Installation Instructions

ManualsBrandsKubota ManualsMiscellaneousB2400

B1700·B2100·B2400 WSM, 11770

o

to

0.3mm

0087F072

0087F073

1

ENGINE

Replacing Crankshaft Bearing 1

(When removing)

1.

Press

out

the bearing 1

with

crankshaft bearing 1 replacing

tool.

(When installing)

1.

Clean a

new

bearing 1 and bore, and apply engine

oil

to

them.

2.

Press

fit

a new bearing 1 using a inserting

tool,

taking due

care

to

see

that

the

seam

of

bearing 1 faces

the

exhaust

manifold side.

(1)

Seam

Oil Clearance between Crankshaft Journals and Crankshaft

Bearings 2

1.

Paste

a

press

gauge

with

grease on

the

crankshaft bearing.

2.

Tighten the crankshaft bearing

case

onto

the

crankshaft

journal

to

the specified torque (46.1

to

50.9 N·m, 4.7

to

5.2

kgf·m, 34.0

to

37.6 ft-Ibs).

3.

Detach the bearing

case

slowly, and measure

the

depression

of

the

press

gauge

with

a sheet

of

gauge (paper).

4.

If

the

measurement exceeds the allowable

limit,

replace

the

crankshaft bearing

2.

5.

If

the

crankshaft

journal

0.0.

exceeds

the

factory

specification, machine the crankshaft

journal,

and

use

an

undersize crankshaft bearing

2.

Oil clearance between Factory spec.

0.034toO.095

mm

cra

nkshaft

~ou

rna I

0.00134

to

0.00374 in.

and cranks

aft

0.20 mm

bearing 2

Allowable

limit

0.0079in.

Cra

nkshaft journa I

Factory spec.

47.934to47.950

mm

0.0.

1.88717

to

1.88780 in.

Cra

nkshaft bea

ri

ng 2

Factory spec.

47.984to

48.029 mm

1.0. 1.88913to1.89091 in.

Flywheel Sway and Crankshaft Side Clearance

1.

Set

a dial indicator

with

its

tip

on the rear friction face

of

the

flywheel near

the

edge.

2.

Turn the flywheel and measure the sway.

3.

If

the

measurement exceeds the allowable

limit,

remove

the

flywheel and check

the

contact faces

of

the

crankshaft and

flywheel.

4.

Move

the

crankshaft

with

flywheel back and

forth

to

each

end and measure the side clearance.

5.

If

the side clearance exceeds the allowable

limit,

replace

the

side bearing.

6.

If

an oversize bearing

is

to

be

used,

machine the crankshaft.

Flywheel sway

Allowable

limit

0.05 mm

0.0020 in.

Factory spec.

0.15toO.31 mm

Crankshaft side

0.0059

to

0.0122 in.

clearance

0.50 mm

Allowable

limit

0.0197in.

1-541