Kubota M5640SU Workshop Manual page 131

M5640SU, M5640DT-SU, WSM
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. Turn the crankshaft to set the crank pin of the 4th cylinder to the
horizontal directions (Right or Left). Then draw out all the
crankshaft, holding the crank pins to the horizontal directions
(Right or Left).
(When reassembling)
IMPORTANT
• Install the crankshaft sub assembly, aligning the screw
hole of main bearing case 2 (2) with the screw hole of
cylinder block.
• When tightening the main bearing case screw 2 (1), 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.
Main bearing case screws
Tightening torque
2
(1) Main Bearing Case Screw 2
(2) Main Bearing Case 2
(3) Crankshaft Bearing 1
1-S43
ENGINE
69 to 73 N·m
7.0 to 7.5 kgf·m
51 to 54 lbf·ft
(a) Cut place for removing and
installing the crankshaft
[A] D1803-M
9Y1210365ENS0102US0
KiSC issued 07, 2009 A