So first off remove the spring, wind the preload all the way off until the spring is slack, pop the retainers out of the bottom and slide the spring off. Before I stripped the shock I made some dot punch marks on the hose and body to ensure correct orientation of the hose on re assembly.
20190308_100208 by Paul Goat, on Flickr
As mentioned these are a sealed unit not intended to be rebuilt, I released the gas pressure by drilling a hole in the end cap. Be aware that this chamber contains pressurised gas so please proceed with caution.
20190308_100257 by Paul Goat, on Flickr
once you have released the gas pressure you can safely remove the banjo bolts from the hose ends. To disassemble the reservoir tap the end cap in untill you can see the retaining circlip and flick it out with a paick or small screw driver. you can then pull out the end cap. To remove the top cap of the reservoir you need to remove the compression adjuster, this just screws out using a spanner across the flats of the adjuster. Then push the cap into the reservoir and you can remove the retaining circlip.
20190308_114243 by Paul Goat, on Flickr
The disassembled reservoir should look like this.
20190308_115055 by Paul Goat, on Flickr