Since Hilti may no longer provide direct downloads for this discontinued model, third-party specialists are the most reliable source for diagrams:
Finding an official, free PDF can be tricky for older models, but you can find technical breakdowns and spare parts lists on these platforms: hilti te 52 explosionszeichnung pdf
Hilti copyrights these diagrams. Providing the full file here would violate distribution terms. Since Hilti may no longer provide direct downloads