Valve stem maintenance
NOTE:
To maintain the overall longevity and control accuracy of the actuator,
it is recommended the valve stem be serviced twice a year.
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6WHP
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1.
Turn the actuator off by fl ipping the circuit breaker located
at or near the junction box supplying voltage to the device
2.
Remove the 3 screws holding the actuator mounting
assembly in place using a hexagonal wrench
3.
Remove the actuator and actuator assembly and then loosen
the stem completely by turning it anti-clockwise
4.
Apply lubricant to the thread of the valve stem (recommended
lubricant is TAS-100EP solid fi lm lubrication grease)
5.
After applying the lubricant, tighten and loosen the stem a
few times by turning it clockwise and then anti-clockwise
repeatedly (2-3 times)
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6.
Place the actuator and assembly back onto the stem
and then tighten the screws again
7.
After re-coupling the actuator and valve, switch it back on
again. Provided the control signal shown in the display is
”
6o-0
”, it should work normally.
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