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3. Hydraulic pipe tightening torque
Steel pipe size (mm)
(O.D. x I.D. x Thickness)
8 x 6 x t1
10 x 7 x t1.5
12 x 9 x t1.5
16 x 12 x t2
18 x 14 x t2
27.2 x 21.6 x t2.8
4. Hydraulic hose tightening torque
Thread size
(piping thread)
1/8"
7.8 ~ 11.8 (0.8 ~ 1.2)
1/4"
24.5 ~ 29.4 (2.5 ~ 3.0)
3/8"
37.2 ~ 42.1 (3.8 ~ 4.3)
1/2"
58.8 ~ 63.7 (6.0 ~ 6.5)
3/4"
117.7 ~ 127.5 (12.0 ~ 13.0)
Note: * Wrench width may vary depending on the manufacturer, thread diameter and other factors.
5. Engine
Engine model
Cylinder head cover
Nozzle holder
Rocker arm bracket nut
Cylinder head cover
Connecting rod bolt
Flywheel
Bg case bolt 1
Bg case bolt 2
Bearing case cover bolt
Hose clamp (threaded type)
Part code
09318-89016
09318-89039
09318-89045
RB101-63631
RC101-64581
68311-72821
RC411-63181
RC401-63191
69284-63171
RD411-63821
Tightening torque
N·m (kgf·m)
29.4 ~ 39.2 (3.0 ~ 4.0)
39.2 ~ 44.1 (4.0 ~ 4.5)
53.9 ~ 63.7 (5.5 ~ 6.5)
88.3 ~ 98.1 (9.0 ~ 10.0)
127.5 ~ 137.3(13.0 ~ 14.0)
235.4 ~ 255.0(24.0 ~ 26.0)
Tightening torque N·m (kgf·m)
Union nut
19.6 ~ 29.4 (2.0 ~ 3.0)
36.3 ~ 44.1 (3.7 ~ 4.5)
68.6 ~ 73.5 (7.0 ~ 7.5)
83.4 ~ 88.3 (8.5 ~ 9.0)
166.6 ~ 181.3 (17.0 ~ 18.5)
N·m (kgf·m)
D782
4.9 (0.5)
58.8 (6.0)
10.8 (1.1)
40.2 (4.1)
28.4 (2.9)
56.9 (5.8)
14.7 (1.5)
28.4 (2.9)
10.8 (1.1)
Applicable diameter (mm)
12 ~ 16
31 ~ 40
36 ~ 46
13 ~ 20
15 ~ 25
26 ~ 38
40 ~ 55
50 ~ 60
77 ~ 95
32 ~ 44
Wrench width (mm)
[Reference]
*17
*19
*21
*29
*32
*41
Wrench width
Taper thread
*17
*19
*22
*27
*36
Tightening torque
2.5 ~ 3.4
2.5 ~ 3.4
2.5 ~ 3.4
3.4 ~ 4.4
4.9 ~ 5.9
4.9 ~ 5.9
4.9 ~ 5.9
4.9 ~ 5.9
4.9 ~ 5.9
4.9 ~ 5.9
II-5
WSM U15-3
Remarks
* Ihara-made sleeve nuts
Remarks
[Reference]
N·m (kgf·cm)
(25 ~ 35)
(25 ~ 35)
(25 ~ 35)
(35 ~ 45)
(50 ~ 60)
(50 ~ 60)
(50 ~ 60)
(50 ~ 60)
(50 ~ 60)
(50 ~ 60)
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