In any case the oil must be changed at least once
a year, as it is degraded by oxidation.
For a room temperature other than between 0 °C - 30 °C,
follow the instructions in the following diagram, considering
that oil must have a minimum viscosity of 180 cSt.
Viscosity / Room Temperature diagram
mm
/s = cSt
2
The used oil must be poured unto a suitable container and consigned to an authorized recycling center.
Do not release used oil into the environment under any circumstances.
8
PORTS AND CONNECTIONS
The pumps are equipped with:
2 "IN" inlet ports:
G2" (versions with piston Ø 40, 45, 50)
Ø80 mm (versions with piston Ø 55, 60, 65)
Line connection to any of the two ports is indifferent for
proper pump functioning. The unused ports must be
hermetically closed.
2 "OUT" outlet ports:
G1" (versions with piston Ø 40, 45, 50)
G1 ¼" (versions with piston Ø 55, 60, 65)
1 "DRAIN" port: with G1/2" orifice obtained in the lower cover
to monitor any leakage of fluid due to wear on the pressure
seals. If there are any leaks, refer to the Repair manual.
Ambient temp. (°C)
This orifice must always be kept open (see Fig. 4 and
Fig. 4/a).
OUT
DRAIN
IN
41
OUT
IN
Fig. 4