COLLET 1635843 - Caterpillar

Removal Procedure
Start By:
Remove the crankshaft. Refer to Disassembly and Assembly, "Crankshaft - Remove ".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Do not apply heat to the crankshaft. Apply heat to the crankshaft timing ring only.
Illustration 1 g00946389
Support the crankshaft (3) in a vertical position with the crankshaft flange at the bottom. Note: If a crankshaft wear sleeve is installed on the crankshaft, the shoulder of the crankshaft wear sleeve must be removed in order to provide clearance for removing the crankshaft timing ring.
Apply heat to the crankshaft timing ring (1). The temperature must not exceed 270 °C (518 °F). Remove the crankshaft timing ring from the crankshaft.
Allow the crankshaft timing ring to cool. Discard the crankshaft timing ring. Note: Do not remove the dowel (2) from the crankshaft, unless the dowel has been damaged.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Heat the crankshaft timing ring in an oven to 250 °C (482 °F).
Illustration 2 g00946389
If the dowel (2) was removed, install a new dowel in the flange of the crankshaft (3).
Support the crankshaft in a vertical position with the crankshaft flange up.
Position the crankshaft timing ring with the chamfer and the groove toward the crankshaft web. Align the dowel (2) in the crankshaft with the hole in the crankshaft timing ring (1). Immediately install the crankshaft timing ring against the web of the crankshaft.
Allow the crankshaft timing ring to cool. End By:
Install the crankshaft. Refer to Disassembly and Assembly, "Crankshaft - Install ".