1989/09/18 Caterpillar


Procedure To Wash Turbochargers On Engines Powered By Residual Fuel{1052}

Usage:


3606 ( 8RB ),
3608 ( 6MC ),
3612 ( 9RC ),
3616 ( 1PD ) Industrial Engines

Use the following procedure to wash the turbochargers on the above engines when they are powered by residual fuel. The turbochargers on these engines should be cleaned after each 100 hours of operation.

1. Reduce engine load to decrease exhaust temperatures 40 to 50°C (72 to 90°F) below full load exhaust temperatures.


Location of turbocharger water wash components.

2. Open drain valve (1), and check to be sure drain line (2) is not blocked. There is one drain valve for each turbocharger.

3. Fully open needle valves (3) on the exhaust manifolds.

4. Open water supply valve (4) slowly (fully open in 30 seconds). Regulate the supply valve to obtain 0.1 L/min (.03 gpm) flow of wash water out of each drain valve. The water pressure must be 320 kPa (46 psi) or greater at the inlet of the water supply valve.

5. The washing time is 5 to 10 minutes. A measure for the washing time is the clarity of the water from the drain valve.

6. After washing is completed, close supply valve (4) first. Then close needle valves (3). Continue to operate the engine at reduced load until all the parts are dry (about 3 minutes). Close drain valve (1).

Caterpillar Information System:

1989/09/18 New Collar Used In Fuel Injection Control Groups{1298}
1989/09/18 New Design Alternator Belt Used{1405,1406}
1989/09/18 Tightening Procedure For Turbocharger Compressor Nut{1052,1060}
1989/09/18 Radio Interference With Electronic Control Systems{7338}
1989/09/11 Plasma Top Piston Rings Replace Chrome Rings{1215,1214}
1989/09/11 Be Sure To Tighten Fuel Injection Line Clamps To The Correct Torque{1252}
1989/08/28 New Fuel Injectors Available For Parts Service{1290}
1989/08/28 Recommendations For Lubrication Oils In Powershift Transmissions{0645,3150,3179}
1989/08/21 New Engine Oil Cooler Core Groups With Rubber End Sheets Used{1378}
1989/08/21 Lube System Screen Assembly Available For Use During Dynamometer Testing{1307}
1989/08/21 Additional Clamp Added To Aftercooler Water Line{1380}
1989/08/21 Use New Operation And Maintenance Manuals{0374,0375,1000}
1989/09/18 Spindle In Centrifugal Lube Filter Group Now Serviced As Part Of Body Assembly{1318,1306}
1989/09/18 New Seal Group Used In Water Pump Group{1361}
1989/09/25 New Gasket Used On Oil Regulator Housing{1393,1330}
1989/09/25 Improved Support Assembly Used In Water Lines Group{1380}
1989/09/25 Improved Turbocharger Outlet Gasket{1052,1061}
1989/09/25 Setting the Governor Load Stop Output Dimension For More Than 9.00 mm{0782,1257,1265}
1989/09/25 Gauge Your Technical Knowledge-New Feature Covers Variety of Service Topics{0315,0110,0111,0113,5050}
1989/10/02 New Service Tools Available{0600,0700}
1989/10/02 Fuel Injector Reference For 3500 Family Of Engines{1290}
1989/10/02 Updated List Of Charts And Decals Available For Lubrication And Maintenance Intervals{0374,0375,7500,7557,7580}
1989/10/09 Use Fire Resistant Hydraulic Elements To Help Clean Contaminated Hydraulic Systems {5050,5068}
1989/10/09 Cleaning Instructions For Intake Air Filters In Silencer Group {1051,1087}
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