D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
59
Printed in Jan. 2001 PS-MMA0415-E1A
0.05 mm 0.2 mm
3.2.5. Crankshaft
(1) Inspection of crankshaft
1) Defect check
z By naked eyes, check for any
scratch or damage on the
crankshaft journal and crank pin.
z By means of magnetic particle test
and color check, check the
crankshaft for any crack and if
found, replace it.
2) Wear measuring
z With an outside micrometer measure
the diameter of the crankshaft journals
and pins in the directions as shown,
and compare the measured values to
determine the amount of wear.
z If the amount of wear is beyond the
limit, have the crankshaft ground and
install undersize bearings. However, if
the amount of wear is within the limit,
you can correct the wear using an oil
stone or oiled grinding paper of fine
grain size. (Be sure to use grinding
paper which has been immersed in
oil.)
Standard
Limit
Journal diameter
φ83.966 ∼ φ83.988 mm φ83.000 mm
Pin diameter
φ70.971 ∼ φ70.990 mm φ70.000 mm
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