Doosan D35C-5 FDA04 Operation & Maintenance Manual page 104

Operation Section
Problem
Will Not Run
Continuously
Will Not
Accelerate/Hesita
tion During
Acceleration
Probable Cause
Fuel container almost empty
Excess flow valve closed
Clogged fuel filter
Plugged fuel line
Pressure regulator freezes
Fuel Lock-off malfunction
Incorrect idle speed or ignition
problem
Engine Mechanical
Fuel container almost empty
Excess flow valve closed
LPG Vapor from liquid outlet
Fill fuel container

Do not exceed 80% of liquid capacity

Reset excess flow valve
Close liquid valve

Wait for a "click" sound

Slowly open liquid valve

Repair/replace as required
See Maintenance Section, LP Fuel Filter

replacement
Remove obstruction from the fuel line
Close liquid fuel valve

Using caution, disconnect the fuel line

(some propane may escape)
Clear obstruction with compressed air

Re-connect fuel line

Slowly open liquid fuel valve & Leak test

Check level in cooling system
Must be full, check coolant strength

-35F minimum

Check coolant hoses
Watch for kinks and/or pinched hoses

Verify one pressure hose and one return

hose
Repair/replace Fuel Lock-off
See Engine Service Manual

See Advanced Diagnostics
See Engine Service Manual
LPG Vapor from liquid outlet
Fill fuel container

Do not exceed 80% of liquid capacity

Reset excess flow valve
Close liquid valve

Wait for a "click" sound

Slowly open liquid valve

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Corrective Action