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CUMMINS ISX12 - Disassembly and Reassembly Notes; Snap Ring and Piston Pin Removal; Piston and Connecting Rod Re-use

CUMMINS ISX12
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Disassemble
Clean and Inspect for Reuse
connecting rods must only be handled if the two pieces of the
connecting rod are tightened to the correct specification or are
completely separated.
Use internal snap ring pliers to remove the snap rings from
both sides of the piston.
Note : If the piston is being replaced, the piston pin
must also be replaced.
CAUTION
Do not use a hammer to remove the piston pins. The piston
can distort, causing it to seize in the liner.
If the piston pin can not be easily removed by hand, place the
piston and connecting rod assembly in a container of water.
Heat the piston in boiling water for 15 minutes.
Use a blunt tool to push the piston pin from the piston and
connecting rod assembly.
The piston and connecting rod assemblies must be installed in
the same cylinder from which they were removed to provide for
proper fit of worn mating surfaces if parts are reused.
Use a tag to mark the cylinder number from which each piston
and connecting rod assembly was removed.

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