Caterpillar — Refer to Special Publication, NENG2500, "Dealer Service Tool

A Caterpillar service procedure — check it applies to your exact model before use.

Procedure

1. Thoroughly clean the outer surfaces of the turbocharger (1).
2. Loosen the hose clamps and remove the air inlet hose at the turbocharger compressor
3. Remove the exhaust pipe from the turbocharger outlet or remove the exhaust pipe from the
4. Remove the setscrews (5) from the exhaust elbow (3), if equipped.
5. Remove the setscrews (6) and remove the bracket (4) from the cylinder block.
6. If equipped, remove the exhaust elbow (3) from the exhaust adapter (1).
7. Remove the nuts (2) and remove the exhaust adapter (1) from the turbocharger.
8. Place a suitable container below the turbocharger (1) in order to collect any spillage of oil.
9. Remove the banjo bolt (10). Remove the oil supply tube assembly (12) and the washers (11)
10. Remove the setscrews (17). Remove the oil drain tube assembly (18) from the turbocharger.
11. If necessary, remove the studs (8) from the turbocharger housing.
12. Remove the nuts (15). Remove the turbocharger (7). Remove the gasket (9). Discard the
13. Plug the oil supply and the oil drain ports of the turbocharger. Install covers on the manifold

Source: manual:SM-Caterpillar-Cat-3054C-INDUSTRIAL-ENGINE-33400001.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.