Usage:
5U557: Pump rotation is counter clockwise when seen from drive end.
5U558: Pump rotation is clockwise when seen from drive end.
Type of pump: Vane
For test use SAE10W oil at 82°C (180°F)
Large Section of Pump (Drive End) (Steering)
Test at Full Load:
Output ... 225 liters/min (59.5 U.S. gpm)
at a pressure of ... 690 kPa (100 psi)
with pump at ... 2000 rpm
Output ... 208 liters/min (55 U.S. gpm)
at a pressure of ... 6900 kPa (1000 psi)
with pump at ... 2000 rpm
Test at Half Load:
Output ... 113 liters/min (30 U.S. gpm)
at a pressure of ... 690 kPa (100 psi)
with pump at ... 1000 rpm
Output ... 98 liters/min (26 U.S. gpm)
at a pressure of ... 6900 kPa (1000 psi)
with pump at ... 1000 rpm
Small Section of Pump (Cover End) (Suspension/Implements)
Test at Full Load:
Output ... 105 liters/min (28 U.S. gpm)
at a pressure of ... 690 kPa (100 psi)
with pump at ... 2000 rpm
Output ... 100 liters/min (26 U.S. gpm)
at a pressure of ... 6900 (1000 psi)
with pump at ... 2000 rpm
Test at Half Load
Output ... 54 liters/min (14 U.S. gpm)
at a pressure of ... 690 kPa (100 psi)
with pump at ... 1000 rpm
Output ... 45 liters/min (12 U.S. gpm)
at a pressure of ... 6900 kPa (1000 psi)
with pump at ... 1000 rpm