Kubota RTV1140CPX, Workshop Manual

Page: 121 / 379

ENGINE
RTV1140CPX, WSM
1-S38
Crankshaft Assembly
1. Remove the main bearing case screw 2 (1).
2. Pull out the crankshaft assembly.
IMPORTANT
• Take care to protect crankshaft bearing 1 from scratches,
caused by the crank gear, etc.. (Wrap the gear in vinyl tape,
etc.)
(When reassembling)
• Clean the oil passage of the crankshaft with compressed air.
• Apply oil to the main bearing case screw 2 (1).
• Install the crankshaft assembly, aligning the screw hole of main
bearing case with the screw hole of crankcase.
• Clean the oil passage of the crankshaft with compressed air.
9Y1210293ENS0061US0
Main Bearing Case Assembly
1. Remove the two main bearing case screws 1 (2) of each main
bearing cases.
2. Remove the main bearing case from crankshaft.
(When reassembling)
• Clean the oil passage in the main bearing cases.
• 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
(b) from the gear case side.
• Match the alignment numbers (a) on the main bearing case
assembly 1
• When installing the main bearing case 1 and 2, face the mark
"FLYWHEEL" to the flywheel.
• Install the thrust bearing (3) 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.
9Y1210293ENS0062US0
Tightening torque Main bearing case screw 2
49 to 53 N·m
5.0 to 5.5 kgf·m
37 to 39 lbf·ft
(1) Main Bearing Case Screw 2
Tightening torque Main bearing case screw 1
30 to 34 N·m
3.0 to 3.5 kgf·m
22 to 25 lbf·ft
(1) Main Bearing Case Assembly 1
(2) Main Bearing Case Screw 1
(3) Thrust Bearing (a) Alignment Number
(b) Marking (A, B, C)
KiSC issued 05, 2014 A