A standard "owner’s manual" does not exist for this unit. Instead, the documentation falls into and Calibration Data Sheets .
This is a specific request, as the is not a consumer home appliance (like a dishwasher or fridge). It is an industrial diesel fuel injection pump (part of the VE/VP series) commonly found on older Volkswagen, Audi, Seat, Skoda, Ford, and various industrial/commercial vehicle engines from the 1990s and early 2000s. bosch pes4a manual