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Sealing performance of a packing is determined by the method of assembling a cylinder. Please carefully check the following points.
1. Make sure to flush clean the internal face of the cylinder and the interior of the pipes.
2. Apply hydraulic oil ( the same oil used in the machine ) to the packing, gland, rod surface and internal face of the cylinder, then assemble the cylinder.
3. Put a protective cover over the lip of the packing so that is does not directly contact the thread and steps.
4. When the lip of the packing passes through hydraulic pressure port as in Figure D-A2, lightly push the lip with a spatula. This is to prevent damage to the lip of the package by the chamfer of the port. Chamfer as shown in Figure D-A3 when drilling a hole directly on the cylinder for a hydraulic port.