Yanmar 4LHA-HTP Operation Manual page 509

Chapter 5 Lubrication System
2. Lube Oil Pump
2-2 Specifications of lube oil pump
Engine speed
Gear ratio
(crank gear/pump gear)
Pump speed at 3300 rpm (Engine)
Discharge volume
Discharge pressure
Safety valve openning pressure
Oil pressure safety valve
4LHA-HTE
3400 rpm
24/22=1.02
3468 rpm
2600//H
0.39(4) MPa(kgf/cm) 0.39(4) MPa(kgf/cm)
1.18(12) MPa(kgf/cm) 1.18(12) MPa(kgf/cm')
5-4
Gear
Side cover
4LHA-DTE
3400 rpm
24/22=1.02
24/27=0.89
3468/3026 rpm
Total 3700 €IH
4LHA Series
Outer rotor
Inner rotor
Rotor shaft
Pump body ,