Caterpillar — Alignment Of Electric Sets Without Supports At The Flywheel Housing

Adjustments

From a Caterpillar service manual covering: 3208, 3304, 3306B, 3406, 3408C, 3412, 3412C, 3508, 3512, 3516, D330, D333…. Check it applies to your exact model before use.

Applies to: Caterpillar 3208, Caterpillar 3304, Caterpillar 3306B, Caterpillar 3406, Caterpillar 3408C, Caterpillar 3412, Caterpillar 3412C, Caterpillar 3508, Caterpillar 3512, Caterpillar 3516

Procedure

1. Loosen all bolts connecting base to foundation; loosen all bolts fastening generator supports and engine supports to base.
2. Ensure clearance between bolts and bolt holes in base, engine supports, generator supports at all locations.
3. Check clearance between base and foundation at all mounting locations; use shims to prevent base deflection; tighten base-to-foundation bolts to final torque.
4. Check clearance between base and engine, base and engine supports, base and generator supports over entire length; use shims to prevent support deflection; tighten all mounting bolts to final torque.

Full service-parts list: Caterpillar 3208 →, Caterpillar 3304 →, Caterpillar 3406 →, Caterpillar 3408C →, Caterpillar 3412 →, Caterpillar 3412C →, Caterpillar 3508 →, Caterpillar 3512 →, Caterpillar 3516 →

Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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