Takeuchi TB23R Workshop Manual page 16

Bolts and Nuts (for ISO Strength Category 10.9)
Thread Size × Pitch
M 6 × 1.0
M 8 × 1.25
M10 × 1.5
Coarse M12 × 1.75
M14 × 2.0
M16 × 2.0 207.9 ±10.4
M20 × 2.5 410.9 ±20.5
M 8 × 1.0
M10 × 1.25
M12 × 1.5
Fine
M14 × 1.5
M16 × 1.5 220.6 ±11.0
M20 × 1.5 452.1 ±22.6
1. General Tightening Points (Non-lubricated)
• All securing points other than the special
tightening points.
2. Special Tightening Points (Grease with molyb-
denum disulfide applied.)
• Points where particularly necessary due to
function.
Special tightening positions and associated
instructions are given in the text.
3. Points where thread-locking compound is used
(Three Bond #1324 is applied.)
Thread-locking compound positions and associ-
ated instructions are given in the text.
General Tightening Points
N·m kgf·m
9.8 ±0.5 1.0 ±0.05
22.6 ±1.1 2.3 ±0.11
47.1 ±2.4 4.8 ±0.24
83.4 ±4.1 8.5 ±0.42
134.4 ±6.7 13.7 ±0.68
21.2 ±1.06
41.9 ±2.09
24.5 ±1.2 2.5 ±0.12
50.0 ±2.5 5.1 ±0.25
87.3 ±4.3 8.9 ±0.44
135.3 ±6.8 13.8 ±0.69
22.5 ±1.12
46.1 ±2.30
Torque
ft-lb N·m
7.2 ±0.4 11.8 ±0.6
16.6 ±0.8 26.5 ±1.3
34.7 ±1.7 54.9 ±2.7
61.5 ±3.0 97.1 ±4.8
99.1 ±4.9 155.9 ±7.7
153.3 ±7.7 241.2 ±12.1
303.1 ±15.1 475.6 ±23.7
18.1 ±0.9 28.4 ±1.4
36.9 ±1.8 58.8 ±2.9
64.4 ±3.2 102.0 ±5.1
99.9 ±5.0 157.9 ±7.8
162.7 ±8.1 256.0 ±12.7
333.4 ±16.6 524.7 ±26.1
4. If tightening torque values are provided in this
manual, then tightening should be done accord-
ing to those values.
(This indicates that the tightening torque differs
from the values given in this table.)
5. In order to tighten bolts and nuts evenly, they
should be tightened alternately top, bottom, left,
right.
I-13
GENERAL
Special Tightening Points
kgf·m
1.2 ±0.06 8.7 ±0.4
2.7 ±0.13 19.5 ±0.9
5.6 ±0.28 40.5 ±2.0
9.9 ±0.49 71.6 ±3.5
15.9 ±0.79 115.0 ±5.7
24.6 ±1.23 177.9 ±8.9
48.5 ±2.42 350.8 ±17.5
2.9 ±0.14 21.0 ±1.0
6.0 ±0.30 43.4 ±2.2
10.4 ±0.52 75.2 ±3.8
16.1 ±0.80 116.5 ±5.8
26.1 ±1.30 188.8 ±9.4
53.5 ±2.66 387.0 ±19.2
ft-lb