3
Check Module Disassembly
The complete list of items is included in the "Parts" section.
1. Slowly close the inlet and outlet ball valves. Bleed residual
pressure by opening test cocks No. 2, No. 3, and No. 4. Allow the
test cocks to remain open until the reassembling is completed.
Test cock No. 1 should remain closed.
2. Remove the cover bolts (Item 21) using the appropriate size
wrench.
3. Remove the spacer (Item 8) by grasping the flanged end of the
spacer and pulling it straight up.pulling straight up.
4. Remove the inlet check assembly by pulling it in the direction of
flow from the body bore until it is completely exposed, then lift it
out of the body.
5. Remove the outlet check assembly by placing the tip of a
medium-sized, flat-nose screwdriver in the slot of the seat
(Item 3) and prying the check assembly back until the red O-ring
(Item 3.1) is exposed. Then, using fingers, pull it from the body
bore until it is completely exposed, then lift it out of the body.
Check Module Seal Replacement
Both check assemblies are disassembled and reassembled in the
same manner. To service the checks, replace the check modules
with new ones by using check module assembly kits available from
FEBCO. Or, replace the rubber components in the check modules
by using the replacement rubber parts kits.
1. To disassemble the unit, grasp the seat section (Item 3) in one
hand and the guide section (Item 7) in the other hand, then rotate
in a counterclockwise direction (approx. 1/8 turn) until the two
parts disengage.
2. Remove the retaining screw (Item 5.2) and disc retainer (Item 5.1)
so the rubber disc is fully exposed. Carefully pry out the rubber
disc from the poppet. Be careful not to damage the poppet when
removing the disc. Rinse the poppet in clean water and replace
the old rubber disc with a new rubber disc. If the rubber disc is not
damaged, it can be reversed and reinstalled when a new disc is
unavailable. Rinse all other internal components with clean water.
Replace the disc retainer and secure with the retaining screw (Item
5.2).
3. Reassemble the check module by reversing the preceding steps.
When reassembling the check module, insert the poppet stem
into the guide hole and keep fingers clear of the slots in the
module.
