Doosan D35C-5 FDA04 Operation & Maintenance Manual page 108

Operation Section
Problem
Excessive Fuel
Consumption/LP
G Exhaust Smell
Probable Cause
Air/Fuel Mixer malfunction
Air filter clogged
Vacuum leak
Pressure regulator malfunction/fuel
pressure too high
Faulty FTV
Weak ignition and/or spark control
Incorrect air/fuel control
Exhaust system leaks
Oxygen sensor failure
Check mixer
See Engine Service Manual

Check air filter
Clean/replace as required

Check system vacuum hoses from
regulator to FTV and mixer
Repair/replace as necessary

Test pressure regulator operation
See Engine Service Manual

Check FTV for housing cracks or
obstructions
See Advanced Diagnostics FTV

operation
Repair and/or replace as necessary

See Advanced Diagnostics
See Advanced Diagnostics
Repair exhaust system
Replace as necessary
See Advanced Diagnostics

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Corrective Action