Schumacher Electric PTI900X Mode D'emploi page 40

9. After you are done testing the charging system at idle, press
charging system with accessory loads. The display screen will show TURN ON
LOADS AND PRESS ENTER. Turn on the blower to high (heat), high beam
headlights and rear defogger. Do not use cyclical loads, such as air conditioning or
windshield wipers. Press
NOTE: When testing older model diesel engines, the users need to run the engine at
2500 rpm for 15 seconds. The display screen will show RUN THE ENGINE UP TO 2500
RPM 15 SEC.
10. The tester will test the amount of ripple from the charging system to the battery.
One of the three following results will be displayed along with the actual reading
measured.
• RIPPLE DETECTED NORMAL: The diodes are functioning properly in the
alternator/starter.
• NO RIPPLE DETECT: The diodes are functioning properly in the alternator/starter.
• RIPPLE DETECTED HIGH: One or more of the diodes in the alternator are not
functioning properly or there is starter damage. Check to ensure the alternator
mounting is sturdy and that the belts are in good shape and functioning properly.
If the mounting and belts are good, the alternator may need to be replaced; have
it checked.
11. Press
the three following results will be displayed along with the actual reading measured:
• ALT. LOAD VOLTS HIGH: The output voltage from the alternator to the battery
exceeds the normal limits of a functioning regulator. Check to ensure there are
no loose connections and that the ground connection is good. If there are no
connection problems, the regulator may need to be replaced; have it checked.
Since most alternators have the regulator built-in, this may require you to replace
the alternator; have it checked.
• ALT. LOAD VOLTS LOW: The alternator is not providing sufficient current for
the system's electrical loads and the charging current for the battery. Check the
belts to ensure that the alternator is rotating with the engine running. If the belts
are slipping or broken, replace the belts and retest. Check the connection from
the alternator to the battery. If the connection is loose or heavily corroded, clean
or replace the cable and retest. If the belts and connections are in good working
condition, the alternator may need to be replaced; have it checked.
• ALT. LOAD VOLTS NORMAL: The system is showing normal output from the
alternator; no problem detected.
12. Press
ENGINE. Press
13. Turn off all accessory loads and the engine. Press
14. The screen will show PRINT RESULTS and a NO or YES option. To change the
print results choice, press
press
screen, depending on which option was chosen. NOTE: If you select the YES to
print; after you've printed the number of copies you need, you select NO to return to
the first screen.
15. Remove the clamps from the battery posts after completion to end the test.
6. REPLACEMENT PARTS
Output Leads ................................................................................................. 2299001824
Battery Cover ................................................................................................. 3799006010
Paper Cover ................................................................................................... 3799006020
Carrying Case ................................................................................................ 2299001986
Paper Roll (1) ................................................................................................. 4999000106
Cable Cover ................................................................................................... 3799006724
to continue testing the charging system with accessory loads. One of
and the display will show TEST OVER, TURN OFF LOADS AND
to continue.
and the tester will print the results of the test or it will go back to the first
to continue.
or . Once the correct option has been selected,
• 40 •
to test the
to continue.