SMS TORK REA 60, Инструкция по установке и эксплуатации

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Short - time duty S2
The operation time at a constant load is short, so that ther-mal equilibrium is not reached. The pause is
long enough for the machine to cool down to ambient temperature. The duration of the short - time
operation is limited to 15 min (10 min, 30 min).
Intermittent duty S4
The duty is a sequence of identical cycles which consist of starting time, operation time with constant load
and rest period. The rest period allows the machine to cool down so that so that thermal equilibrium is not
reached. The relative on-time at S4-25% or S4-50% is limited to 25% and 50% respectively .
Heater
Condensation in the actuator is possible due to wide fluctuation of the ambient temperature. The heater integrated
in the control unit prevents this in general.
Manual Hand Wheel and Lever
REA actuators are provided with a manual operation system.
The REA60 actuator comes standard with a manual override nut.
This is located on the bottom of the unit, and can be easily operated with a 5M wrench.
Turn the hand wheel until the valve reaches the required position.
Turn clockwise to open and counter clockwise to close.
When nut becomes tight DO NOT FORCE further as this will cause serious damage to the gearing.