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The Caterpillar Truck Engine
Division has introduced two new engines to the market, the 14.6 liter C-15 and
the 15.8 liter C-16. the new
engines are based on Caterpillar’s 3406 models.
Caterpillar used customer feedback when designing the new engines, with
feature more power, reduced engine weight, superior fuel economy and low
operating cost.
The weight of the two engines have been reduced by 200 pounds, and both models
have better fuel efficiency because of the ADEM 2000, a system for monitoring
and improving truck engine performance. The
noise level of the engines have been reduced by 0.5 decibels with the addition
of a high contact ratio super gear train, a thicker oil pan and a stronger
seal on the crack shaft access cover. A
leak free seal is reliable and easy to assemble is another feature added by
designers. The C-15 offers
horsepower rating from 355 to 550, and the C-16 offers horsepower ratings from
575 to 600.
AIR SYSTEM PARTS REPLACEMENT
If components needed to be
replaced on truck’s air system, do not alter the layout.
The air system is designed to efficiently deliver air to the brakes and
other components of the chassis within very precise tolerances and pressure.
When the routing of an air line needs to be changed, it must be done
without changing hose lengths, fitting types or by causing restrictions in the
air line. Changes such as
substituting a 90 degree or straight fitting, or by tapping into the system
indiscriminately with a T-connector, can affect break timing.
If tapping into the air system is required, the following recommended
tap locations must be adhered to so that slow break timing does not occur:
 | Any
unused port in the front or rear service reservoir |
| Any
unused port in the front or rear manifold in the cab |
| As
a second choice, it is permissible to tee into any reservoir port that is
not used to control or supply air to the break system, such as treadle,
service break relay or antilock valves |
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