RING-BACKUP 7Y4941 - Caterpillar

Removal Procedure
Start By:
Remove the air cleaner. Refer to Disassembly and Assembly, "Air Cleaner - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Drain the coolant from the cooling system into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
Illustration 1 g00619378
Remove bolts (1) and (3). Remove top of shield (2).
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Remove clamp (5). Remove tube assembly (6) from both turbochargers.
Remove shield (4).
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Remove tube assembly (7) from the turbocharger.
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Remove tube assembly (8).
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Remove cover (9). Disconnect thermocouple (10).
Remove the remaining shields from the turbochargers.
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Remove bolts (11) from the exhaust inlet to the turbocharger.
Disconnect tube assembly (12).
Remove bolts (13) from the air outlet of the turbocharger.
Illustration 7 g00619432
Attach a suitable lifting device onto turbocharger (15). The weight of turbocharger (15) is approximately 65 kg (143 lb).
Remove bolts (14) that attach turbocharger (15) to the exhaust elbow. Remove turbocharger (15).