172-65457MA-02 (JH7.2R-X) 14 Jul 2015
12
3
5
6
Gasket
Do not pinch gasket
in thread recesses
4
Coat with anti-seize
Gasket Surface
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.
