Replacing The Damper Assembly On The Engine Crankshaft
Usage:
EXCAVATORS330 B L (6DR) EXCAVATORS
Problem:
The damper assembly on the engine crankshaft may not exhibit desirable service life on certain Excavators. Typical symptoms reported include: excessive run out, rubber separation, out of alignment, and bonding agent loosening.
Solution:
When the replacement of the 4W-2446 Damper Assembly is necessary, replace it with a new 167-8123 Damper Assembly. Retain and reuse the 0S-1587 Bolts from the 4W-2446 Damper Assembly. Add one 5P-8245 Hard Washer to each of the six bolts when the new damper is assembled to the crankshaft. The new damper assembly has demonstrated improved durability in other engine applications.
Typical Front View of an Engine
Illustration 1.
Typical Damper Group
Illustration 2.
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