User Manual

OPERATING INSTRUCTIONS FOR A FIRST TIME START
of the coolant. For more detailed
recommendations, refer to the
How to Select Coolant section in
this guide.
3. Entrapped air must be purged
after filling the cooling system.
To do this, allow the engine to
warm up with the pressure cap
removed. With the transmission
in neutral, increase engine speed
above 1,000 rpm and add coolant
to the radiator as required.
4. Check to make sure the front
of the radiator and air-to-air
charge cooler (if equipped) are
unblocked and free of debris.
Lubrication System Checks
The lubricating oil film on th e rotating
parts and bearings of a new or newly
overhauled eng ine, or one which has
been in storage f or six months or
more, may be insufficient when the
engine is started for the first time.
NOTICE:
Insufficient lubrication at startup can
cause serious damage to engine
components.
To insure an immediate flow of
oil to all bearing surfaces at initial
engine startup, the engine lubrication
system should be charged with a
commercially available pressure
pre-lubricator. I f this is impractical,
rocker covers should be removed and
clean lubricating oil should be poured
over the rocker arms. The oil should
be the same weight and viscosity
as that used in the crankcase. After
pre-lubricating, add additional oil to
bring the level to the proper mark on
the dipstick. See Figu re 4.
Figure 4 Check Lube Oil Level
Before Starting
For lubricant recomm endation,
refer to the How to Select Lubricating
Oil section in this guide.
Extended Storage — An engine
in storage for an extended period
of time (over winter, for example)
may accumulate water in the oil
pan through normal condensation of
moisture (always present in the air)
on the cold, internal surfaces of the
engine. Lube oil diluted by w ater
cannot provide adequate bearing
protection a t engine startup . For this
reason, Detroit Diesel recommends
16 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION