John Deere CD4039DF008 - Manual (Page 69)

Maintenance/As required
DPSG,CD03523,46 –19–10AUG99–2/2
CD30771
–UN–24SEP99
RG7725
–UN–08JAN97
•
At Fuel Injection Pump:
a. Slightly loosen fuel return line connector (C) at fuel
injection pump.
b. Operate fuel supply pump primer lever until fuel,
without air bubbles, flows from fuel return line
connection.
c. Tighten return line connector to 16 N•m (12 lb-ft).
d. Leave hand primer in the inward position toward
cylinder block.
•
At Fuel Injection Nozzles:
a. Using two open-end wrenches, loosen fuel line
connection at injection nozzle.
b. Crank engine over with starting motor (but do not
start engine), until fuel free from bubbles flows out of
loosened connection. Retighten connection to
27 N•m (20 lb-ft).
c. Repeat procedure for remaining injection nozzles (if
necessary) until all air has been removed from fuel
system.
If engine still will not start, see your authorized servicing
dealer or engine distributor.
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PN=69