Protective Devices Adopted; Individual Means Of Protection To Be Used; Malfunction, Failure, Fault - battioni Pagani FAN 420 Manual De Instrucciones De Uso Y Mantenimiento

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9.6

PROTECTIVE DEVICES ADOPTED

The rotary blades vacuum pump, when being installed on a machine, must be equipped with a protective device to
isolate the moving parts and prevent access to them by the operators.
It is necessary to protect the Rotary blades vacuum pump to avoid the remote danger of material projection in case
of heavy breakage.
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9.7

INDIVIDUAL MEANS OF PROTECTION TO BE USED

When operating the Rotary blades vacuum pump, it is necessary to use the individual means of protection
prescribed by the Manufacturer of the machine on which the Rotary blades vacuum pump has been installed.
DETECTED FAULT
Little vacuum or pressure
Overheating
Beating against external surface
Liquid comes out of the
discharge elbow
Smoke comes out of discharge
elbow
page 40

10 - MALFUNCTION, FAILURE, FAULT

CAUSE
Blades are worn
Some blades jammed in rotor
Air infiltration or leakage from
system
Undulated cylinder
Reversing gear badly positioned
Flange assembly too tight
Movement of sliding flange
Check operation of the
vacuum seal disc
Excessive pressure
Excessive rate of revs
Excessive operating time
Blades too long
Lack of lubrication
Clogged intake filter cartridge
Clogged Ballast filter
Rate of revs too low
Excessive/short and/or not suitable
lubrication oil
Malfunctioning of valves
Excessive lubrication
Setting the pace since 1953
SOLUTION
Replace blades
Disassemble the rotary blades vacuum pump, clean
and wash the rotor, the blades and the body.
Eliminate infiltrations
Smooth or replace the body
Remove reversing gear and position it correctly
Add a gasket to the back flange
Replace the pins supplied between body and flange
for alignment
Unlocking
Reduce pressure
Reduce rate of revs
Reduce operating time
Trim blades to correct size
Check oil level in tank, oil pump operation, setting
of oil tap
Wash and blow the filter cartridge
Wash and blow the filter
Increase rate of revs
Clean the rotary blades pump and replace the oil
Check valves
Adjust lubrication