ENGINE
L4100, WSM
1-S39
(EU)
Crankshaft
NOTE
• Before disassembling, check the side clearance of
crankshaft. Also check it during reassembling.
1. Remove the main bearing case screw 2 (1).
2. Pull out the crankshaft assembly, taking care not to damage the
crankshaft bearing 1.
(When reassembling)
IMPORTANT
• Install the crankshaft sub assembly, aligning the screw
hole of main bearing case 2 with the screw hole of cylinder
block.
• When tightening the main bearing case screw 2, apply oil to
the screw and screw by hand before tightening the specific
torque.
If not smooth to screw by hand, align the screw holes
between the cylinder block and the main bearing case.
9Y1210278ENS0055US0
Main Bearing Case Assembly
1. Remove the two main bearing case screws 1, and remove the
main bearing case assembly (2) being careful with thrust
bearing (3) and crankshaft bearing 2.
2. Remove the main bearing case 1, 2 and 3.
(When reassembling)
• Clean the oil passage in the main bearing case.
• Apply clean engine oil on the bearings.
• Install the main bearing case assemblies in the original
positions. Since diameters of main bearing cases vary, install
them in order of makings
(A, B, C)
from the gear case side.
• Match the alignment numbers (4) and mark (5) on the main
bearing case.
• When installing the main bearing case 1, 2 and 3, face the mark
"FLYWHEEL"
to the flywheel.
• Install the thrust bearing with its oil groove facing outward.
• Confirm that the main bearing case moves smoothly after
tightening the main bearing case screw 1 to the specified
torque.
9Y1210278ENS0056US0
Tightening torque
Main bearing case screw 2
69 to 73 N·m
7.0 to 7.5 kgf·m
51 to 54 lbf·ft
(1) Main Bearing Case Screw 2
Tightening torque
Main bearing case screw 1
46 to 50 N·m
4.7 to 5.2 kgf·m
34 to 37 lbf·ft
(1) Main Bearing Case Assembly 1, 2
and 3
(2) Main Bearing Case Assembly
(3) Thrust Bearing
(4) Alignment Number
(5) Alignment Mark
KiSC issued 08, 2012 A
Summary of Contents for Kubota L4100
Page 1: ...L4100 WORKSHOP MANUAL TRACTOR KiSC issued 08 2012 A...
Page 3: ...I INFORMATION KiSC issued 08 2012 A...
Page 9: ...INFORMATION L4100 WSM I 5 EU 9Y1210278INI0002US0 KiSC issued 08 2012 A...
Page 13: ...INFORMATION L4100 WSM I 9 EU Mid mount type ROPS 9Y1210278INI0006US0 KiSC issued 08 2012 A...
Page 14: ...G GENERAL KiSC issued 08 2012 A...
Page 67: ...1 ENGINE KiSC issued 08 2012 A...
Page 130: ...2 CLUTCH KiSC issued 08 2012 A...
Page 160: ...3 TRANSMISSION KiSC issued 08 2012 A...
Page 161: ...CONTENTS 1 STRUCTURE 3 M1 MECHANISM KiSC issued 08 2012 A...
Page 201: ...4 REAR AXLE KiSC issued 08 2012 A...
Page 202: ...CONTENTS 1 STRUCTURE 4 M1 MECHANISM KiSC issued 08 2012 A...
Page 210: ...5 BRAKES KiSC issued 08 2012 A...
Page 211: ...CONTENTS 1 STRUCTURE 5 M1 2 OPERATION 5 M2 MECHANISM KiSC issued 08 2012 A...
Page 224: ...6 FRONT AXLE KiSC issued 08 2012 A...
Page 225: ...CONTENTS 1 STRUCTURE 6 M1 2 FRONT WHEEL ALIGNMENT 6 M2 MECHANISM KiSC issued 08 2012 A...
Page 245: ...7 STEERING KiSC issued 08 2012 A...
Page 264: ...8 HYDRAULIC SYSTEM KiSC issued 08 2012 A...