Jeep GLADIATOR 2023, Руководство пользователя

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348 SERVICING AND MAINTENANCE
D
IESEL
E
XHAUST
F
LUID
Diesel Exhaust Fluid (DEF) sometimes known simply by
the name of its active component, UREA, is a key
component of Selective Catalytic Reduction (SCR)
systems, which help diesel vehicles meet stringent
emission regulations. DEF is a liquid reducing agent that
reacts with engine exhaust in the presence of a catalyst to
convert smog-forming Nitrogen Oxides (NOx) into
harmless nitrogen and water vapor.
For further information
Ú
page 397.
A
CCESSORY
D
RIVE
B
ELT
I
NSPECTION
When inspecting accessory drive belts small cracks, that
run across ribbed surface of belt from rib to rib, are
considered normal. This is not a reason to replace the belt.
However, cracks running along a rib (not across) are not
normal. Any belt with cracks running along a rib must be
replaced. In addition, have the belt replaced if it has
excessive wear, frayed cords, or severe glazing.
Accessory Belt (Serpentine Belt)
Conditions that would require replacement:

Rib chunking (one or more ribs has separated from belt
body)

Rib or belt wear

Longitudinal belt cracking (cracks between two ribs)

Belt slips
 Groove jumping (belt does not maintain correct posi -
tion on pulley)
 Belt broken

Noise (objectionable squeal, squeak, or rumble is
heard or felt while drive belt is in operation)
NOTE:
Identify and correct problem before new belt is installed.
Some conditions can be caused by a faulty component
such as a belt pulley. Belt pulleys should be carefully
inspected for damage and proper alignment.
Belt replacement on some models requires the use of
special tools, we recommend having your vehicle serviced
at an authorized dealer.
A
IR
C
ONDITIONER
M
AINTENANCE
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.
WARNING!

Do not attempt to inspect an accessory drive belt
with vehicle running.
 When working near the radiator cooling fan, discon -
nect the fan motor lead. The fan is temperature
controlled and can start at any time regardless of
ignition mode. You could be injured by the moving
fan blades.

You can be badly injured working on or around a
motor vehicle. Only do service work for which you
have the knowledge and the proper equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent
mechanic.
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, located online, 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.
23_JT_OM_EN_USC_t.book Page 348