Service Manual

Fuel Inlet Restriction ISB, ISBe and QSB (Common Rail [...]
Page 6-56 Section 6 - Injectors and Fuel Lines - Group 06
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WARNING
Depending on the circumstances, fuel is flammable. Keep all
cigarettes, flames, pilot lights, arcing equipment, and
switches out of the work area and areas sharing ventilation to
reduce the possibility of severe personal injury or death when
working on the fuel system.
CAUTION
The fuel pump high-pressure fuel lines and fuel rail contain
very high-pressure fuel. Never loosen any fittings while the
engine is running. Personal injury and property damage can
result.
CAUTION
Be sure that the fuel inlet and return valves are returned to the
open position before cranking the engine. Engine damage can
result if valves are in the wrong position when the engine is
cranked or started. Environmental damage can also occur.
CAUTION
Use caution when disconnecting or removing fuel lines,
replacing filters and priming the fuel system so that fuel is not
spilled or drained into the bilge area. Do not drop or throw
filter elements into the bilge area. The fuel and fuel filters
must be discarded in accordance with local environmental
regulations.
Refer to Procedure 006-999 in the Familiarization section for
further information.
After Filter Change:
Primary Method: Unlock the manual priming pump handle by
turning counter-clockwise
Pump the primer handle until resistance is felt (approximately
140-150 strokes).
Lock the manual priming pump handle by turning clockwise and
crank the engine.
Start should occur within 5 seconds.
NOTE: Do not fill new filters with fuel prior to assembly, as this will
allow unfiltered fuel to enter the system and may cause damage to
fuel system components.
Alternative method:
Unlock the manual priming pump handle by turning counter-
clockwise.
Pump the primer handle 60 times.
Lock manual priming pump handle by turning clockwise and crank
the engine.
Start should occur within approximately 20 seconds.
NOTE: Do not exceed starter cranking limitations.
If the vehicle tank has run dry:
• Add fuel to the fuel tank.
• Unlock the manual priming pump handle by turning it
counterclockwise
• Pump the primer until resistance is felt (50-60) strokes.
• Lock manual priming pump handle by turning clockwise and
crank the engine.
• Start should occur within 5 seconds.
NOTE: Do not remove and fill filters with fuel prior to priming the
system in an attempt to reduce priming time, as this will allow
unfiltered fuel to enter the system and cause damage to fuel
system components.