John Deere POWERTECH 4045 - Manual (Page 191)

Service as Required
OUOD002,000016F –19–27JUL06–4/5
RG11807
–UN–25OCT01
Fuel Injection Pump Return Line
A—Fuel Return Line
At Fuel Injection Pump
1. Loosen fuel return line (A) at fuel injection pump.
2. Operate fuel supply pump primer lever or primer button
on fuel filter base (if equipped).
3. As soon as fuel flow is free from air bubbles, tighten
fuel return line to specifications. Primer lever is
spring-loaded and will return to normal position.
Specification
Fuel Injection Pump Return
Line—Torque
27 N•m (20 lb-ft) ...................................................................
OUOD002,000016F –19–27JUL06–5/5
RG11808
–UN–25OCT01
Nozzle Fuel Pressure Line
At Fuel Injection Nozzles
IMPORTANT: Always use a backup wrench when
loosening or tightening fuel lines at
nozzles and/or injection pump to avoid
damage.
1. Using two open-end wrenches, loosen two fuel line
connections at injection nozzles.
2. Crank engine over with starter motor for 15 seconds
(but do not start engine) until fuel free from bubbles
flows out of loosened connection. Retighten connection
to specifications.
Specification
Fuel Injection Nozzle Delivery
Lines—Torque
27 N•m (20 lb-ft) .................................................................
3. 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.
40-16
080706
PN=189