FEBCO 860 User Manual
INSTALLATION, OPERATION, MAINTENANCE
Relief Valve Assembly Instructions
Series 825YD, 826YD, 860, 880V
Repair Kits: 905102, 905316, 905192, 905187, 905188,
905189, 905190, 905191, 905227, 905228, 905229
IOM-F -RV
STEP #1:
When cleaning relief valve, remove
module assembly from relief valve
body by pulling, not twisting.
STEP #2:
If module repair is necessary,
remove plastic label from around
pan head retaining screw.
STEP 3:
Remove retaining screw and completely disassemble relief valve
module. Thoroughly clean main
guide.
STEP 5:
Position inner diaphragm over the
main guide and drop into place with
beaded flange fully engaging groove
on main guide.
STEP 4:
New inner diaphragm will come in
kit with fabric side out and the beaded flange positioned up, as shown.
MAINTENANCE MANUAL SERIES 825YD, 826YD, 860, 880V
STEP 6:
Clean or replace plastic slip ring.
Clean the brass diaphragm retainer.
Lightly lubricate retainer threads
with a food grade petroleum jelly or
equal. Place slip ring into retainer.
Screw retainer with slip ring onto
main guide, securing inner diaphragm. Make sure the retainer is
secure.
STEP 9:
Push the disc holder through the
guide while holding the diaphragm
flush against the end of the holder.
Continue until the holder stops on
the guide. Place the assembly on
a flat surface with the diaphragm
facing up.
This will ensure that excess rubber
will roll to the inside of the main
guide when the holder assembly
strokes, otherwise the diaphragm
will crack and leak.
STEP 10:
Place flow washer on top of the
diaphragm with cross channels facing upward (Series 860 and 880V
ONLY). Line up the center holes,
then place the spring into the guide.
STEP 7:
Push inner diaphragm back through
main guide until top of the diaphragm is flush with the top of the
retainer.
STEP 8:
Turn guide/diaphragm assembly upside down and work disc
holder into guide until flush with
diaphragm.
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