Vacuum line
• Open all valves of the vacuum-pressure system.
• Open all gate valves and remove any possible obstacle from the line.
PRECAUTIONS WHEN STARTING THE SYSTEM
Check oil levels in gearbox and side mounted tank.
Check that all protection devices are correctly installed.
Check that there are no obstacles in the vacuum line.
Check rotation direction: open all system valves and start running slowly.
Do not rotate in the wrong direction: this may damage the vacuum pump. Follow the arrow indicated
on the front flange.
Check which position of the four-way integrated valve lever allows vacuum or pressure functioning.
Close the valve and increase vacuum rate (or operating pressure).
Check that the lubricating pump works properly. Oil must regularly drip into the oilers. Typically 40 drops/min
(at maximum speed).
Check loading and operating speed for vibrations or unusual noises.
This vacuum pump is designed to work at maximum speed, but for longer operating we recommend
the pump be run at working speed (see par. “Usage limitations”). Adequately prepare the
transmission.
• Do not make the vacuum pump overheat: maximum air temperature on exhaust (or delivery) side:
150°C.
• Do not operate it without lubrication: it may cause quick wear and possible breakdown of vanes.
• Do not start running the pump under load: this may damage the drive system or the hydraulic motor.
• Check the rotation speed: it must never exceed the operating limits indicated on the identification plate
of the vacuum pump.
• Do not accidentally operate the pump in the wrong direction: it may break the vanes.
• Do not convey the exceeding delivery outlet towards the suction port, otherwise it will sack warm gas.
• Control the air flow by adjusting the rotation speed: do not use the pressure relief valve to discharge
the exceeding flow.
• Do not point the end of the pump exhaust line through the motor suction in case of truck installation.
• Internal wash-up is necessary after prolonged inactivity, after working in dusty environments or in case
of accidental suction of liquids. Such operation must be carried out only on cooled pumps.
• Disconnect the exhaust silencer, if possible.
• Start running the pump at low speed.
• Suck some water (about 1-2 litres) through the inlet port.
• Then suck oil (about 1 litre) to complete the wash-up and lubricate internal components.
In case the exhaust line cannot be disconnected, drain the liquids accumulated in the separator of
the exhaust silencer.
7. OPERATING PRECAUTIONS
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