172-65097M-05 (CV10 Control Valve) 7 Oct 2021
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4. Disassembling/Reassembling the Gland Section
Of the parts and procedures listed in this step, at this stage only partially loosen the
gland retainer. Come back to this step and proceed with removal of each of the parts
listed here only after having first removed the bonnet (refer to
“6. Disassembling/
Reassembling the Bonnet
” and “7. Removing/Reinserting the Valve”).
Part
During
Disassembly
During Reassembly
Gland
Retainer
Remove with a
socket wrench
Consult the table of tightening torques and tighten to the
proper torque
V-rings
Pull up and off
Coat the groove with heat-resistant grease (silicon grease)
making sure the V-rings are in the proper orientation;
re-attach the V-rings with their grooves facing downward
Washer
Pull up and off
Coil Spring Pull up and off
5. Disassembling/Reassembling the Positioner
Part
During Disassembly
During Reassembly
Air Line
Disconnect with a wrench
Positioner Cover
Remove with a flat-head
screwdriver
Consult the table of
tightening torques and
tighten to the proper torque;
make sure to tighten evenly
Fixing Bolt
Remove with a socket
wrench
Consult the table of
tightening torques and
tighten to the proper torque
Washer
Span Adjustment Pin
DO NOT loosen or remove
as the zero point and span
will become displaced
If the pin has been removed,
be sure to carry out zero
point and span adjustment
Gland Retainer
V-rings
Washer
Coil Spring
Cross-section view of
V-rings
Positioner Cover
Washer
Positioner
Span Adjustment Pin
Fixing Bolt
