CAUTION
Wiring work should be carried out only by qualified technicians following
local electrotechnical standards.
Avoid doing wiring work on a rainy day or in high humidity. Moisture inside
the connectors or the terminal box may cause a short-circuit or rust.
A packing (gasket) is attached to the cap of auxiliary equipment such as
positioners. Do not lose it during wiring work.
Take care not to lose screws for the cap of auxiliary equipment such as
positioners.
When assembling the valve, check that the packing (gaskets) are in place
and tighten the screws evenly.
Make sure that the seal of cable glands and electrical conduits is sufficient
to prevent the entry of moisture.
(2) Removing air pipes
Shut off the air supply to the control valve with a stop valve, etc., and remove the air pipes.
Seal the ends of the removed pipes with tape, etc.
(3) Removal from the piping
Secure the control valve by slinging or by other means. Then, remove bolts and nuts from
the flanges and detach the control valve from the piping.
WARNING
When connecting the valve to the piping, do not put your hand or foot
under the valve or between flanges. You may lose your fingers or your foot
may be injured.
CAUTION
If the eyebolts (eyenuts) attached to the actuator are used to hoist the
valve, make sure that the weight does not exceed the limit specified in the
user's manual. An excessive load may damage the actuator or cause air
leakage.
4-5
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