Page 39 - Mechanical Products Installation Handbook IH-1000M

INSTALLATION INSTRUCTIONS 31 Mechanical Outlet Couplings
Figure 702 Grooved Outlet Coupling
Step 5. Place the lower coupling housing over the gasket around the bottom side of the gasket.
Step 6. Place the upper coupling housing over the gasket so that the outlet opening of the housing properly fits on the gasket outlet opening. Make sure the housing keys engage the pipe grooves.
Step 7. Insert bolts and hand-tighten nuts. Make sure the oval neck of the bolt engages into the bolt hole of the housing.
Step 8. Alternate when tightening nuts until properly tightened to bring housing in contact with the bolt pads.
Note: Uneven tightening of bolts and nuts may cause the gasket to be pinched, resulting in an immediate or delayed leak. Excessive tight- ening of nuts may cause a bolt or joint failure. The recommended bolt torque for a 3/8 inch bolt is 30 to 40 ft.-lbs. and 90 to 110 ft.-lbs. for a 1/2 inch bolt.
When setting the torque on power impact wrenches, always refer to the manufactur- er's recommended bolt torque specifications. Failure to use the manufacturer's settings and abide by manufacturer instructions may result in loss of warranty protection, invalidate listing certifications and/or cause personal injury or property damage.
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