172-65461MA-03 (JH7.5R-B) 18 Nov 2020
9
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
Use hoisting equipment for heavy objects (weighing approximately
20 kg (44 lb) or more). Failure to do so may result in back strain or other
injury if the object should fall.
CAUTION
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 m ay 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
.
)
Drain Plug
Part
During Disassembly
During Reassembly
Drain Plug Remove with a socket wrench Consult the table of tightening torques and tighten
to the proper torque
Drain Plug
Gasket
Remove the gasket and clean
sealing surfaces
Replace with a new gasket; coat surfaces with
anti-seize
Detaching/Reattaching the Cover and its Components
Part
During Disassembly
During Reassembly
Cover Nut
Remove with a socket
wrench
Consult the table of tightening torques and tighten
to the proper torque
Cover
Remove by lifting up and off Make sure there are no pieces of the old gasket
left on the sealing surfaces of the body and cover,
align the arrows on the body and cover and
reattach
Cover Gasket Remove the gasket and
clean sealing surfaces
Replace with a new gasket
Disassembly/Reassembly of Components inside the Air Vent Case/Guide
Part
During Disassembly
During Reassembly
Snap Ring
Pinch the insides
together and remove
from the air vent case
Insert securely into the groove in
the air vent case
Air Vent Screen
Remove, being careful
not to misshape
Replace, being careful not to
misshape.
Bimetal Unit (Bimetal
Plate / Snap Ring /
Valve Plug)
Remove air vent parts
from cover
Make sure to reinsert in the
proper orientation. (Fig.A)
Air Vent Valve Seat
Remove with a socket
wrench
Consult the table of tightening
torque and tighten to the proper
torque
Air Vent Case
Remove from the cover Place it in the cover
Air Vent Guide
Remove with a socket
wrench
Consult the table of tightening
torques and tighten to the proper
torque
Air Vent Guide Gasket Remove the gasket and
clean sealing surfaces
Replace with a new gasket, coat
with anti-seize
Figure A
