172-65417MA-05 (FS21-L/FS21-H + BD2) 4 Oct 2021
11
Disassembly/Reassembly
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury
or damage to property and equipment.
WARNING
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble.
(Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.)
Detaching/Reattaching the Trap Unit and Connector Body
Part
During Disassembly
During Reassembly
Connector
Bolts
Remove with a socket wrench
Consult the table of tightening torques and
tighten to the proper torque
Connector
Gaskets
Remove with a flat-head
screwdriver and clean sealing
surfaces
Replace with new gaskets; to facilitate
assembly and prevent loosening of the
gaskets, apply a small amount of adhesive at
120º intervals around the outer edge of the
gaskets
Attaching the Trap Unit to the Connector Body (Figure A)
1. If attaching a new trap unit, be sure to remove the
protective cap from the connector flange. Be careful not to
drop the gaskets when removing the cap.
2. Grasp the end of the trap unit and align its gasket housing
with the indentation on the connector body. Be sure to
have the nameplate facing upwards.
3. Once aligned, insert and finger tighten the connector bolts.
Verify that the trap unit is within the allowable inclination.
Figure A
Detaching/Reattaching the Cover and Float
Part
During Disassembly
During Reassembly
Cover Bolt
Remove with a socket wrench
Consult the table of tightening torques
and tighten to the proper torque
Cover
Remove carefully; take care to prevent
any damage to the float, which may fall
out when the cover is removed
Make sure there are no pieces of the
old gasket on the sealing surfaces,
align the cover with the body and
connector and reattach
Float
Remove, being careful not to scratch
the surface
Place inside the body (or on the cover),
being careful not to scratch the surface
Cover Gasket FS21-H: Remove the gasket and clean
sealing surfaces
Replace with a new gasket
FS21-L: Remove only if damaged
Replace with a new gasket if damaged
