Paccar PX-9 Operator's Manual - page 59
MAINTENANCE GUIDELINES
cooling system. If operating
in sub-freezing conditions,
a 60/40 mix of antifreeze
and distilled water may be
substituted.
°
Always dilute antifreeze to
the correct concentration
based on freeze protection
before adding it to the cooling
system. Adding or using 100%
antifreeze in a cooling system
may result in cooling system
plugging and overheating
problems.
•
Diesel Exhaust Fluid (DEF) Level
– Check/Top Up:
NOTE
It is recommended to top up DEF
when refueling. See “Engine Af-
tertreatment Systems Operator’s
Manual” for DEF information.
•
Check for any signs of fluid leaks
•
Ensure all access caps/covers are
properly installed and tight.
Every 7,500 mi (12,000 km), 250
Hours, or 3 months – Maintenance
Check
•
Air Cleaner Restriction -
Check/Correct
°
Service filter element when
air cleaner restriction gauge
(option) locks in the extreme
high position.
°
Hose/Pipe condition -
deterioration/signs of leaking
°
Hose clamp torque
•
Charge Air Piping - Check/Correct
°
Hose/Pipe condition -
deterioration/signs of leaking
°
Hose clamps for tightness
°
Clearance to other
components
•
Charge Air Cooler - Check/Correct
(12/2014)
Y53-1185-1B1
5-5
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