TM-5-4310-389-14
Table F-1. Tightening Table for Bolts and Nuts
Tightening
Part Number
Pre-loading
1st
2nd
3rd
4th
Designation
or Thread
Nm
Stage
Stage
Stage
Stage
Max
COMPRESSOR
Bolt, Hex and alien
head
M6
10 Nm
(7 lb-ft)
Bolt, Hex and allen
head
M8
25 Nm
(18 lb-ft)
Bolt Hex and allen
head
M10
45 Nm
(32 lb-ft)
Bolt, Hex and allen
head
M12
75 Nm
(53 lb-ft)
Bolt, Hex and allen
head
M14
120 Nm
(85 lb-ft)
Pipe connections (swivel nuts): Finger-tight + 1/2 turn
*These are specific part numbers for these items. When being replaced they are not to be confused with standard
bolts, as they are tempered for a specific application.
Note
When renewing main and connection rod bearings or after piston seizures, renew the bearing bolts.
F-4
