The forklift oil cylinder is leaking, and the newly replaced oil seal is no good
What is the piston seal?I hope my answer will help you
Inside leak, you check if the piston rod is injured. There is no scratch inside the cylinder. Let's see if the piston has a stomata. Maybe the piston and the piston rod link to where the sealing is not good. Check it out carefully.
The hydraulic control one-way valve in the oil road has a problem. Replace it
Check the whole hydraulic system, find the leak point, and focus on the oil cylinder. It may be a seal problem.
