User Manual

specified units, may result in
increased vehicle noise emission.
Hood Insulation Blanket
•
Check all fasteners for condition
and security. Repair or replace any
broken or defective fasteners.
Blanket
• Check for chafing or tears. Patch it
if necessary. Find the cause of the
damage. If any component or
accessory is causing wear or
damage and cannot be relocated,
put reinforcing pads on the blanket
at the site of wear.
Inner Fenders Shields and Cab Skirts
• Check all fasteners, especially the
self-tapping hex head screws. Are
they secure? Remove and replace
any loose rivets.
Shields and Skirts
• Check shields and skirts for cracks
at mounting and stress points.
Check fender shields for tire marks,
worn spots, or damage from
objects thrown from tire treads. You
can repair cracked or damaged
fiberglass fender shields with
fiberglass and resin.
• If you find damage at a fastening
point, you can gain additional
strength by installing a suitable
reinforcing plate. This plate should
be drilled to accept a rivet and
laminated to the shield with
fiberglass and resin.
• Check cab skirts, sills, and
brackets for overall condition and
repair them as necessary.
Damaged rubber fender shields or
cab skirting cannot be repaired.
You will need to replace it.
NOTE
Your authorized dealer can perform all
of
these checks and repairs or re-
placements.
Diesel Exhaust Fluid Tank
V
ehicles that comply with 2010 EPA
emission requirements will have a Diesel
Exhaust Fluid (DEF) tank mounted to the
vehicle frame.
Rear Axle and Suspension
Y
our vehicle's suspension, by design,
requires a minimal amount of maintenance.
However, suspensions in over-the-road
operations require periodic inspection to
ensure trouble-free performance.
WARNING
DO NOT work on the vehicle without
the
parking brake set and wheels
blocked securely. If the vehicle is not
secured to prevent uncontrolled vehi-
cle movement, it could roll and may re-
sult in death, personal injury, equip-
ment or property damage.
MAINTENANCE - Diesel Exhaust Fluid Tank
260 Y53-6113-1A1 (11/20)
5