The is a 50 HP (36.8 kW) universal row-crop tractor produced from the late 1960s through the 1980s in Belgrade, Yugoslavia (modern-day Serbia). It is based on a licensed Massey Ferguson design (MF 135).
This is the crux of your query. The phrase combines German ("Seriennummer" = serial number) and the technical term "hypothe" (from hypothesis, or sometimes a legal hypothec/clause). In workshop manual contexts, especially for ex-Yugoslav machinery with mixed German-Yugoslav technical vocabulary, Radionicki Prirucnik Imt 533 77 seriennummer hypothe
If you are searching for a tractor linked to a mortgage (Hypothek) , the serial number is recorded on the vehicle title. You need that specific number to identify the tractor, not a general manual. The is a 50 HP (36
IMT tractors were produced for decades. An IMT 533 produced in 1975 might have a different injection pump, water pump design, or hydraulic lift assembly than one produced in 1985. Without the manual, you risk buying a part that looks identical but fits differently. The phrase combines German ("Seriennummer" = serial number)
– search for "hypoid gear adjustment IMT 533" or "IMT 533 zadnja osovina popravka" . If you have a legal mortgage issue on the tractor, contact the Land Registry (Katastar/Zemljišne knjige) in your country with the VIN/Chassis number.
The word is German for mortgage (Hypothek). It makes no sense in a service manual. There are two probable corrections: