DISASSEMBLY AND ASSEMBLY HYDRAULIC PUMP
EX20 Series 40-31
Torque converter
2
HYDRAULIC PUMP
1. Hydraulic pump and power steering pump
The hydraulic pump and power steering pump are
connected as a unit, and are driven by the torque
converter PTO system.
2. Torque converter charge pump
The torque converter charge pump is driven by the
torque converter PTO system.
Item Radius
Work
equipment
Steering
Name of pump – SAR–90 SAR–40
Relief pressure
MPa
{kgf/cm
2
}
21.58
{220}
12.75
{130}
Discharge cc/rev 90.7 40.0
Rated speed rpm 2,270 2,270
Item Unit
Name of pump FAL3–045
Relief pressure MPa {kgf/cm
2
}1.5 {14.7}
Discharge cc/rev 43.7
Rated speed rpm 2,200
November 2004