1-S11
L3130 · L3430 · L3830 · L4630 · L5030, WSM
ENGINE
3. TIGHTENING TORQUES
Tightening torques of screws, bolts and nuts on the table below are especially specified.
(For general use screws, bolts and nuts : See page G-10.)
W1012736
• For * marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before
tightening.
• The letter “M” in Size x Pitch means that the screw, bolt or nut dimension stands for metric. The size is
the nominal outside diameter in mm of the threads. The pitch is the nominal distance in mm between two
threads.
W1013236
Item N·m kgf·m ft-lbs
Lower frame mounting screw
ROPS lower connector mounting screw
ROPS plate mounting screw (M14 × 40)
(M14 × 30)
Step mounting bolt and nut
Floor seat mounting bolt and nut
Compressor mounting screw
Muffler mounting screw
Cabin mounting bolt and nut
Joint bolt for main delivery pipe 1
Joint bolt for PTO delivery pipe
Joint bolt for oil cooler pipe
Engine and clutch housing mounting screw and nut
Engine and clutch housing mounting stud bolt
Joint bolt for power steering delivery pipe
Cap nut of power steering delivery pipe
Front axle frame mounting screw (7T)
(9T)
Alternator mounting screw (M10)
Tension adjusting screw (M8)
Clutch mounting screw
260 to 304
103 to 118
138 to 147
167 to 196
124 to 147
196 to 225
24.5 to 29.4
31.4 to 37.2
124 to 147
49 to 69
34 to 39
34 to 39
77.5 to 90.2
39.2 to 49.0
39.2 to 49.0
49.0 to 58.8
77.5 to 90.2
102.9 to 117.6
39.2 to 44.1
17.6 to 20.6
23.5 to 27.5
26.5 to 31.0
10.5 to 12.0
14.0 to 15.0
17.0 to 20.0
12.6 to 15.0
20 to 23
2.5 to 3.0
3.2 to 3.8
12.6 to 15.0
5.0 to 7.0
3.5 to 4.0
3.5 to 4.0
7.9 to 9.2
4.0 to 5.0
4.0 to 5.0
5.0 to 6.0
7.9 to 9.2
10.5 to 12.0
4.0 to 4.5
1.8 to 2.1
2.4 to 2.8
192 to 224
75.9 to 86.8
102 to 108
123 to 145
91.1 to 108
145 to 166
18.1 to 21.7
23.1 to 27.5
91.1 to 108
36.1 to 50.6
25.3 to 28.9
25.3 to 28.9
57.1 to 66.5
28.9 to 36.2
28.9 to 36.1
36.1 to 43.4
57.1 to 66.5
76.0 to 86.8
28.9 to 32.5
13.0 to 15.2
17.4 to 20.3
Item Size x Pitch N·m kgf·m ft-lbs
* Cylinder head screws
Cylinder head cover screw
Injection pipe retaining nuts
Nozzle holder assembly
Overflow pipe assembly retaining nuts
Glow plugs
* Rocker arm bracket nut
Hi-idling body
Fan drive pulley mounting nut
Camshaft set bolt
Balancer shaft set bolt
* Connecting rod screws
* Flywheel screws
* Bearing case cover screws
* Main bearing case screws 2
* Main bearing case screws 1
M11 × 1.25
M6 × 1.0
M12 × 1.5
M20 × 2.0
–
M10 × 1.25
M8 × 1.25
–
–
M8 × 1.25
M8 × 1.25
M8 × 1.0
M12 × 1.25
M8 × 1.25
M10 × 1.25
M9 × 1.25
93.1 to 98.0
6.9 to 11.3
24.5 to 34.3
49.0 to 68.6
19.6 to 24.5
19.6 to 24.5
23.5 to 27.5
44.1 to 49.0
137.3 to 156.9
23.5 to 27.5
23.5 to 27.5
44.1 to 49.0
98.0 to 107.8
23.5 to 27.5
68.6 to 73.5
46.1 to 50.9
9.5 to 10.0
0.7 to 1.15
2.5 to 3.5
5.0 to 7.0
2.0 to 2.5
2.0 to 2.5
2.4 to 2.8
4.5 to 5.0
14.0 to 16.0
2.4 to 2.8
2.4 to 2.8
4.5 to 5.0
10.0 to 11.0
2.4 to 2.8
7.0 to 7.5
4.7 to 5.2
68.7 to 72.3
5.1 to 8.32
18.1 to 25.3
36.2 to 50.6
14.5 to 18.1
17.4 to 20.3
14.5 to 18.1
32.6 to 36.3
101.3 to 115.7
17.4 to 20.3
17.4 to 20.3
32.5 to 36.2
72.3 to 79.5
17.4 to 20.3
50.6 to 54.2
34.0 to 37.6
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