Charging System Test (Micro500Xl) - Midtronics Micro400XL Instruction Manual

GB
With the vehicle lights off:
If the engine cranks slowly but will not start, check all wiring to ensure
it is in good condition. Make sure the cables from the starter to the battery
are sized according to the manufacturer's specifications. If the engine
is operating properly and the wiring is in good condition, repair or replace
the starter.
If the engine cranks but does not start, check the ignition system and fuel
system for other problems.
If the engine does not crank and a clicking noise is heard, check the
solenoid.

CHARGING SYSTEM TEST (Micro500XL)

NOTE: When testing older model diesel engines in cold
weather, preheating and post heating of the glow plug may
skew test results. Warm up the engine for 5 minutes before
the test.
If you selected the IN-VEHICLE battery test using the Micro500XL after
the starter system test, the display will toggle between the starter system
test result and the charging system test screen. Press ENTER to begin
the test.
1. The analyzer will display the alternator voltage level. Press ENTER
to continue.
NOTE: If necessary the analyzer will ask if you are testing a
diesel engine. It will resume testing after you make your
selection.
2. The analyzer will prompt you to rev the engine. Gradually increase
the rpm until the analyzer tells you to HOLD the rev level as the black
bar shown on the display crosses the line.
NOTE: Some 8-cylinder and older vehicles idle at a high
level after starting, allowing the tester to detect a rev without
any action being taken. If this occurs, continue with the test
process. The final test results will not be affected.
3. When analyzer detects the rpm, it will prompt you to press ENTER
to continue.
4. The analyzer will next test the engine at idle for comparison to
other readings and then test the diode ripple. Excessive ripple
usually means one or more diodes have failed in the alternator or
there
stator damage.
5. After approximately 10 seconds, it will prompt you to TURN LOADS
ON and press ENTER.
NOTE: DO NOT use cyclical loads such as air conditioning
or windshield wipers.
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