Komatsu PC200-8M0, Руководство по ремонту

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SEN06143-00
50-200
20
PC200, 200LC, 220, 220LC-8M0
200 Engine and cooling system
Removal and installation of engine rear oil seal
q
Carry out the rest of installation in the reverse
order to removal.
[*1]
a
Tighten the 8 flywheel mounting bolts in the
order of (1) through (8) as shown in the figure
below.
3 Flywheel assembly mounting bolt:
137 ± 7 Nm {13.97 ± 0.71 kgm}
a
Tighten the bolts using plate [3] for preventing
rotation of the flywheel assembly.
[*2]
q Measurement of radial runout
a
Radial runout: less than 0.13 mm
1) Set dial gauge [4] to the stand, and set it
to flywheel housing (7).
2) Bring the dial gauge probe into contact
with faucet joint portion (a) or the outer
perimeter surface of the flywheel at a right
angle.
3) Rotate the flywheel 360° and measure the
difference of the maximum swing of the
dial gauge indicator.
a
Check that the dial gauge indicator is
back in the original position after the
flywheel is rotated 360°.
q
Measurement of facial runout
a
Facial runout: less than 0.20 mm
1) As in the case of measurement of facial
runout, bring the dial gauge probe into
contact with end surface (b) near the outer
perimeter of the flywheel at a right angle.
a
Conduct measurement pulling the
crankshaft to either the front or rear
side to prevent errors caused by
shakiness.
2) Rotate the flywheel 360° and measure the
difference of the maximum swing of the
dial gauge indicator.