Paccar PX-9, Руководство оператора

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During cold weather, the use of winter fuel
blends can significantly improve the ease
of starting performance, and overall
dependability of your vehicle. Winter fuel
blends are designed to reduce wax gelling
in the fuel filter and lines.
If starting a cold engine, remember to
slowly increase the engine speed. This
provides adequate lubrication to the
bearings and gives ample time to allow the
oil pressure to stabilize. Also, for coolant
temperatures below 150°F (70°C), use a
low gear and drive at moderate engine
speed until the engine coolant has reached
operating temperature. Do not let the
engine idle longer than necessary. If the
vehicle cannot be driven, an elevated idle
speed may be used instead to warm the
engine.
Extreme cold conditions can cause oil
pressure delays when using 15W40
viscosity grade engine lubricating oil. For
extreme cold conditions, the use of a
different engine lubricating oil viscosity is
recommended.
Cold weather starting aids are available for
this engine. Contact a Cummins®
Authorized Repair Location for more
information.
3. Return to step 2 in the Normal
Starting Procedure
CAUTION
The use of starting aids, such as ether,
may result in damage to the engine
and engine aftertreatment system.
Starting Procedure After Extended
Shutdown or Oil Change
After extended shutdown or an oil change
follow the Normal Starting Procedure on
page 23.
The engine will not start until the minim
cranking oil pressure is detected by the
ECM. It can take more cranking time to
start the engine after an extended shut
down or oil change.
Operating the Engine
Monitor the oil pressure and coolant
temperature gauges frequently. Refer to
Engine Oil Capacities and Pressures on
page 45 and
Engine Coolant
Specifications on page 50 for
recommended operating pressures and
temperatures. Shut off the engine if any
pressure or temperature does NOT meet
the specifications.
Continuous operation with engine coolant
temperature above or below the engine
coolant temperature specifications listed in
“ Engine Coolant Specifications on page
50” can damage the engine.
ENGINE OPERATION - Operating Instructions
Y53-1185-1J1 (10/21) 25
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