Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
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4.7 Fuel System
4.7.1 Disassembly and Assembly of Fuel System
4.7.1.1 Exploded View for Assembly of Fuel System
Figure 4-50 Exploded View for Assembly of Fuel System
4.7.1.2 Fuel System Disassembly Procedures
①Disassemble the connecting pipelines and cables of fuel system from the vehicle.
②Disassemble the low pressure fuel pipe subassembly. Refer to 4.7.6.2 disassembling procedure of
low pressure fuel pipe for details.
③Disassemble the air pipe of smoke limiter.
④Disassemble the high pressure fuel pipe subassembly.
⑤Disassemble the filter subassembly.
⑥Disassemble the fuel injector subassembly. Refer to 4.7.4.2 disassembling procedure of fuel
injectors for details.
⑦Disassemble the upper cover plate of front wall cap. Refer to 4.3.3.2 disassembling procedure of
front wall cap for details.
⑧Disassemble the fuel injection pump subassembly. Refer to 4.7.2.2 disassembling procedure of
fuel injection pump for details.
High-pressure fuel pipe
Fuel injector
Fuel injector return pipe
Filter
Low-pressure
fuel pipe
Fuel injection pump
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