PART 8: MAINTENANCE AND SERVICE NOISE CONTROL SYSTEM
(R10/06) Y53-6007 – 203 –
Insulators
Check insulators around fasteners and stress points,
especially where they may be affected by engine vibra
-
tion. Repair any cracked or damaged mounting points.
Use suitable reinforcing plates to ensure that the insula
-
tors will remain in position.
Inner Fender Shields and Cab Skirts
Fasteners
Check all fasteners for security, especially the self-tapping
hex head screws. 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 condi-
tion and repair them as necessary. Damaged rubber
fender shields or cab skirting cannot be repaired. You
will need to replace it.
Your authorized dealership can perform all of these
checks and repairs or replacements.
Air Intake System
• Do all checks and maintenance chores listed in this
manual under Engine Air Intake System and Air
Cleaner (See Index).
• Check the induction tubing, elbow connections,
clamps, brackets, and fasteners for deterioration,
cracks, and security. If you find an air leak anywhere
between the air cleaner and the engine, repair that
leak immediately.
CAUTION: Air leaks cause excessive noise
and may result in serious damage to the
engine. If you do not repair them the engine
damage won’t be covered by your warranty.
Repair all air leaks as soon as you find them.
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