Recommended lubricants
Viscosity Type ENI ESSO SHELL TOTAL MOBIL BP
ISO
VG 220
EP mineral oil
BLASIA
220
SPARTAN EP
220
OMALA OIL
220
CARTER EP
220
MOBILGEAR
630
ENERGOL GR
XP 220
Use SAE 80W-90 mineral oil as an alternative to the lubricants written above.
Dispose of exhausted oil as provided by current specification.
When changing the oil, also replace the outlet plug washer.
Before starting any extraordinary maintenance operation, be sure the pump stands still and follow
the safety prescriptions as described in paragraph “Safety and accidents prevention”.
For pumps equipped with handle for manual operation
or hydraulic actuator.
Adjust the screws to avoid the valve blocking in its seat.
Do not exceed with the adjustment: possible
vacuum loss.
For pumps equipped with changeover valve
with hydraulic actuator: see the integrated part at the
end of these instructions.
9. EXTRAORDINARY MAINTENANCE
ADJUSTING THE 4-WAY VALVE
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