TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0018 00 0018 00-18 SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE— REPROGRAMMABLE STE/ICE-R NO-GO CHAIN TROUBLESHOOTING (Contd) Table 2. STE/ICE-R No-Go Chain Test (Contd). NO YES STARTER CIRCUIT TESTS TK MODE NOTE Test GO 1 (WP 0017 00), VTM Connections and Checkout, must be performed before running any other STE/ICE-R test. CHECK STARTER CIRCUIT RESISTANCE: • Shut off fuel. • Press TEST. • When GO appears, attempt to crank engine. • Stop cranking engine when VTM displays OFF or an error message. • Is a number displayed? 2 NOTE While cranking engine with bad or discharged batteries, it is possible for VTM to lose power and come on again after cranking has stopped, displaying four dashes. If this occurs, clean battery posts and clamps and try again. If VTM still loses power, connect VTM power cable to good batteries in another vehicle and perform following test using test probe cable W2. • Proceed to next page. TEST NO. TEST 74 STARTER CIRCUIT RESISTANCE NG80 DO CURRENT PROBE OFFSET: • Connect cable W5 to batteries. • Turn off vehicle electrical power. • Dial 74 into TEST SELECT switches. • Press and hold TEST until CAL message appears on display. • Release TEST. • Wait for offset value to appear. • Is offset value within limits of –225 and +225? 1 PROMPTING MESSAGE • Proceed to TM 9-4910-571-12&P for offset fault isolation. PROMPTING MESSAGE CURRENT PROBE TK11 & TK CABLE W4 (CURRENT PROBE ON CABLE TO STARTER) RIGHT FRONT OF VEHICLE ➮ POWER CABLE W5 W5 CABLE INSTALLATION - BLACK + RED