172-65118MA-04 (T8N/TF8N/T10N/TF10N) 6 Oct 2021
7
Disassembly/Reassembly
As glass parts will wear and deteriorate in quality, they should be
replaced annually. Be careful not to damage the glass by striking it with
objects or inflicting any other shocks. If the glass becomes damaged,
subsequent fluid discharge could result in injury or other damage.
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.)
Disassembly/Reassembly
Part
During Disassembly
During Reassembly
Glass
Holder
Remove with a wrench
Consult the table of tightening torques and
tighten to the proper torque
Gasket Remove the gasket and clean sealing
surfaces
Replace with a new gasket if warped or
damaged
Sight
Glass
Remove, being careful not to scratch the
surface
Reinsert, being careful not to scratch the
surface
Guard
Plate
Remove the guard plate
Replace with a new guard plate
Gasket Remove the gasket and clean sealing
surfaces
Replace with a new gasket if warped or
damaged
Ball
Remove the ball
Replace with a new ball if badly worn
Table of Tightening Torques
Be sure to observe the proper tightening torque for the glass holder. If
the glass becomes damaged, subsequent fluid discharge could result
in injury or other damage.
WARNING
Model
Size
Glass Holder
Torque
Distance
Across Flats
mm
(in)
N
∙m
(lbf
∙ft)
mm
(in)
T8N/TF8N/T10N/TF10N
(Optional Models: T8NL/TF8NL/T10NL/TF10NL)
15
– 50 (
3
/
4
– 2)
120
(88)
60
(2
3
/
8
)
NOTE: -Coat all threaded portions with anti-seize.
-If drawings or other special documentation were supplied for the
product, any torque given there takes precedence over values
shown here.
(1 N
m
10 kg
cm)
