Leser 330 Instructions De Service page 9

Safety
Safety instructions
2.4.2 Modification of Change-over Valve
Unauthorised modifications to the Change-over Valve are prohibited. Modifica-
tions can lead to leakage or inadmissibly high pressures in the system. This, in
turn, results in a higher risk of injury.
Do not insulate the actuator assembly of the Change-over Valve, as this could
cause the valve to become blocked.
Moving and functionally-important parts must not be given a protective coating.
Regularly inspect the Change-over Valve for inadvertent changes, such as
damage to the seatings or foreign objects in the valve.
2.4.3 Ambient and operating temperature
Materials tend to expand at high temperatures. Take this fact into account when
choosing and installing the Change-over Valve.
At low ambient and/or operating temperatures, ice may form inside the
Change-over Valve, vapours may freeze and the flow rate may drop. This can
impair the function of the Change-over Valve. Observe the operating tempera-
tures of the Change-over Valves and perform regular function tests.
Skin contact with hot or cold surfaces can cause injury from burns. Always
wear suitable personal protective equipment.
2.4.4 Potential hazard zones on components
Sharp edges and burrs, and exposed spindle guides can cause injury. Always
wear suitable protective gloves and install appropriate safety guards.
2.4.5 High noise emissions
Certain systems cause high noise emissions when in operation. Always wear
suitable hearing protection.
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