Table of Contents
Advertisement
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
NOTES:
immediately after loctite is applied.
* 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 – 68
Table 5-19. Torque Specifications (ft-lbs)
HEAD
MARKINGS
#10
5
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
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
Advertisement
Table of Contents
Troubleshooting
