Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
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4.6.1 Disassembly and Assembly of Intake and Exhaust System
4.6.1.1 Exploded View for Assembly of Intake and Exhaust System
1— Intake pipe 2 - Exhaust pipe 3 - Turbocharger oil inlet subassembly 4 - Turbocharger 5 - Turbocharger oil
return pipe subassembly
Figure 4-44 Exploded View for Assembly of Intake and Exhaust System
4.6.1.2 Intake and Exhaust System Disassembly Procedures
①Loosen the air filter fastening bolts and hose clamps and take out the air filter and connecting
hose. Loosen the connecting bolts of muffler pipeline and take out the muffler and its pipeline.
②Loosen the clamp of air circuit connecting hose and take out the outlet connecting pipe of
turbocharger compressor.
③ Loosen the inlet and outlet oil pipes fixing bolts of the turbocharger. Disassemble the inlet and
outlet oil pipes and their gasket;
④Loosen the turbocharger fastening bolts and take out the turbocharger.
⑤Disassemble the heat shield bolts and heat shield. Loosen the exhaust pipe fixing bolts.
Disassemble the exhaust pipe and gasket. For details, see section 4.6.3 “Disassembly,
inspection, repair, and assembly of exhaust pipe”.
⑥ Loosen the intake pipe fixing bolts. Disassemble the intake pipe and gasket. For details, see
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