46
Table 8: General Bolt Torque Speci
fi
cations
for Grade 5 Cap Screws
Thread
Sizes
Hex Head Grade 5
Dry Torque Values (ft-lb)
1/4-20
6 - 8
5/16-18
13 - 17
3/8 - 16
24 - 30
1/2 - 13
60 - 75
5/8 - 11
120 - 150
3/4 - 10
210 - 260
7/8 - 9
320 - 400
1 - 8
460 - 580
TORQUE VALUES
Each compressor parts manual lists the torque values
required for each bolt within the compressor. Torque
values are DRY. The use of lubricant on the bolt threads
will cause the bolt pre-tension value to be greatly higher
and may lead to bolt failure. Table 8 is supplied as a
guideline only for use where a torque setting is not
given. The table is not meant to replace researching
the proper torque value for the application.
TOOL LIST FOR SERVICING
A list of tools needed for service Hycomp compressors
is included in Appendix 1. This is a fairly comprehensive
list, but site conditions may require additional tooling
not listed here.
CLEARANCES AND TOLERANCES
Clearances and tolerances are given on
the following pages for various conditions and
compressors. If additional information is required,
please contact the factory.