24
The applications for the pump must always be executed according to the general rules of mechanics.
The Manufacturer’s Service Centre is at the disposal of installers for any further information.
The pump may rotate either clockwise or anticlockwise.
10.2 SETTING THE PRESSURE LIMITING/ADJUSTMENT VALVE
fi«
CAUTION
•
Operating pressure must never exceed the maximum level envisaged for the pump (also refer to
the “
FEATURES AND TECHNICAL SPECIFICATIONS
” section.
Turn the hexagonal nut on the valve (3) clockwise to increase pressure; anticlockwise to decrease
pressure (refer to figure 1).
10.3 TORQUE WRENCH SETTINGS
The torque wrench settings to be used are illustrated in the following table (refer to fig. 1)
DESCRIZIONE
VRX
Torque wrench
Nm. lb. ft.
GXD
Torque wrench
Nm. lb. ft.
3
Hexagonal coupling pressure limiting adjustment valve
22 (16,2)
32 (23,6)
9
Detergent suction coupling
7 (5,2)
11
Delivery valve cap (brass head)
25 (18,4)
45 (33,2)
12
Hexagonal coupling thermale valve
7 (5,2)
14
Pump head screw
22 (16,2)
25 (18,4)
15
Screw for engine flange support
7 (5,2)
16
Crankase screw
25 (18,4)
