Mack CHM 2010, Operator'S Handbook Manual

Page: 134 / 232

126 OPERATION
Shutting Down the Engine
After a hard run, allow the engine to idle three minutes before shutdown to stabilize the
temperature of all engine parts. Quick shutdowns can cause engine damage and prevent
the turbocharger from being properly lubricated. For additional options, see “Shutting
Down the Engine”, page 130.
General Observation
Make it a habit at stops to walk around your truck and look for fuel, oil and coolant leaks.
Also check the condition of tyres, wheel nuts, springs and lights. Stop trouble before it
stops you!
STARTING THE VEHICLE
General Information
Before putting the key in the ignition switch, set the parking (spring) brake, disengage the
clutch (if equipped) and put the transmission in NEUTRAL.
CAUTION
Do not engage the starting motor too soon
after an incomplete start of the engine, or
the starter may be damaged. Wait at least
five seconds before attempting to restart
the engine.
CAUTION
Do not rev the engine at start-up.
Turbocharger damage may result because
lubricants need time to establish a film
between moving parts.
CAUTION
If the engine does not start immediately,
limit cranking periods to 30 seconds
to avoid overheating and damaging the
starter.
WARNING
Make sure clutch is depressed and
transmission is in neutral before engaging
the starter! Failure to do so could cause
the vehicle to jerk forward unexpectedly
causing serious damage or bodily harm.