Standard Charts And Tables; Index Of Tables; Effect Of Special Lubricants - Komatsu 930E-2 Shop Manual

This manual provides dual dimensioning for most
specifications. U.S. standard units are specified first,
with metric (SI) units in parentheses. References
throughout the manual to standard torques or other
standard values will be to one of the following Charts
or Tables. For values not shown in any of the charts or
tables, standard conversion factors for most com-
monly used measurements are provided in TABLE
XIII, page A5-6.

INDEX OF TABLES

TABLE I . . . . Standard Torque Chart (SAE) A5-1
TABLE II Standard Torque, 12-Point, Grade 9 A5-2
TABLE III . Standard Metric Assembly Torque A5-2
TABLE IV . . . . JIC Swivel Nuts Torque Chart A5-3
TABLE V . . . . . . . Pipe Thread Torque Chart A5-3
TABLE VI . . . . . . . O-Ring Boss Torque Chart A5-3
TABLE VII . . . O-Ring Face Seal Torque Chart A5-3
TABLE VIII . Torque Conversions (ft.lbs – N.m) A5-4
TABLE IX . Torque Conversions (ft.lbs – kg.m) A5-4
TABLE X . Pressure Conversions (psi – kPa) A5-4
TABLE XI . Pressure Conversions (psi – MPa) A5-4
TABLE XII . . . . . . . Temperature Conversions A5-5
TABLEXIII . . . Common Conversion Multipliers A5-6
GRADE 5
CAP- TORQUE – GRADE 5
SCREW
THREAD
ft. lbs. kg.m
SIZE
1/4–20 7 0.97
1/4–28 8 1.11
5/16–18 15 2.07
5/16–24 16 2.21
3/8–16 25 3.46
3/8–24 30 4.15
7/16–14 40 5.5
7/16–20 45 6.2
1/2–13 65 9
1/2–20 70 9.7
9/16–12 90 12.4
9/16–18 95 13.1
5/8–11 125 17.3
5/8–18 135 18.7
3/4–10 220 30.4
A05001 03/01

STANDARD CHARTS AND TABLES

TABLE I
STANDARD TORQUE CHART
SAE HEX HEAD CAPSCREW AND NUT ASSEMBLY
(LUBRICATED THREADS)
TOLERANCES
TORQUE – GRADE 8
N.m ft. lbs. kg.m N.m
9.5 10 1.38 13.6
10.8 11 1.52 14.9
20.3 21 2.90 28
22 22 3.04 30
34 35 4.84 47
41 40 5.5 54
54 58 8.0 79
61 62 8.57 84
88 90 12.4 122
95 95 13.1 129
122 125 17.3 169
129 135 18.7 183
169 175 24.2 237
183 190 26.2 258
298 310 42.8 420
1 ft. lbs. = 0.138 kg.m = 1.356 N.m
Standard Torque Charts and Tables

EFFECT OF SPECIAL LUBRICANTS

On Fasteners And Standard Torque Values
Haulpak Division does NOT recommend the use of
special "friction-reducing" lubricants such as, "Copper
Coat", "Never Seize", and other similar products on the
threads of standard fasteners where "standard torque"
values are applied.
The use of special "friction-reducing" lubricants will
significantly alter the clamping force being applied to
fasteners during the tightening process. If special "fric-
tion-reducing" lubricants are used with the "Standard
Torque" values listed below in Table I (and most
Haulpak service manuals), excessive stress and pos-
sible breakage of the fasteners may result.
Where Torque Tables specify "Lubricated Threads" for
the Standard Torque values listed, these standard
torque values are to be used with simple lithium
base chassis grease (multi-purpose EP NLGI) or a
rust- preventive grease (see list, page A5-2) on the
threads and seats, unless specified otherwise.
NOTE: Always be sure threads of fasteners and
tapped holes are free of burrs or other imperfections
before assembling.
Standard Torque values are not to be used when
"Turn-of-the-Nut" tightening procedures are rec-
ommended.
±
10%
TORQUE – GRADE 5
CAPSCREW
THREAD
ft. lbs. kg.m
SIZE
3/4–16 235 32.5
7/8–9 350 48.4
7/8–14 375 51.9
1.0–8 525 72.6
1.0–12 560 77.4
1.0–14 570 78.8
1 1/8–7 650 89.9
1 1/8–12 700 96.8
1 1/4–7 910 125.9
1 1/4–12 975 134.8
1 3/8–6 1200 166
1 3/8–12 1310 181
1 1/2–6 1580 219
1 1/2–12 1700 235
GRADE 8
TORQUE – GRADE 8
N.m ft. lbs. kg.m N.m
319 335 46.3 454
475 500 69.2 678
508 530 73.3 719
712 750 103.7 1017
759 790 109.3 1071
773 800 110.6 1085
881 1050 145 1424
949 1140 158 1546
1234 1480 205 2007
1322 1580 219 2142
1627 1940 268 2630
1776 2120 293 2874
2142 2560 354 3471
2305 2770 383 3756
A5-1