instruction manual
for use and maintenance serie MEC, STAR
11 - MAINTENANCE, INSPECTIONS AND CHECKS, REPAIRS,
When carrying out maintenance operations, inspections, checks or repairs it is advisable to wear the individual
protective devices listed in this manual.
All maintenance operations, inspections, checks and repairs must be carried out with the greatest care and with the
Rotary blades vacuum pump off and the P.T.O. disconnected.
11.1 CLEANING
11.1.1 WASHING OF THE BODY
If sewage enters the Rotary blades vacuum pump, the inside of the body must be washed immediately, by making it suck in diesel or
fuel oil through the discharge elbow with the Rotary blades vacuum pump in compression phase. After this operation make it suck
in oil. The same operation should be carried out when the Rotary blades vacuum pump has to remain inactive for a long time. In this
case, disconnect the suction and delivery tube connected to the valves and hermetically seal the manifold cover because the gasses
that form inside the tank would pass into the Rotary blades vacuum pump and cause the inside of the body to rust and this in turn
could cause the blades to break when the system is re-started.
In order to avoid rust formation, do not use water.
If the body is washed after it is disassembled, it is advisable to carry out a preliminary wash with detergents (e.g. thinners) before
carrying out the above operation.
11.1.2 WASHING OF OIL TANK
Wash the oil tank at least once a year. Remove the manifold, and then wash it using solvents.
11.1.3 WASHING AND CLEANING OF VAL VES
Wash and clean the valves at least once a month. Remove the valves, then wash them with water or, if necessary, non-corrosive
detergents.
11.2 CHECKING OF VAL VES
Regularly check that all the valves, for both overflow and pressure/vacuum, are still working efficiently.
11.3 INSPECTION AND REPLACEMENT OF Blades
11.3.1 GENERAL INFORMATION ON BLADES
Three material type of blades are fitted on Rotary blades vacuum pump. The following Tabella 8 describes what kind of material is
fitted for each series.
SERIES
MEC 1000/8000
MEC 9/11/13500
MEC 16500
STAR
O = As series
Table 8
pag. 54
TECHNICAL ASSISTANCE
STANDARD Blades
O
-
O
O
X = On request
SPECIAL Blades
X
O
X
X
- = Not available