Reason 1: Honggang cutting machine is poorly assembled
(1) When the hydraulic cylinder of Honggang cutting machine is assembled, the end cap is biased, and the piston rod is not concentric with the cylinder cylinder, which makes it difficult to extend the piston rod and accelerate the wear of the seal.
(2) The parallel difference between the hydraulic cylinder of Honggang cutting machine and the guide rail surface makes the piston protrude difficult and accelerates the wear of the seal.
(3) The installation of the seal of Honggang cutting machine is wrong, such as the scratch or cut of the seal, the sealing lip is reversed, the lip is broken or the shaft chamfer is not the correct size, and the seal is wrongly installed or missing.
(4) Honggang cutting machine sealing gland is not installed
1) The gland is installed with deviation
2) Unstable force on the fastening screws
3) The fastening screw is too long, so that the gland cannot be pressed
Solution to the failure:
(1) Unpacking inspection, reassembly
(2) Unpacking, reinstalling, and replacing seals
(3) Replace and reinstall the seal
1) Reinstall
2) Reinstall and tighten the screws to evenly apply force
3) Reasonably select the length of the screw according to the depth of the screw hole
Reason 2: Quality problems of seals of Honggang cutting machine
(1) The storage period is too long, and the seals are naturally aged and fail.
(2) Poor storage, deformation or damage
Reason 3: The viscosity of oil in Honggang cutting machine is too low
(1) Wrong oil when replacing hydraulic oil
(2) Other oils are infiltrated into the oil. It is recommended to replace the suitable oil.
Reason 4: Honggang cutting machine oil temperature is too high
(1) The hydraulic cylinder inlet port resistance is too high
(2) The ambient temperature is too high
(3) The pump or cooler is faulty.
Troubleshooting:
(1) Check if the oil inlet is unblocked
(2) Take thermal insulation measures
(3) Check the cause and eliminate
Reason 5: High-frequency vibration of Honggang cutting machine
(1) The fastening screw is loose
(2) Loose pipe joints
(3) The installation position produces movement
Troubleshooting:
(1) The screws should be tightened regularly
(2) The joint should be fastened regularly
(3) The mounting screws should be tightened regularly
Reason 6: Honggang cutting machine piston rod strain
(1) Dust ring aging, failure to invade sand chips and other dirt
(2) The cooperation between the guide sleeve and the piston rod is too tight, causing overheating of the movable surface, causing the chrome layer on the surface of the piston rod to fall off and strain
Troubleshooting:
(1) Clean and replace the dust ring to repair the strain on the surface of the piston rod
(2) Check and clean, use the scraper to scrape the inner diameter of the guide sleeve to achieve the matching clearance