Checking the pump capacity

Fig 1: Identifying Pump Capacity

Courtesy of VOLVO CARS OF NORTH AMERICA.

Close the cock for a maximum of 5 seconds. If the pump is fault free, the manometer pressure increases to correct value:

Pump A = 10.0-11.0 MPa

Pump B = 11.0-12.0 MPa

The pump must be replaced if the pressure is outside the above values

Switch off the engine.