MACK ENGINE INFORMA TION

For engine starting procedures, refer “ST TING THE VEHICLE” , page 164 .

Precautions and W arnings

Caution

a winterfr ont use only a winterfr ont that was designed for this specific W interfr onts e not r but may used during very cold weather with sustained temperatur below25°C ( - 13°F).

Caution

sur e avoid high intake/exhaust temperatur when using winterfr onts under normal operating conditions (above The r estriction airflow can cause higher exhaust temperatur power excessive fan usage and r educed fuel economy

Caution

a winterfr ont used, a MACK - appr oved exhaust pyr ometer must installed and closely monitor while the engine operation. NOT exceed the maximum temperatur e indicated the r line the gauge. T o r educe exhaust temperatur downshift r educe engine power and open the winterfr ont.

Caution

not permit a heavy load drive the engine above the governed speed. Operate a gear low enough allow the engine accelerate (or maintain) governed speed when applying the thr ottle.

W Arning

Misuse modification a turbocharger can r esult serious injury and operty damage. addition, extr eme car e must taken avoid for eign material induction, excessive exhaust temperatur and lack lubrication.

Caution

The maximum allowable engine speed listed the warning label the sun visor NOT exceed

Engine Model Designations

The MACK engine model designation system uses letters and numbers provide a complete unit description.

Engine Letters and Number

C0029956

Mack Power Curve Family: Econodyne = E

Maxicruise = C

Maxidyne = M

Peak Horsepower Rounded Cubic Inch Displacement (1000 cu. in.)