SEAL-O-RING 3409313 - Caterpillar

Deposits form on the vanes of the nozzle and the turbine wheel during normal operation. The deposits can reduce efficiency and performance of the turbocharger.Cleaning will help to minimize deposits. The cleaning procedure removes light deposits. Severe service applications may require more frequent cleaning. Consult your Caterpillar dealer about scheduling maintenance for specific applications.Note: Make several copies of Table 1 for future use.
Before cleaning the turbocharger, record the data for the engine performance in the appropriate cells of Table 1. Compare the data to the data from the engine commissioning. If the data is similar, cleaning the turbocharger may not be necessary. If cleaning is not necessary, record new data and compare the data after 25 service hours.If cleaning is necessary, proceed to Step 2.
Clean the turbocharger according to Special Instruction, SEHS9929, "Turbocharger Water Wash Procedure".
Operate the engine at the load and rpm that was used before the cleaning procedure. Record the data for the engine performance in the appropriate cells of Table 1.
Compare the “before” data to the “after” data. Also, compare the data to the data from the engine commissioning. Efficient operation of the turbocharger is indicated by normal ranges for exhaust manifold pressure, exhaust port temperature, and inlet manifold air pressure.If the turbocharger does not function with normal efficiency after this cleaning, the turbocharger may require disassembly for a complete mechanical cleaning.
Table 1
Data For 3600 Engine Performance
Serial number Customer identifier
Date Service hours
Engine load Engine rpm
Performance Before Cleaning the Turbocharger
Exhaust manifold pressure (left) Exhaust manifold pressure (right)
Exhaust manifold temperature (left) Exhaust manifold temperature (right)
Exhaust stack temperature (left) Exhaust stack temperature (right)
Inlet manifold air pressure
Cylinder number Exhaust port temperature Cylinder number Exhaust port temperature
1 9
2 10
3 11
4 12
5 13
6 14
7 15
8 16
Performance After Cleaning the Turbocharger
Exhaust manifold pressure (left) Exhaust manifold pressure (right)
Exhaust manifold temperature (left) Exhaust manifold temperature (right)
Exhaust stack temperature (left) Exhaust stack temperature (right)
Inlet manifold air pressure
Cylinder number Exhaust port temperature Cylinder number Exhaust port temperature
1 9
2 10
3 11
4 12
5 13
6 14
7 15
8 16