Maeda D3001, Operation Manual

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M A E D A Mini-Crawler Crane Section 5 – SPECIAL TOOLS AND STANDARD TIGHTENING TORQUE
3/2019 MC305C-3 5-17
Other Bolts
Nominal Size
(Mark "a")
Width Across
Flat
(Mark "b")
Target value Tolerance
mm mm N·m kgf·m N·m kgf·m
6 10 3.0 0.30 2.6-3.5 0.26-0.35
8 13 7.5 0.75 6.5-8.6 0.65-0.85
10 17 14.5 1.45 12.6-16.7 1.25-1.65
12 19 25.0 2.55 21.7-28.8 2.20-2.95
14 22 40.0 4.10 34.8-46.0 3.55-4.70
16 24 62.5 6.40 54.3-71.9 5.55-7.35
18 27 86.0 8.75 74.8-98.9 7.60-10.0
20 30 122 12.4 106-140 10.8-14.3
22 32 166 16.9 144-191 14.7-19.4
24 36 211 21.5 183-243 18.7-24.7
27 41 309 31.4 269-355 27.3-36.1
30 46 419 42.6 364-482 37.0-49.0
33 50 570 58.0 495-656 50.4-66.7
36 55 732 74.5 636-842 64.8-85.7
Hose Connector Tightening Torque
Unless otherwise indicated, tighten hose connectors using the
torque values shown in the following table:
Determine the appropriate tightening torque based on the hose
connector width across flats (a).
Hose No.
Width Across
Flat
(Mark "a")
Target value Tolerance
- mm
N▪m kgf▪m N▪m kgf▪m
02 19
44 4.5
35-54 3.5-5.5
03
22
74 7.5
54-93 5.5-9.5
24
78 8.0
59-98 6.0-10.0
04 27
103 10.5
84-132 8.5-13.5
05 32
157 16.0
128-186 13.0-19.0
06 36
216 22.0
177-245 18.0-25.0
Fig. 5-22