here are scans of relevant S/M's for above conversions. Sorry about clarity of 2nd scan as it is a fiche copy and to date I haven't been able to trace a hard copy of same --do not know the date-- this from my book of useless info!!! Also Special Instruction is a fiche copy for D7, method remains the same, but part No's change for other machines.
Hope this helps.
PS--- have scaned at 400dpi to help get better copy.
Will add SI when I have deleted some other posts.
PSS HAVE ADDED SCAN OF HARD COPY SERV. MAG OCT 31 1962 for D6-up
The Serv Mag for D4, 933 etc is dec 20 1963