TM    5-5420-226-20-1 Symptom-9 DETAILED TROUBLESHOOTING PROCEDURE ._CY’ VEHICLE OPERATION -  POWERPLANT, STARTING (Continued) -- Caution-_ ...= I Do   not   press   STARTER    button    for I I more   than   14  seconds. I Lr-. -0..0- ---- J ) m Check   basket-control panel  starting   harness   (CKT 486)  at  manifold   preheat   switch   connector    for electrical    power. ~irst   Technician (Operator’s Station) l   Set    MASTER BATTERY switch OFF. l   Place   manual fuel   shutoff handle in   OFF (out) position. l   Disconnect both harness connectors (CKT 486) from preheat switch at   primer pump. l   Set    multimeter to   measure 18  to   30   volts    dc,    or   use STE/ICE Test No. 89   (page    4-81). l   Connect red    probe of   meter to   one    of   the   connectors (CKT 486)    at   manifold preheat switch and    black probe to   ground. l   Set   MASTER BATTERY switch ON. l   Press   STARTER button for   about 10  seconds, then release. l   Check    if   meter    indicates 10  to   30   volts    dc. l   Repeat    above   check   moving    red    probe   of   meter    to other connector (CKT 486)    at   manifold preheat switch. l   Place   manual fuel   shutoff handle in   ON (down) position. Did  meter   indicate   18  to  30  volts   dc  at  one  of  the connectors? n +HF TO   VEHICLE GROUND ^\‘w3) r.CKT   486 w/ ‘i’^{l   Check   manifold   preheat} switch   for  continuity. I YES ~ l   See  Step 12 . TA106912 4-223