Rev. 00 of 01.01.2009
23 / 29
11. MAINTENANCE, TESTS, REPAIRS, TECHNICAL SERVICE
During maintenance, inspection, repairs, we recommend use of the personal
protection devices listed in this manual.
Maintenance, inspection, repairs, must be performed with maximum care, with
the vacuum pump switched off and the power take off disengaged.
11.1 CLEANING
11.3.1 Cleaning of the pump body.
If any amount of sewage enters the vacuum pump, immediately clean the inside of the
body by suctioning diesel fuel or oil, by means of the discharge hose with the pump in
pressure mode. After this operation, inject fresh lubricating oil. The same operation is to
be carried out when the vacuum pump does not operate for a long period of time. Prior
to storage for an extended period, remove the suction and discharge hoses connected
to the pump and cover any open ports. Wash the body with detergents (e.g. thinner).
11.3.2 Washing the oil tank.
At least once a year, wash the oil tank with suitable detergents.
11.3.3 Washing and cleaning the oil valves (if applicable).
At least once a month wash and clean the valves, if any, unscrewing them from the
vacuum pump and cleaning them with water or non-corrosive detergents.
11.2 CHECK OF THE VALVES
Periodically check that all valves (overfill, gate, check pressure/vacuum relief) are functioning
properly.
11.3 INSPECTION AND REPLACEMENT OF THE VANES
Pump vane features
Two types of vanes made of different materials are fitted on the vacuum pumps, as indicated in table 7
(NOTE: All pumps sold in the USA use only the “heavy duty” vanes on all pumps)
:
MODEL
STANDARD
HEAVY
DUTY
AIR 60 A
O
X
AIR 70 A
O
X
AIR 80 A
O
X
(
Table 7)
O = STANDARD
X = ON REQUEST
(standard in USA)
