1.
Replace the aftertreatment DEF
dosing unit (DEF module) filter
according to the maintenance
schedule.
2.
From the bottom of the tank,
remove the cover plate by
removing the various fasteners
holding it on, then allow the cover
plate to drop down.
Air Compressor
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check and correct for carbon
buildup
Air Intake System
Air Cleaner
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check and correct for restriction:
•
Service filter element when air
cleaner restriction gauge
(option) locks in the extreme
high position.
•
Check hose/pipe condition –
deterioration/ signs of leaking.
•
Check hose clamp torque.
Charge Air Piping
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check and correct the following
charge air piping components:
•
Hose/pipe condition –
deterioration/signs of leaking
•
Hose clamps for tightness
•
Clearance to other components
Charge Air Cooler
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check and correct the following
components of the charge air
cooler:
•
Cracked tubes or header
•
Clogged fins/tubes
•
Hose/pipe condition –
deterioration/signs of leaking
•
Hose clamp torque
Charging - Cranking System
Electrical Harness / Cables
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check the following electrical
components:
•
Inspect for loose connections,
corrosion, chafing, and broken
retention clips
Batteries, Cables, and Connections
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1.
Check the following electrical
components:
•
Condition – electrolyte level,
cracks, signs of leaking,
overcharging
•
Hold-downs – tightness
•
Battery box mounting bolt –
torque
Crankshaft - Vibration Damper
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
ENGINE MAINTENANCE - Maintenance Procedures
70
Y53-1185-1J1 (10/21)
2
Summary of Contents for PX-9
Page 1: ...Operator s Manual Operator s Manual 2022 Model Year Warranty 2021 Emissions...
Page 2: ......
Page 3: ...PX Operator Manual PACCAR PX 9 Engine...
Page 4: ......
Page 5: ...Engine Operation 1 Engine Maintenance 2 Engine Warranty 3 Contents...
Page 78: ...ENGINE MAINTENANCE Engine Identification Y53 1185 1J1 10 21 75 2...
Page 92: ...ENGINE WARRANTY United States and Canada Engine Warranty Y53 1185 1J1 10 21 89 3...
Page 96: ...Index...
