The forks are designed inverted. Everything comes out the top. Check the free e-copy of the service manual for easiest steps based on what needs to be repaired.
@Volvoec290 ... The removal of the socket head cap screw, and crush washer, in the cast lower fork leg allows separation of the internal cartridge assembly and subsequent seal replacement. The oil is filled from the top side. The fork leg is threaded and grub screwed to the fork tube.
Here's a couple of early links regarding the front inverted forks.
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