operators_manual

suitable reinforcing plates to ensure
that the insulators will remain in
position.
Exhaust System
• Check for exhaust leaks, which
would indicate a leaking manifold
gasket; replace gasket if necessary.
• Check cap screws for tightness,
including those at the flanges. Refer
to the engine manufacturer's service
manual for proper tightening
sequence and torque values.
Joints and Clamps
• Check for leaks, and tighten as
necessary. Check for deterioration
or dents in pipes and clamps which
could allow exhaust to escape.
• Replace any serviceable joints,
flexible pipes and gaskets at the
service intervals.
Selective Catalysts Reduction (SCR)
• Check SCR canister filter, clamps
and mounting brackets. Tighten if
necessary. Inspect SCR canister for
signs of rust or corrosion.
Exhaust Piping
• Check exhaust piping for rust,
corrosion, or damage. Replace
deteriorated piping before holes
appear. If piping is perforated at any
point, temporary patching or lagging
is acceptable until you can have
permanent repairs made. On
turbocharged engines, check joints
at flanges and mounting brackets
for tightness.
Diesel Particulate Filter (DPF)
• Check diesel particulate filter (DPF),
clamps, and mounting brackets.
Tighten if necessary. Inspect diesel
particulate filter (DPF) for signs of
rust or corrosion.
• Check internal baffling. You can do
this by listening for rattling sounds
while tapping on the diesel
particulate filter (DPF) with a rubber
mallet or revving the engine up and
down through its normal operating
range.
Diesel Exhaust Fluid Tank (See
Aftertreatment System manual.)
Exhaust Tail Pipe
Engine Fan and Shroud
Hood Insulation Blanket
Inner Fenders Shields and Cab Skirts
Rear Axle and Suspension
Maintenance requirements for rear axle
suspension.
Your 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 park-
ing brake set and wheels blocked securely.
If the vehicle is not secured to prevent un-
controlled vehicle movement, it could roll
and may result in death, personal injury,
equipment or property damage.
MAINTENANCE - Rear Axle and Suspension
Y53-6096-1A1 (01/17) 201
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