FEBCO 860 Reduced Pressure Zone Assemblies - Small Diameter User Manual
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MAINTENANCE MANUAL SERIES 825YD, 826YD, 860, 880V
STEP 11:
Place the spring button over the
spring. While pressing the button
firmly against the inner diaphragm,
insert the pan head retaining screw.
860 and 880V require a drilled flow
screw.
Flow screw must have two drilled
holes intersecting each other and
unobstructed. Place the previously
removed decal or tape over the
screw head to protect the outer
diaphragm.
STEP 12:
Reassemble disc and lower the
guide to the disc holder. DO NOT
ALLOW THE DISC HOLDER TO
TURN OR TWIST DURING THIS
OPERATION. Clean, lubricate and
install main guide O-ring.
Models 825YD and 826 YD use a
Stainless Steel Lower Guide and a
Disc Washer in place of the Plastic
Lower Guide as shown.
STEP 13:
Place new outer diaphragm upside
down on a flat service and insert the
module as shown.
STEP 14:
Push the flange section of the
diaphragm down around the base
of the module until it is partially
inverted as shown.