Caterpillar — Turbocharger - Clean (Cleaning with Dry Particles)

Maintenance

From a Caterpillar owner's manual covering: 1YG1-Up, 4CG1-Up, G3612, G3616. Check it applies to your exact model before use.

Applies to: Caterpillar G3612, Caterpillar G3616

Procedure

1. Ensure purge valve (2) is closed. Ensure cap (3) secure. Open gate valve (4).
2. Open air valve (1) to remove deposits from connecting pipe. After three minutes, close air valve (1). Close gate valve (4).
3. Open purge valve (2) to relieve pressure. Close purge valve (2).
4. Remove cap (3). Pour 0.5 L (0.5 qt) of particles into container. Tighten cap (3).
5. Ensure purge valve (2) closed. Reduce engine output so exhaust temperature before turbine is less than 577 °C (1070 °F).
6. Open gate valve (4). Open air valve (1).
7. After 60 to 90 seconds, close air valve (1). Close gate valve (4).
8. Open purge valve (2) to relieve pressure. Close purge valve (2).

Source: Caterpillar owner's 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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