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WARRANTY

Allowable Air Intake Restriction

Allowable air intake restriction ≤ kPa (mmAq)
Engine model
Initial upper limit Upper limit for air cleaner replacement

All TNV models . (00) . ()

Allowable Exhaust Back Pressure

Allowable air intake restriction ≤ kPa (mmAq)
Engine model
Initial upper limit Upper limit for exhaust system cleaning
All models 1. (100) (0)

In-Use Testing Requirements
Exhaust systems should be designed so that a 0 cm (. in.) extension can be installed to the end of the
exhaust pipe for purposes of sampling emissions. For equipment that does not allow installation of an extension
pipe, a connection must be designed into the exhaust system for temporary attachment of exhaust sampling
equipment. An example of an approved connection would be internally threaded with standard pipe threads of a
size not larger than one-half inch, and shall be closed by a pipe-plug when not in use.

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