HOW-TO SECTION
to prevent the engine from
starting.
[b] Operate the manual primer
pump on the
fi
lter header until
the primer pump is hard to
depress. See Figure 25.
[c] Crank the engine three times
for 15 seconds each. Reapply
the primer pump after each
crank cycle.
[d] Once the primer pump is
hard to depress (usually three
crank and hand prime cycles),
reconnect the CMP.
NOTICE:
To avoid starter damage, do not
crank the engine longer than
15 seconds at a time. Allow a
15-second starter cool down interval
between starting attempts.
5. Start the engine and check for
leaks.
Fuel Pro Filters —
Use the following
procedure for an engine with Fuel Pro
fi
lters.
1. Remove the vent cap from
the top of the
fi
lter by turning
counter-clockwise. Fill the cover
full of
clean
fuel. After making
sure the O-ring seal is installed on
the vent plug, reinstall the plug
and tighten
by hand
only.
NOTICE:
To avoid cover or vent cap damage,
do not use tools to tighten the vent
cap.
NOTICE:
Do not allow the fuel level in the
see-thru cover to fall below the top
of the collar, since this may lead
to interruption of the fuel flow and
engine stalling.
2. Start the engine and allow the
lubrication system to reach its
normal operating pressure, then
increase engine speed to high idle
for 2 to 3 minutes. After the air is
purged and with the engine still
running, loosen the vent cap on
the
fi
lter cover. the fuel level in
the cover will start falling. When
the fuel level falls to the top of
the collar on the Fuel Pro cover,
tighten the vent cap quickly
by
hand
.
NOTE:
If the engine fails to start after
replacement of fuel filters, the fuel
system will require priming with tool
J 5956 or equivalent. Authorized
Detroit Diesel distributors are properly
equipped to perform this service.
88
All information subject to change without notice.
(Rev. May 2004)
DDC-SVC-MAN-0057 0305
Copyright © 2003 DETROIT DIESEL CORPORATION