Kenworth T410, Driver'S Handbook Manual

Page: 318 / 418

Page 292 CAT: 8612 November 2019
PREVENTIVE MAINTENANCE
Exhaust System
Removing or rendering inoperative the exhaust system components.
The exhaust system is part of the noise control system. Periodically check
the exhaust for wear and loose or missing parts.
Inner Fender Shields and Cab Skirts
Removing shields or skirts.
Cutting away parts of shields, skirts or damaged or loose portions of
shields or skirts.
Noise-insulation Blankets
Removing noise insulators from engine block or from around the oil pan.
Cutting holes in, or cutting away part of, noise insulators.
Removing hood-mounted noise insulation.
AIR SYSTEM SILENCERS
Certain air components in the vehicle's Braking System are fitted with
silencers. These silencers need to be inspected on a regular basis, with
particular attention being paid to the Air Dryer Purge Tank (if fitted). This can
block internally, due to the air supply coming from the engine intake side.
As a routine check it is good practice to apply heavy braking, when
stationary, at the start of the day when the truck has warmed up and before
entering public roads. This action will ensure higher exhausting pressure.
Road trains and vehicles driving on unmade roads and dusty conditions,
need to check and clean the silencers more frequently.
Do not remove these silencers from the system, they can only be removed
for cleaning or replacement.
To clean the silencers, use a warm soapy solution, or soak in kerosene or
similar product, blowing dry using a low pressure compressed air nozzle.
Care must be taken when using compressed air.