The common problems and solutions of clamping in use are as follows:

The clamp is not timely
The jaws may be damaged and need to be replaced. It can also coil the electrical tape for 2-3 weeks or 0.2mm copper sheet at the pipe clamping position, and then carry out the filling card.
The pipe and fittings are loose after clamping
It may be that the 0 ring has fallen off, and the pipe that is loose in the socket connection needs to be cut off with a pipe cutter or a polishing machine, and the new pipe is used for clamping again. It may also be that the pipe fittings are inserted into the pipe skewed, and the Angle of view between the pipe fittings and the pipe is too large when the clamping is required, the pipe cutter or the polishing machine is used to cut the pipe that is loosely connected by the socket, and the clamping is carried out again with the new pipe.
The hydraulic cylinder does not return, the clamp is in the pipe position, and it is not retrieved with the hydraulic cylinder
It may be that there is debris in the pump body, blocking the oil return, and it is necessary to clean the pump body and remove and change the gear oil. It may also be that the hydraulic cylinder skeleton seal gap is very small, and the hydraulic cylinder or skeleton seal needs to be removed.
Installation problem
For example, if the hexagonal gauge card does not go in, the pressure should be appropriately increased and the pipe trapped until the hexagonal gauge can be successfully stuck in the test. Before installation, adjust the pressure of the electric hydraulic pump, open the plastic cap of the pressure regulator, unscrew the Ø8mm hex nut, and increase the pressure in the clockwise direction with a flat-head screwdriver, and reduce the pressure in the counterclockwise direction until the required working pressure is adjusted.
Use of environmental issues
If there are cement, oil, white ash, putty, sand rust and other impurities on the surface of the jammed pipe fittings, they should be cleaned up in time. Some protective measures are carried out on the jammed pipe fittings in harsh environments, such as installing protective sleeves on the surface of the pipe fittings.
Material problem
Pay attention to avoid stainless steel quick fitting joints contaminated with oil. If the fitting does not successfully place the pipe, check to see if the raw edges of the pipe fittings have been thoroughly cleaned. Especially the rough edges of the inner and outer walls.
Operational problem
Press and hold the clamping tool until the pressure is relieved. Insufficient clamping pressure is the main cause of leakage and degradation of joint performance.
The above content is for reference only, it is recommended to consult a professional for more specific and accurate information.