TM-5-4310-389-14
F-2 TIGHTENING INSTRUCTIONS FOR ENGINE BOLTS AND STUDS. All bolts and studs tabulated shall first be
hand-tightened to about 30 Nm and then torqued alternately in stages until the specified angle degrees are obtained.
Before assembling the bolts and studs, wet the threads and the bearing faces of the heads with motor oil. Tools required,
003-0500 and 003-1102. For specific torque values refer to table F-1 and figure F-1 in the Appendix F.
a.
When preloading, hold wrench so the thumb touches the end. Use a torque wrench for torques above 30 Nm.
b.
When tightening, tighten crosswise where applicable, through the scheduled angles. For measuring and reading
degrees, it is advisable to use tools 003-0500 and 003-1102.
c.
Where such devices cannot be used, determine angles by a punch mark on the hexagon.
F-2
