512
Oil Circuit
General Description
The oil pump fitted to this model has three pumping rotors. Two of the rotors are for the
scavenge system and the third is for the pressure system. The oil pressure relief valve is
located inside the oil pump. If the oil pressure valve requires replacement, the oil pump
and oil pressure valve assembly is to be replaced.
The oil pressure relief valve is set to open at 5.2 bar (75 lb/in 2) and when open, returns
the oil to the inlet of the oil pump.
1. Scavenge rotors
2. Pressure rotor
3. Pressure relief valve
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