Sun Microsystems DGA 5000, Operator'S Manual, Page: 45 / 84

After all necessary settings and connections have been made, proceed
as follows:
•
Start the vehicle engine and allow the oil temperature to come up to
normal operating temperature (see Note above).
•
Insert the sample probe fully into the vehicle tailpipe.
Note:
On exhaust systems having twin tail pipes that exit a common resonator
or muffler the exhaust gas sample may be diluted by ambient air
entering the system via the tail pipe that is not in use for sampling. To
prevent this, block off the tail pipe that is not in use for the sample probe.
Note:
Do not block off a tail pipe if the vehicle is being operated on a chassis
dynamometer. Always be sure to unblock the tail pipe when testing is
complete.
Do not leave the sample probe in the tail pipe when measurements
are not being made, as this will shorten the life of the filter
elements.
•
When testing has been completed and the test results have been
printed or noted, remove the sample probe from the tail pipe and
store it in a dust and water free environment until it is required again.
•
Remove the Oil Temperature probe from the dipstick tube and reinsert
the oil dipstick.
•
Disconnect the rpm pick-up.
If the dipstick is of an adjustable type, ensure that it is properly
adjusted before re-inserting it into the dipstick tube.
7.3 Shut Down Procedure
Refer to the Emissions
Diagnostic Platform Operator‟s Manual (
6.4:
„Shut Down Procedure‟
) for details of the shutdown procedure.
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