MAINTENANCE AND SERVICING
Form 169552 / 169554 / 169555
136
Revision A
7.8.6.4 Separator
A fuel water separator is incorporated into the
primary fuel filter (A).
The separator is equipped with a sensor (B) that
detects water in the fuel (WIF) and alerts the
Operator on the CDM, and a drain (C).
Drain the water and sediment as follows from
the separator daily, or at any time the CDM
Water in Fuel (WIF) light illuminates.
a. Stop engine, and remove key.
b. Place a container under the filter to catch spilled
fluid.
c. Turn drain valve (C) by hand 1½ to 2 turns
counter clockwise until draining occurs.
d. Drain the filter sump of water and sediment until
clear fuel is visible.
e. Turn the valve clockwise to close the drain.
f. Dispose of fluid safely.
7.8.6.5 System Priming
Controlled venting of air is provided at the
injection pump through the fuel drain manifold.
Small amounts of air introduced by changing
filters or injection pump supply line will be
vented automatically, if the fuel filters are
changed in accordance with instructions.
WARNING
The fuel pump high-pressure fuel lines and
fuel rail contain extremely high pressure fuel.
Never loosen any fittings. Personal injury
and property damage can result.
IMPORTANT
Bleeding the fuel system is not
recommended nor is it required.
Manual priming will be required if:
•
The fuel filter is replaced.
•
Injection pump is replaced.
•
High-pressure fuel lines are replaced.
•
Engine is run until fuel tank is empty.
Prime the fuel system as follows:
a. Stop engine, and remove key.
b. Open engine compartment hood to lowest
position. See Section 7.4 ENGINE
COMPARTMENT HOOD.
c. Turn priming knob (D) counter clockwise to
unlock the plunger on the primary filter head.
d. Pump approximately 120 times to pressurize the
fuel system.
e. Lock plunger by turning knob (D) clockwise until
snug.
f. Try starting engine. If engine does not start,
repeat priming.
B
C
A
D