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-- 8.4) SAFETY VALVE CHECK
(Fig. 15) --
This valve is positioned on the oil separator tank and operates to discharge any
accidental overpressure.
This valve is calibrated and checked at the factory, and cannot therefore be
altered or tampered with for any reason.
Its efficiency can be checked periodically as follows:
1.
Start up the machine as described in paragraph (7.2).
2.
With cocks closed and motor running at a minimum, lift the pin upwards using pliers, as
indicated in fig. 18, and release as soon as the valve can be seen to discharge air.
FIG. 15
WARNING:
The air which escapes from the valve during this checking operation
is mixed with oil particles and therefore to avoid soiling the operator and the
inside of the machine it is advisable to bind the valve with a cloth.
If the pin fail to rise after being guided with the pliers, thereby preventing valve breathing, it
must be replaced at once.
New replacement safety valves must be of the same type as the original and must be
complete with conformity certificate issued by the manufacturer.
As this valve plays a vital role in preventing any dangerous overpressure which could
cause the piping, or the oil separator tank to burst, it is important to request the original
spare part from ROTAIR SPA citing the machine serial number.
ROTAIR will not accept any responsibility in the event of the use of non-original and non-
conforming valves.
A
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