Maeda CC1908S-1 - Page 223

M A E D A Crawler Crane 6.6 STANDARD TIGHTENING TORQUES
5/2020 CC1908S-1 6-15
[4] Other bolts
Nominal size
(a)
Width across
flats (b)
Target tightening torque Tightening torque range
mm mm ftꞏlbs Nꞏm kgfꞏm ftꞏlbs Nꞏm kgfꞏm
6 10 2.2 3.0 0.30 1.9-2.6 2.6-3.5 0.26-0.35
8 13 5.5 7.5 0.75 4.8-6.3 6.5-8.6 0.65-0.85
10 17 10.7 14.5 1.45 9.3 to 12.3 12.6 to 16.7 1.25 to 1.65
12 19 18.4 25.0 2.55 16.0 to 21.2 21.7 to 28.8 2.20 to 2.95
14 22 29.5 40.0 4.10 25.7 to 33.9 34.8 to 46.0 3.55 to 4.70
16 24 46.1 62.5 6.40 40.1-53.0 54.3-71.9 5.55-7.35
18 27 63.4 86.0 8.75 55.2 to 72.9 74.8 to 98.9 7.60 to 10.0
20 30 90.0 122 12.4 78.2 to 103 106 to 140 10.8 to 14.3
22 32 122 166 16.9 106 to 141 144 to 191 14.7 to 19.4
24 36 156 211 21.5 135 to 179 183 to 243 18.7 to 24.7
27 41 228 309 31.4 198 to 262 269 to 355 27.3 to 36.1
30 46 309 419 42.6 268 to 356 364 to 482 37.0 to 49.0
33 50 420 570 58.0 365 to 484 495 to 656 50.4 to 66.7
36 55 540 732 74.5 469 to 621 636 to 842 64.8 to 85.7
HOSE CONNECTOR TIGHTENING TORQUE
Unless otherwise specified, torque hose connectors to the values shown in the following table:
Determine the appropriate tightening torque based on the width across flats (b) of the hose connector.
Nominal No.
Width across
flats (a)
Target tightening torque Tightening torque range
- mm ftꞏlbs Nꞏm kgfꞏm ftꞏlbs Nꞏm kgfꞏm
02 19 32 44 4.5 26 to 40 35 to 54 3.5 to 5.5
03
22 55 74 7.5 40 to 68 54 to 93 5.5 to 9.5
24 58 78 8.0 44 to 72 59 to 98 6.0 to 10.0
04 27 76 103 10.5 62 to 97 84 to 132 8.5 to 13.5
05 32 116 157 16.0 94 to 137 128 to 186 13.0 to 19.0
06 36 159 216 22.0 131 to 180 177 to 245 18.0 to 25.0