2-13. Coupling Rings. Models ADC-1200 and 1416
a. General. Coupling rings can be used to secure grooved-to-grooved connections.
Use of Coupling Rings. The coupling ring is used as follows (figure 2-13):
(1) Using T handle hex key from repair kits, remove four screws (1) to open coupling ring halves (2).
(2) Slide gasket (3) onto grooved connector so that seal is flush with end of connection.
(3) Align connectors (4), slide gasket (3) over joint and center it in place. Ensure hoseline Iayline (5) align if
(4) Install coupling ring halves (2) and screws (1). Tighten evenly, alternating between screws until ring is
s e c u r e .
Figure 2-13. Removal and Installation of Coupling Rings.
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