Tightening Torques - Kubota B1830 Workshop Manual

B1830,B2230,B2530,B3030, WSM

3. TIGHTENING TORQUES

Tightening torque of screws, bolts and nuts on the table below are specially specified. (For general use screws,
bolts and nuts: See page "5. TIGHTENING TORQUES" on page G-10.)
NOTE
• In removing and applying the bolts and nuts marked with "*", a pneumatic wrench or similar pneumatic
tool, if employed, must be used with enough care not to get them seized.
• For "*" marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before
tightening.
• The letter "M" in Size × 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.
[1] TRACTOR SECTION
Steering wheel mounting nut
Cabin mounting bolts and nuts (M14)
Cabin support mounting bolt
ROPS mounting bolt (for middle and lower frame
9/16-18UNF)
ROPS mounting bolt (M12)
Sub-frame mounting bolt (M10) for aluminum
Sub-frame mounting bolt (M12) for aluminum
Sub-frame mounting bolt for ordinary material (M12)
Sub-frame mounting bolt for ordinary material (M14)
Engine and front case mounting bolt and nut (M8)
Engine and front case mounting stud bolt (M10)
Engine and front axle frame mounting bolt (M10)
Item N·m
29.4 to 49.0
100 to 120
100 to 110
124 to 147
90 to 95
39.3 to 45.1
62.8 to 72.5
77.5 to 90.2
126 to 150
23.6 to 27.4
48.1 to 55.8
48.1 to 55.8
1-S10
9Y1210003ENS0003US0
kgf·m lbf·ft
3.0 to 5.0 21.7 to 36.2
10.2 to 12.2 73.8 to 88.5
10.2 to 11.2 73.8 to 81.1
12.6 to 15.0 91.2 to 108
9.2 to 9.7 66.4 to 70.1
4.0 to 4.6 29.0 to 33.2
6.4 to 7.4 46.3 to 53.5
7.9 to 9.2 57.2 to 66.5
12.9 to 15.3 93 to 111
2.4 to 2.8 17.4 to 20.2
4.9 to 5.7 35.5 to 41.2
4.9 to 5.7 35.5 to 41.2
9Y1210003ENS0004US0
KiSC issued 05, 2012 A
ENGINE