TORQUE CONVERTER 6V5412 - Caterpillar

Note: Use of a platform may be necessary to reach the turbocharger.If the engine has more than one turbocharger, each turbocharger requires cleaning.Note: The drain openings in the exhaust housing of the turbocharger are closed during the cleaning procedure. Some of the particles will be expelled through the exhaust stack. The particles that are expelled will be burned.The materials that are listed in Table 1 are recommended for use with this cleaning procedure.
Table 1
Materials for Cleaning 3600 Engine Turbochargers    
Material     Particle Size    
Nut shell    
1.7 mm (1/16 inch)    
Formed carbon    
1 mm (1/32 inch)    
Granulated carbon (70% hardness)    
1.2 to 2 mm (3/64 to 5/64 inch)    
Granulated dry rice    
1.7 mm (1/16 inch)    
Illustration 1 g00833073
(1) Air valve (2) Purge valve (3) Cap (4) Gate valveNote: During normal engine operation, air valve (1), purge valve (2), and gate valve (4) are closed.
Ensure that purge valve (2) is closed. Ensure that cap (3) is secure. Open gate valve (4) .
Open air valve (1) in order to remove deposits that may be in the connecting pipe. After three minutes, close air valve (1). Close gate valve (4) .
Open purge valve (2) in order to relieve any pressure from the container. Close purge valve (2) .
Remove cap (3). Pour 0.5 L (0.5 qt) of the particles into the container. Tighten cap (3) .
Ensure that purge valve (2) is closed. Reduce the output of the engine so that the exhaust temperature before the turbine is less than 577 °C (1070 °F).
Open gate valve (4). Open air valve (1) .
After 60 to 90 seconds, close air valve (1). Close gate valve (4) .
Open purge valve (2) in order to relieve any pressure from the container. Close purge valve (2) .