SkyTrak 8042 Service Manual - Manual (Page 327)

Engine: Cummins 4BT3.9 and 4BTA3.9
7A.4 Model 8042, 10042, 10054 Legacy Rev. 10/03
7A.1 INTRODUCTION
7A.1.1 Disclaimer and Scope
These instructions are written for worldwide use. In
territories where legal requirements govern engine smoke
emission, noise, safety factors, etc., apply all instructions,
data and dimensions provided herein in such a way that
after maintenance, service and repair of the engine,
engine operation does not violate local regulations.
IMPORTANT: These instructions cover only the routine
maintenance, removal, installation and troubleshooting
of the engine. Refer to the local Cummins Engine
Distributor and the applicable Cummins engine service
manual for assistance with comprehensive engine
diagnosis, repair and component replacement.
Note: The 8042 model unit has the 4BT3.9 Cummins
engine installed. The 10042 and 10054 models have the
4BTA3.9 engine installed. The “A” designation represents
the After Cooler found on the 10042 and 10054 models.
For additional information on the After Cooler, refer to
the appropriate Cummins engine manual.
A gradual running-in (break-in) of a new engine is not
necessary. Full load can be applied to a new engine as
soon as the engine is put into service and the coolant
temperature is at least 140° F (60° C). Extended light-
load operation during the early life of the engine is not
recommended. DO NOT run the engine at high, no-load
speeds. DO NOT apply an overload to the engine.
7A.1.2 Component Terminology
To understand the safety, operation and maintenance
information presented in this section, it is necessary that
the operator/mechanic be familiar with the names and
locations of the engine components. The following
illustration identifies the components that are referred to
throughout this section.