STARTING AND DRIVING
STARTING THE VEHICLE
WARNING
DO NOT work near the fan with the engine
running. The engine fan can engage at any
time without warning. Anyone near the fan
when it turns on could be seriously
injured. Before turning on the ignition, be
sure that no one is near the fan.
Priming the MP Fuel System
Unlock the hand primer pump by
pushing the pump handle in and
turning it counterclockwise.
2
Pump the hand primer until the force
of pumping increases.
NOTE
When the fuel system is empty, 200 or
more pump strokes can be required to
properly prime the system.
NOTE
There are NO bleed nipples to be opened
in order to prime the fuel system.
3
Lock the hand primer pump by
retracting it into the housing and
turning it clockwise.
4
Start the engine and run it at an
increased idle speed for
approximately 5 minutes to remove
any remaining air in the system.
5
Check the fuel system for leaks.
NOTE
If the engine does not start following this
procedure, contact your local certied
dealer.
Engine Warm-Up
CAUTION
Idling the engine unnecessarily for long
periods of time wastes fuel and fouls
injection nozzles. Unburned fuel causes
carbon formation and oil dilution. To avoid
engine damage, NEVER race an engine
during warm-up.
Engine damage can occur if the engine
is not warmed up to a minimum
operating temperature of 77°C (170°F)
before operating the vehicle.
Heavy-duty diesel engines are designed
to operate at optimum efciency when
they are running loaded at normal
operating temperature. This condition is
where the most efcient combustion
takes place. When the engine is
operated unloaded, lightly loaded (such
as stop-and-go operations, PTO
operations, or periods of extended
engine idling) optimal operating
conditions are inhibited. Also, cold-
weather conditions, prevents the
achievement and maintaining of normal
operating temperature. As a result,
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