Operation and Maintenance Manual SC9DF Electronically Controlled Diesel Engine for Agricultural Equipment
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Replace the high pressure fuel pipes or the pipe connections become loose;
The engine does not continue running after initial startup or startup;
Fuel in the fuel tank has been sucked up;
Loosen the air bleed plug on the fuel fine filter and press
priming pump to deliver fuel until no air bubble is visible in the
fuel
flowing from the plug, then tighten the plug again.
There is an automatic air bleed device in the fuel filter head of
some China IV and China V engine models. So for those engine
versions, it is not necessary to bleed air manually. The remaining
air in the fuel filter is discharged automatically from the air bleed
valve into the fuel tank where air exhausts.
4.4.4 Check air intake system
Check the air intake hose to see whether there is crack or
perforation, or its clamp is loose; if so, tighten or replace them in
order to ensure the air intake system has no leakage, otherwise,
the engine will be damaged.
4.4.5 Check intercooler and its lines
Visually check the air inlet/outlet chamber of the intercooler to
see whether there are cracks, perforation or other defects.
Check the intercooler pipes, cooling core and welding seams to
see whether there are cracks, tip off or other defects.
filter head of China IV and China V models
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