TM 5-2420-230-24-2
Component Specifications and Torque Values
Section V - Engine Component Specifications - Group 18
Page V-10
B Series
Component or Assembly (Procedure)
Ref.No./Steps
Metric
U.S.
Belt Tension - Fan Drive
Belt Tension
267 N
MIN
60 lbf
578 N
MAX
130 lbf
Engine Assembly - Capscrew Torque Values
Main Bearing Capscrew Torque Value
and Sequence
1
60 Nm
44 ft-lb
2
119 Nm
88 ft-lb
3
176 Nm
129 ft-lb
Oil Pressure Regulator Retainer Plug
80 Nm
60 ft-lb
Rear Seal Cover Mounting
9 Nm
84 in-lb
Flywheel Housing Capscrews
77 Nm
57 ft-lb
Note: Tighten the capscrews in the
sequence shown.
Ring Gear Replacement
Heat the new ring gear for 20 minutes in an oven preheated to 127C [260F].
Flywheel Mounting Capscrews
137 Nm
101 ft-lb
Tighten in the sequence shown
L-484