Recently done a maintenance job on mine…..cleaned out tank, replaced hydraulic oil, took bed off and cleaned out oil feeds, replaced spindle oil etc.
Fairly easy job, found oil grade info online, rest was common sense, so no manual required.
Having never used one, controls were easy enough to figure out without a manual.
Wheel balancing info is available on youtube amongst other places.
So unless you intend delving deeper into the works, reckon a manual is not a must.
Saying all that, a week or so after finishing the job, i found an original manual hiding in the back of the wheel balancing cabinet 