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Explanatory notes regarding diagram
Crack test
Clean crankshaft. The bearing journals must be
free of oil and grease.
Magnetize crankshaft and apply fluorescent
powder (flux).
A dye penetration method (immersing in bath or
with spray can) may also be used.
Helpful tools:
die, UV oil or fluorescent
powder,
cleaning agent,
developer
Hardness test
Test hardness with the drop hardness tester
(scleroscopic hardness).
The minimum hardness of 60 must exist at
Hardening
The journals without hardened radii may be
hardened inductively or with a flame. By
contrast, the journals with hardened radii
(arrows) must always be hardened inductively.
If this is not possible, scrap crankshaft.
When hardening the journals without hardened
radii, it is important to adhere to the distance A
between hardening runout and radius
(4 - 5 mm).
030905 - 31w
EXIT
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