Navistar MaxxForce DT 9, Operation And Maintenance Manual

Page: 57 / 109

SECTION 4 – ENGINE OPERATION
Starting the Engine (cont.)
the engine has push button starting, press and hold starter
button.
5. When the engine starts, release the ignition switch or starter
button. The ignition switch will return to ON and the engine
will continue to run.
6. With the transmission in neutral, release clutch pedal if
equipped.
CAUTION: To prevent damage to the engine , if the engine fails
to start within 30 seconds, do the following:
• Turn ignition switch to OFF and wait 2-3 minutes.
• Repeat steps 1 through 5.
• If after three attempts the engine does not start, determine
the cause.
• If starting attempts are continued, the starter motor can be
damaged.
7. Low idle speed is 700 rpm (nonadjustable). Extended idling
periods should be avoided. See Extended Idling Periods in
this section. Check all gauges during warm-up.
CAUTION: To prevent engine damage – do not increase engine
speed until oil pressure gauge indicates above 214 kPa (31
psi). If oil pressure does not reach the minimum limit within 20
seconds, shutdown the engine.
8. Within 20 seconds after engine start, engine oil pressure
should exceed 214 kPa (31 psi).
9. After the engine has reached operating temperature, the oil
pressure, at a high idle, should be 276 kPa (40 psi) minimum.
If oil pressure does not meet the minimum limit, stop the
engine and correct the problem.
NOTE: If engine starts and then stops, repeat engine starting
procedure. If more than three attempts are required, correct
cause of no-start.
Form No. 1172040R1
Printed in the United States of America
Page 49