sorry for the late reply. work day..
yes , i see you are replacing the suction line from the expansion valve to the compressor and the hp line from the compressor to condenser.
i have looked in all my manuals and there is no directions for replacing lines, only major components like the compressor or condenser.
I dont think i have ever seen directions for replacing lines.
but.. line replacments are generally the same .
you will have to evacuate the system, remove the retaining bolts or nuts, ad wiggle the line free front where it attaches.
the hardest part is manuvering and feeding the lines into their original position for fastening. the lines should come with new seals or orings. if not than these must be replaced.
once lines have been replaced, the ac system should be put into a vacuum for 30 mins to remove any oxygen and moisture.
if you are using the cans to charge the system, than purge a bit of gas out of the high pressure while filling through the low side.
the liquid cracks should be visible whether the system is charged or not. if you cant see any cracks, i wouldnt be concerned.
i dont replace lines unless they are visibly cracked or visible leakage around the couplers and crimps. A leak will show ac oil around the cennection
the suction hose calls for about 1.9 hours so you will have to remove anything that is attached or in its way.
i wish i had more info and some diagrams for you but line replacement is more of a trial and error replacment