PART 8: MAINTENANCE AND SERVICE
PB1319 (CAT. NO. 5296 ) —163— 22-01691 (R02/02)
up and down through its normal operating range. Check muffler
for rust and corrosion.
• Exhaust Tail Pipe(s)
Check the mounting security. Tighten as necessary. The miter cut
at the tip of the pipe must be facing the rear of the truck. Do not
modify the end of the pipe in any way.
Fan Shroud
Check all fasteners for tightness. Check for stress cracks in the
shroud. Make sure the shroud is adjusted so that it does not touch
the fan blades.
Hood Insulation Blanket
• Fasteners: Check all fasteners for condition and security. Repair
or replace any broken or defective fasteners.
• Blanket: Check for chafing, tears, etc. Patch it if necessary. Find
the cause of the damage. If any component or accessory is caus-
ing wear or damage and can’t be relocated, put reinforcing pads
on the blanket at the site of wear.
Engine Mounted Noise Insulators
• Fasteners: Check for condition and security. How you do this will
depend on the method of attaching the noise insulators on the
engine and around the oil pan (bolts, snap fasteners, or straps).
Tighten loose fasteners and repair or replace any worn or dam-
aged fasteners.
• Insulators: Check insulators around fasteners and stress points,
especially where they may be affected by engine vibration. Repair
any cracked or damaged mounting points. Use suitable reinforc-
ing plates to ensure that the insulators will remain in position.
Inner Fender Shields and Cab Skirts
• Fasteners: Check all fasteners for security, especially the self-tap-
ping 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.
WARNING! The engine fan can engage at any time without
warning. Anyone near the fan when it turns on could be
badly injured. Before turning on the ignition, be sure that
no one is near the fan. Do not work on the fan with the
engine running.
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