Hino S5-LJ05E04A, Руководство по ремонту

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ENGINE MECHANICAL (J05E) 10–108
5. INSPECTING WEAR IN CRANK PINS
(1) Use the micrometer to measure an outer diameter of a crank pin
on the crankshaft. If a measurement reading exceeds the permis-
sible limit, grind or replace the crankshaft.
! CAUTION
•
If the crankshaft is ground, use an undersize bearing.
• If uneven wear is 0.1 mm {0.0039 in.} or larger, regrind for
correction. If wear is 0.2 mm {0.0079 in.} or larger, regrind. If
wear is 0.7 mm {0.0276 in.} or larger, replace the crankshaft.
NOTICE
When grinding the crankshaft, adjust a fillet radius dimension as
indicated below.
Crank pins: 2.5-3.0 mm {0.0984-0.1181 in.}
Journals: 2.5-3.0 mm {0.0984-0.1181 in.}
6. INSPECTING THE LENGTH OF MAIN BEARING CAP BOLT
(1) Use the vernier calipers to measure the under head of the main
bearing cap bolt. If a measurement reading exceeds the permissi-
ble limit, replace the bolt.
90
MEASUREMENT
(2 PLACES)
SHTS021270900256
Standard value (mm {in.})
Permissible limit
(mm {in.})
65.0 {2.560} 64.3 {2.531}
IMPERFECT
CURVATURE
RADIUS
㧾
SMALL
CURVATURE
RADIUS
STEPPED
STEPPED
GOOD BAD
SHTS021270900257
SHANK LENGTH
SHTS021270900258
Standard value (mm {in.})
Permissible limit
(mm {in.})
106.8 {4.205} 108.0 {4.252}