Page 34 - Mechanical Products Installation Handbook IH-1000M

26 INSTALLATION INSTRUCTIONS Couplings
Grooved Snap Coupling
• WARNING
Always read and understand the instructions including the “Installation Guidelines” provided on page 15. Failure to follow these instructions may result in improper product installation, joint failure, leakage, serious personal injury, and/or property damage.
The following instructions apply to the Figure 780 Grooved Snap Cou- pling as described in technical data sheet G145.
Step 2.
Step 3.
Step 4.
Step 5a.
Step 1. Follow the preliminary set-up steps of the Grooved Pipe and Gasket Preparation section on pages 16 and 17. Failure to follow these preliminary set-up steps before product installation can adversely affect subsequent system performance.
Step 2. Install the gasket by placing the gasket over the pipe that is to be fastened by the cou- pling, and ensure that the gasket lip does not extend beyond the end of the pipe.
Step 3. Bring both pipe ends together, ensure proper alignment, and slide the gasket into posi- tion, properly centering it between the grooved portions of each pipe. No part of the gasket should protrude into the groove of either pipe.
Step 4. Remove the split pin. Open the hinged coupling and mount it around the gasket so that the coupling keys are securely engaged into the grooves.
Step 5. With the Lever Handle, squeeze the Housing Segments tightly together.
Hook up the Nose of the Lever Handle in the Cradle Tab of the other Housing Segment.
Step 5b.
• CAUTION
If the Lever Handle is difficult to open or close, using a section of steel pipe as shown to increase leverage can avoid injury such as pinched fingers.