MNL-0295
August 27, 2009 Page 77
7.4 Tables and Reference Data
7.4.1 Tightening Torque Values
7.4.2 Pipe Connections (swivel nuts)
• Tighten just firmly enough so that leakage is stopped (finger tight plus up to an additional half turn as
necessary
NOTICE
Unless otherwise specified in text, the following tightening torque values apply.
The indicated torque values are valid for bolts in greased condition.
Replace self-retaining nuts on reassembly.
Bolt or screw Thread Max. torque
Hex or socket head ¼ in (M 6) 7 ft-lb (10 N m)
Hex or socket head 5/16 in (M8) 18 ft-lb (25 N m)
Hex or socket head 3/8 in (M 10) 32 ft-lb (45 N m)
Hex or socket head ½ in (M 12) 53 ft-lb (75 N m)
Hex or socket head 9/16 in (M 14) 85 ft-lb (120 N m)
Hex or socket head 5/8 in (M 16) 141 ft-lbs (200 N m)
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