TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 633 of 858
TM 9-2350-277-20-1 STE/ICE TEST 74 STARTER CIRCUIT RESISTANCE 0131 00 THIS WORK PACKAGE COVERS: Test (page 0131 00-1). INITIAL SETUP: M a i n t e n a n c e L e v e l Unit P e r s o n n e l R e q u i r e d Unit Mech 63T10 R e f e r e n c e s See your -10 TM 9-4910-571-12&P E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Vehicle blocked (see your -10) All electrical accessories turned off (see your -10) Fuel OFF, engine must not start (see your -10) STE/ICE hooked up to DCA 6 (WP 0117 00) 1. Select TEST 74. 2. Perform offset test. a. Press an hold TEST button until CAL appears. Release TEST button. b. If VTM reads between −250 and +250, offset test passes. c. If offset test fails, go to STE/ICE DCA current shunt diagnostic troubleshooting (WP 0142 00). 3. Press and release TEST button. 4. When GO appears, turn MASTER SWITCH to ON and crank engine for five seconds or until one of the following appears on the VTM: DISPLAY PERFORM/RESULT OFF Stop cranking and wait for message to appear. A number CIRCUIT RESISTANCE (in milliohm) .9.9.9.9 Beyond range of VTM, cannot be measured Error message See TM 9-4910-571-12&P 5. Turn MASTER SWITCH to OFF. 6. Observe VTM reading. a. If VTM reads 30 (milliohms) or less, test passes. b. If reading is erratic or cannot be obtained, go to STE/ICE DCA battery voltage diagnostic troubleshooting (WP 0141 00) and STE/ICE DCA current shunt diagnostic troubleshooting (WP 0142 00). 7. Return to troubleshooting. 0131 00-1/2 blank