Checking Crankshaft - Iveco daily euro 4 Repair Manual

234
F1C ENGINE

Checking crankshaft

Figure 125
TOLERANCES
SHAPE SHAPE
ORIENTATION ORIENTATION
POSITION
OSCILLATION OSCILLATION
CLASS OF IMPORTANCE ATTRIBUTED TO PRODUCT CHARACTERISTICS
CRITICAL
IMPORTANT
SECONDARY
Figure 126
Base - March 2006
MAIN CRANKSHAFT TOLERANCES
TOLERANCE CHARACTERISTIC
Circularity
Cylindricality
Parallelism
Perpendicularity
Concentricity or coaxiality
Circular oscillation
Total oscillation
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NOTE The checks on the tolerances indicated in the
figures must be made after grinding the crankshaft
pins.
SYMMETRY BETWEEN
CRANKPINS
1. Crankpins
2. Main journals
3. Normal position
After grinding, keep to the following:
- Round off the edges of deburring the holes for
lubrication of the main journals and crankpins.
D E
AILY URO
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GRAPHIC SYMBOL
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