HF SERIES
Page 19
Serial #10127003 and Later
GENERAL PUMP
A member of the Interpump Group
10. START-UP OPERATION
10.1 Preliminary Checks
Before start-up, ensure that:
The suction line is connected and pressurized (see par. 9.4 - 9.5 - 9.6) the pump must
never run dry.
1.
The suction line ensures a hermetic seal over time.
2.
Any shut-off valves between the supply source and the pump are fully open. The outlet line is free discharge, to
permit rapid expulsion of the air present in the pump manifold and therefore facilitate fast priming.
3.
All suction and outlet fittings and connections are properly tightened.
4.
The coupling tolerances on the pump/transmission axis (half-joint misalignment, Cardan joint tilt, belt pulling, etc.)
remain within limits required by the transmission manufacturer.
5.
Oil in the pump casing is at level, verified with a dipstick (fig. 14, pos. 1) and exceptionally with a level indicator
(fig. 14, pos. 2).
Fig. 14
In case of prolonged storage of long-term inactivity, check proper functioning of the
suction and outlet valves.
10.2 Start-Up
1.
At first start-up, verify that the rotation direction and the supply pressure are correct.
2.
Start-up the pump without any load.
3.
Check that the supply pressure is correct.
4.
Check that the rotation rpm during operation does not exceed the nominal rpm of the pump.
5.
Let the pump run for a period of no less than 3 minutes, before putting it up pressure.
6.
Before each pump stop, reset pressure by means of the control valve or with any relieving devices and reduce to
a minimum rpm (activation with combustion motors).
Ref 300764 Rev. F
05-21
