Fasten tester to equalizing reservoir.
Using manual pump, build up approx. 1 atmos (14.2 psig)
pressure in coolant system.
The coolant system has leaks if the pressure does not
decrease after approx. 1 ÷ 2 minutes.

00009001 - click to zoom
 
Fasten coolant plug and tester to connection piece.
Build up pressure by means of manual pump.
The opening pressure must correspond to the figure show
the coolant plug.

00009002 - click to zoom