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TM 10-5430-238-12&P
0019 00
DISASSEMBLY
Gate Valve
1. Remove jam nut (1) from the top of hand-wheel (2).
2. Remove hand-wheel (2) from the top of valve stem (3).
3. Remove packing nut (4) from bonnet (5).
4. Remove packing gland (6) and gland spring (7) from valve stem (3).
NOTE
The packing ring will remain in the bonnet until the valve stem, the disk riser, and the disk
halves have been removed from the bonnet.
5. Remove eight hex nuts (8), lockwashers (9), and hex-head cap screws (10) holding bonnet (5) to valve
body (11).
CAUTION
Keep the disk halves together when removing from the valve body. Disk halves
must be grasped firmly when disassembled from the valve body. Dropping the
disk halves off the disk riser can damage the sealing surfaces. As the discs clear
the slots in the valve body, hold them together with the right hand in order to
avoid dropping off the disk stem and damaging the sealing surface.
6. Lift bonnet (5) with valve stem (3), disk riser (12), and disk halves (13) and (14) from valve body (11).
0019 00-3
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