Operating Instructions
PACCAR Y53-1030A 12/09 – 27 –
Refer to PACCAR Engine Aftertreatment Systems
Operator's Manual for additional information.
• A symbol of an engine with an exclamation point in the
center, similar to the graphic.
Engine Operating Range
General Information
CAUTION: Operating the engine at full throttle
below peak torque will shorten engine life to
overhaul, can cause serious engine damage,
and is considered engine abuse. Do not operate
the engine at full throttle operation below peak
torque rpm (refer to engine dataplate for peak
torque rpm) for more than 30 seconds.
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