Komatsu 114E-3 Series Shop Manual page 324

SEN00464-01
2) Tightening order of bolts
Tighten the bolts in the numerical order
shown below: [1]
3
Mounting bolt:
3) After installing the flywheel housing, mea-
sure the radial runout and facial runout
with tool L.
Radial runout: Max. 0.20 mm
q
Facial runout: Max. 0.20 mm
q
Measuring radial runout
q
1) Install tool L to the crankshaft end.
2) Set the probe of the dial gauge per-
pendicular to the spigot joint portion
of the flywheel housing.
3) Set the dial gauge reading to "0",
rotate the crankshaft by 1 turn, and
measure the difference between the
indicated lowest and highest values.
a After the crankshaft is rotated by 1
turn, check that the dial gauge indi-
cates the value at the start of rotation.
16
→ [12]
77 ± 12 Nm {7.9 ± 1.2 kgm}
50 Disassembly and assembly
Measuring facial runout
q
1) Similarly to measurement of the radial
runout, set the probe of the dial
gauge perpendicular to the end face
of the flywheel housing.
a When
crankshaft to the front or rear
side so that an error will not be
caused by the end play.
2) Set the dial gauge reading to "0",
rotate the crankshaft by 1 turn, and
measure the difference between the
indicated lowest and highest values.
18. Flywheel
1) Install guide bolt [1] and flywheel (1).
Apply a string of gasket sealant 1 – 3
q
mm in diameter around the bolt holes
on the crankshaft mounting face (8
places).
2
Flywheel mounting face:
4
Flywheel assembly: 40 kg
measuring, bring the
Gasket sealant (LG-7)
114E-3 Series