172-65563MAJ-03 (P46S) 6 Oct 2021
11
Instructions for Plug/Holder Disassembly and Reassembly
The seal on the threaded plugs/holders found on TLV products is formed by a flat
metal gasket. There are various installation orientations for the gaskets, such as
horizontal, diagonal and downward, and the gasket may be pinched in the thread
recesses during assembly.
Instructions for Disassembly and Reassembly
①
Remove the plug/holder using a tool of
the specified size (distance across
flats).
②
The gasket should not be reused. Be
sure to replace it with a new gasket.
③
Clean the gasket surfaces of the
plug/holder and the product body using
a rag and/or cleaning agents, then
check to make sure the surfaces are not
scratched or deformed.
④
Coat both the gasket surface of the
plug/holder and the threads of the
plug/holder with anti-seize, then press
the gasket onto the center of the
gasket surface of the plug/holder,
making sure the anti-seize affixes the
gasket tightly to the plug/holder. Check
to make sure the gasket is not caught
in the recesses of the threads.
⑤
Hold the plug/holder upside down to
make sure that the anti-seize makes
the gasket stick to the plug/holder
even when the plug/holder is held upside down.
⑥
Screw the plug/holder by hand into the product body while making sure that the
gasket remains tightly affixed to the center of the gasket surface of the
plug/holder. Make sure the entire gasket is making contact with the gasket
surface of the product body. It is important at this point to make sure the gasket
is not pinched in the thread recesses of the plug/holder.
⑦
Tighten the plug/holder to the proper torque.
⑧
Next, begin the supply of steam and check to make sure there is no leakage
from the part just tightened. If there is leakage, immediately close the inlet valve
and, if there is a bypass valve, take the necessary steps to release any residual
pressure. After the surface of the product cools to room temperature, repeat the
procedure beginning from step 1.
