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384 SERVICING AND MAINTENANCE
Engine Air Cleaner Filter Installation
NOTE:
Inspect and clean the housing if significant dirt or debris is
present before replacing the engine air cleaner filter.
1. Install the engine air cleaner into the housing
assembly with the engine air cleaner filter
inspection surface facing downward.
2. Install the engine air cleaner filter cover onto the
housing assembly locating tabs.
3. Tighten (6) screws to secure the engine air cleaner
filter cover to the housing assembly.
AIR CONDITIONER MAINTENANCE
For best possible performance, your air conditioner should
be checked and serviced by an authorized dealer at the
start of each warm season. This service should include
cleaning of the condenser fins and a performance test.
Drive belt tension should also be checked at this time.
Refrigerant Recovery And Recycling —
R-134a — (If Equipped)
R-134a Air Conditioning Refrigerant is a Hydrofluo-
rocarbon (HFC) that is an ozone-friendly substance.
The manufacturer recommends that air conditioning
service be performed by an authorized dealer or other
service facilities using recovery and recycling equipment.
NOTE:
Use only manufacturer approved A/C system PAG
compressor oil and refrigerants.
Refrigerant Recovery And Recycling —
R-1234yf — (If Equipped)
R–1234yf Air Conditioning Refrigerant is a Hydrofluo-
roolefin (HFO) that is endorsed by the Environmental
Protection Agency and is an ozone-friendly substance with
a low global-warming potential. The manufacturer
recommends that air conditioning service be performed by
an authorized dealer using recovery and recycling
equipment.
NOTE:
Use only manufacturer approved A/C system PAG
compressor oil, and refrigerants.
Cabin Air Filter Replacement
For the proper maintenance intervals Ú page 369.
CAUTION!
Always observe the position of the trailer and
surroundings using the camera and mirrors to avoid
damage to the truck or trailer.
WARNING!
Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause the
system to fail, requiring costly repairs. Refer to
Warranty Information Book, for further warranty
information.
The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal injury
or damage to the system, adding refrigerant or any
repair requiring lines to be disconnected should be
done by an experienced technician.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air
conditioning components. Such damage is not covered
by the New Vehicle Limited Warranty.
WARNING!
Do not remove the cabin air filter while the vehicle is
running, or while the ignition is in the ACC or ON/RUN
mode. With the cabin air filter removed and the blower
operating, the blower can contact hands and may
propel dirt and debris into your eyes, resulting in
personal injury.
23_DJD2_OM_EN_USC_t.book Page 384
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