operators_manual

that it spools out and retracts
webbing properly.
6. If tethers are used, be sure they
are properly attached to the seat
and, if adjustable, that they are
adjusted in accordance with
installation instructions. Tethers
must also be inspected for web
wear and proper tightness of
mounting hardware.
7. Mounting hardware should be
evaluated for corrosion, and for
tightness of bolts and nuts.
8. Check web in areas exposed to
ultraviolet rays from the sun. If the
color of the web in these areas is
gray to light brown, the physical
strength of the web may have
deteriorated due to exposure to the
sun's ultraviolet rays. Replace the
system.
Once the need for replacement of the seat
belt has been determined, be certain it is
only replaced with an authorized PACCAR
Parts replacement seat belt. If the
inspection indicates that any part of the
seat belt system requires replacement, the
entire system must be replaced. An
installation guide is attached to every
replacement belt. Utilize the proper guide
for your type of seat, and follow the
instructions very closely. It is vitally
important that all components be
reinstalled in the same position as the
original components that were removed
and that the fasteners be torqued to
specification. This will maintain the design
integrity of the mounting points for the seat
belt assembly. Contact your dealer if you
have any questions concerning seat belt
replacement.
Cooling System
Maintenance
Information about concentration and
condition of coolant, including filter.
The cooling system in your vehicle was
factory filled with extended life coolant that
meets or exceeds all ASTM D6210 and
Caterpillar EC-1 requirements. PACCAR
recommends only using a 50/50 mixture of
distilled water and ELC when cooling
system service is required. A 50/50 mixture
of ELC and distilled water will provide
freeze protection down to –34°F (–36.7°C),
which is adequate for most locations in
North America. For extremely cold
operating conditions, a 60/40 mixture
(coolant/water ratio) can be used to
provide freeze protection down to -62°F
(-52.2°C).
Unless otherwise optioned, factory fill
coolant is an ethylene glycol, nitrited
organic acid technology (NOAT) extended
life coolant (ELC) formulation at a 50:50
coolant-to-distilled water mixture. The
factory fill exceeds ASTM D6210 and
Caterpillar EC-1 requirements. Maintaining
coolant chemistry and freeze protection is
critical to engine and cooling system
component health and longevity.
WARNING
Coolant is toxic. DO NOT get the fluid
in eyes. If contact occurs, flood eyes
with large amounts of water for 15 mi-
nutes. Avoid prolonged or repeated
contact with skin. In case of contact,
immediately wash skin with soap and
water. DO NOT take internally. If swal-
lowed, seek immediate medical atten-
tion. DO NOT induce vomiting. Failure
to comply may result in death, person-
al injury, equipment or property dam-
age.
MAINTENANCE - Cooling System Maintenance
Y53-6047-2HEN (03/18) 223
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