Main Rotor Assembly; Torque Specifications; Table 5-12. Torque Specifications (Ft-Lbs) - Emerson VILTER VSS Installation, Operation And Service Manual

Section 5 • Maintenance/Service

Main Rotor Assembly

Due to the procedures and tools involved
in the disassembly and reassembly, the
main rotor assembly must be performed
by qualified individuals. Please consult the
factory if maintenance is required.

Torque Specifications

Refer to the following table for torque specifications.
TYPE
BOLT
SAE GRADE 2
COARSE (UNC)
SAE GRADE 5
COARSE (UNC)
SAE GRADE 5
FINE (UNF)
SAE GRADE 8
COARSE (UNC)
SOCKET HEAD
CAP SCREW
(ASTM A574)
COARSE (UNC)
1) Torque values on this sheet are not to override those given on the individual drawings.
2) When using loctite, the torque value on this sheet are only accurate if bolts are tightened
immediately after loctite is applied.
NOTES:
* The proof strength of Grade 2 bolts is less for sizes 7/8 and above and therefore the torque
values are less than smaller sizes of the same grade.
5 – 46
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S

Table 5-12. Torque Specifications (ft-lbs)

HEAD
MARKINGS
#10
5
NOMINAL SIZE NUMBERS OR INCHES
1/4 5/16 3/8 7/16
5 10 18 29
8 16 28 44
16
11 22 39 63
13 26 46 73
1/2 9/16 5/8 3/4
44 63 87 155
68 98 135 240
96 138 191 338
112 155 215 380
7/8
150*
387
546
614