SECOH Service & Maintenance Manual - 4 - 31.10.07
4. Valve box and diaphragm replacement
a) Undo the 4 corner bolts of the overall cover.
b) Remove the overall cover. If it is hard to
remove, insert a screwdriver in the slot
provided.
c) Pull out the bushing.
d) Remove the shock absorber
e) Undo the 4 screws of the holder cover.
Note: It is easier to change one diaphragm at a
time.
f) Insert the magnet support jig in the 4
corners, between the magnet and the core.
Note: The magnet support jig (carton strips)
is included in the service repair kit.
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