WAGER 7500, Руководство пользователя, Страница: 34 / 36

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Determine whether the vehicle has passed or failed by comparing the smoke opacity test result to the
standards appropriate for the test vehicle‘s engine model year.
STALL TEST
The testing procedures for the stall smoke opacity test, required pursuant to N.J.A.C. 7:27-14.5, shall be
performed, on a vehicle with a medium or high speed diesel engine and an automatic transmission only,
as follows:
Unless the vehicle engine is of a torque-tube design, inspect the vehicle’s drive shaft, U-joints and
slip-joints for mechanical integrity.
Discontinue testing of any vehicle exhibiting signs of appreciable looseness or wear in the U-joints or
slip-joints, or any damage to the drive shaft, which would adversely affect the vehicle‘s mechanical
integrity. Do not resume testing unless and until the defects are repaired.
Ensure that the parking and service brakes are in good operating condition.
Discontinue testing of any vehicle exhibiting inoperable or inadequate parking or service brakes. Do not
resume testing unless and until the defects are repaired.
Determine the engine horsepower from the engine identification plate or engine serial number. Refer to
Table 1 below and input the nominal stack size into the smokemeter. If the engine identification plate is
missing, inaccessible or illegible, measure the outside diameter of the exhaust pipe extending from the
exhaust manifold with a precision caliper or equivalent gauge, rounding to the nearest inch.
Ensure that the smokemeter is warmed up and calibrated according to N.J.A.C. 7:27B-4.2 and the
manufacturer‘s instructions.
Chock the drive-wheels.
Set the vehicle’s parking brake.
Start the engine and operate at curb idle speed..