ITT Skotch Trifecta T4405F, Инструкции по установке, эксплуатации и обслуживанию

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ITT
Engineered Valves, LLC Page 21 of 24
Technical Manual No. IOT4400F Effective 8/31/2018
REV LEVEL B
b) Loosen the roller switch lever.
c) Place a 1/8" shim between the inlet valve shaft and roller switch
lever.
d) While holding the roller firmly against the shim and shaft, rotate
the switch actuator shaft until the normally closed contacts of the
switch break. At this point, securely fasten the lever to the switch
actuator shaft.
e) Remove the spacer. The roller switch lever should be firmly
resting on the inlet valve shaft and the normally closed contacts
should be made.
f) Stroke the valve to the open position. Allow the valve to close
slowly while monitoring the flow rate from the outlet of the valve.
Flow should cease (<24 in
3
/hr) before the normally closed contacts
make. If the normally closed contacts do not make, repeat starting
at Section VII.A.2.b, but increase the shim thickness by 1/32". If
the switch trips before flow commences, repeat starting at Section
VII.A.2.b, but decrease the shim thickness by 1/32".
g) Cycle the valve though several complete cycles while monitoring
the switch contacts making certain they trip and reset.
h) Replace the inlet valve switch cover.