ENGINE DIAGNOSTIC TOOLS Section 4 OPERATING PROCEDURES 1. Select the 1/4 in.  transducer (Black). 2. Clamp  on  the  1/4  in.    transducer  to  the  No.    1 fuel injection line (See Figure 11) at the injection nozzle end. IMPORTANT • THE TRANSDUCER MUST BE SECURELY ATTACHED ON A STRAIGHT SECTION  OF  THE  FUEL  LINE  WITHIN  4 IN. OF THE INJECTION NOZZLE. • CLEAN THE FUEL LINE WITH ABRASIVE CLOTH  OR  STEEL  WOOL  TO  REMOVE ALL   PAINT   PRIOR   TO   AFFIXING   THE TRANSDUCER. • DO NOT ALLOW THE TRANSDUCER TO CONTACT THE INJECTION LINE NUT. • DO NOT OVERTIGHTEN THE TRANSDUCER  ON  THE  FUEL  LINE.    A "SNUG" FIT IS ALL THAT IS NECESSARY FOR PULSE DETECTION. 3. Connect    ground    clip    from    transducer    to    an appropriate ground as shown in Figure 11. 4. Connect  transducer  to  timing  unit  PICK-UP  (4, Figure 10) using transducer connecting cable (9, Figure 10). IMPORTANT TRANSDUCER  MUST  BE  DRY.    WET CONDITIONS  CAN  CAUSE  ERRATIC READINGS.    IF  ERRATIC  READINGS ARE OBSERVED, REMOVE TRANSDUCER, WIPE LINE AND TRANSDUCER  WITH  A  CLEAN,  DRY CLOTH  AND  SPRAY  TRANSDUCER, ON ALL SURFACES, WITH A WATER DISPLACING  SUBSTANCE,  SUCH  AS WD-40®    AND    RECLAMP    ON    THE FUEL LINE. 5. Connect    the    POWER    SOURCE    CLIPS    (7, Figure 10) to the vehicle battery terminals or 8 to 28 volt supply [red to "+", black to "-"] OBSERVE POLARITY   OR   DAMAGE   TO   CABLES   MAY RESULT! 6. 6.9 Liter Diesel uses magnetic probe method for determining crankshaft position. • MAGNETIC PROBE METHOD - CRANKSHAFT MONITORING 6.9 LITER DIESEL only. 1. Connect  the  magnetic  probe  (Figure  11)  to  the timing unit by inserting plug into probe JACK (3, Figure 10). 2. Insert the magnetic probe into the magnetic pick- up  access  hole  located  on  the  engine  (Figure 11). 3. Turn   the   Function   Switch   (1,   Figure   10)   to "OFFSET".    With  power  applied  to  the  timing unit, the DEGREE DISPLAY should light up and read "SET 20.0". NOTE:   The  6.9L  Diesel  has  a  20°  OFFSET  thus  no OFFSET adjustment is required. 4. Turn FUNCTION CONTROL SWITCH TO "PROBE".  The RPM display  should  read  0  and the DEGREE DISPLAY should read 0.0. 5. Set timing unit to "HIGH TRIGGER" mode. IMPORTANT HIGH    TRIGGER    MODE    MUST    BE USED  WITH  THIS  METER.    USE  OF THE  LOW  TRIGGER  SETTING  WILL RESULT IN FAULTY TIMING READING. CGES-240-4 Printed in United States of America Page 15