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 00-20 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). STARTER CIRCUIT TESTS (Contd) NG80 TK MODE DO CURRENT PROBE OFFSET: • Connect cable W5 to batteries. • Turn off all vehicle electrical power. • Dial 90 into TEST SELECT switches. • Press and hold TEST until CAL message appears on the display. • Release TEST. • Wait for offset value to appear. • Is offset value within limits of –225 and +225? 3 CHECK STARTER CIRCUIT: • Dial 90 into TEST SELECT switches. • Crank engine for a few seconds with fuel shutoff. • Is starter circuit above 100 amps? 4 NO YES YES NO TEST NO. TEST 89 90 0–45 VOLTS DC 0–1500 AMPS DC NG130 • Proceed to TM 9-4910-571-12&P for offset fault isolation. • Error Message E013 displayed in step 2 indicates short circuit, frozen starter, or tight engine. • Check wiring to starter for short circuits. Repair as necessary (WP 0090 00). • If wiring is OK, proceed to Engine Tightness Test NG 130. PROMPTING MESSAGE NOTE After completing repair, rerun GO Chain tests (WP 0017 00) to verify that problem is fixed and no other problems exist. • Proceed to step 5. 5