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2.
Operation check of the diaphragm complete set
Push the diaphragm and check that it moves smoothly.* If the diaphragm is not moved or
lacks movement or is lumbering even being pushed, remove the diaphragm complete set
from the cover complete set. If the kick spring drops off, the product does not operate
normally. Go back to 1 and install the parts again.
Cover
Kick spring
（It can drop into the
pipe and bend inside
the pipe.）
The kick spring drops off the plunger (Bad example: abnormal condition)
3. Installation of the cover complete set (the diaphragm complete set with the kick spring) to the
body
When installing, insert the spring pin to the bleed port (pin hole).
Spring pin
Check the underside of
the bleed port for sticking
out of seal material on
piping.
Remove it, if any.
4. Fasten the cover complete set to the body with the bolts, using the torque specified below. Be
sure to evenly tighten each bolt.
Push
diaphragm
several times.
Pipe
Bleed port
Tightening torque
■
Nominal size
10-20A
25A, 32A
40A, 50A
the
N G
Tightening torque (N ∙ m)
10
12
15
16
■ EPDT-266c ■
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