cap is loosened, please loosen it if it is not loosened 3.Depot Repair |
Not holding pressure | 1.Check the joints, connected hydraulic tools and oil circuit for oil leakage 2.Whether the pressure relief valve is closed, if it is not closed, please close it 3.Gently tap the pressure relief valve with a small hammer (in the closed state) |
Warn!
Rust-preventing hydraulic oil with a viscosity of 7-10 cSt at 50° C.