PACCAR Y53-1030A 12/09 – 13 –
OPERATING INSTRUCTIONS
General Information
Correct care of your engine will result in longer life, better
performance, and more economical operation.
Follow the daily maintenance checks listed in “Maintenance
Schedule” on page 45.
The new PACCAR engine associated with this manual does
not require a ”break-in” procedure. This section of the manual
provides all of the necessary information required for proper
engine operation.
Check the oil pressure indicators, temperature indicators,
warning lights, and other gauges daily to make sure they are
operational.
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