2-19. TROUBLESHOOTING CHART (continued).Id. ENGINE, ELECTRICAL SYSTEM (continued).(1) ENGINE DOES NOT CRANK. All other electricalsystems operate (continued).CONTINUED FROM EF. 1. Place red Iead of multimeter in socket A ofharness 12266418-1 starter protection relayand ground black lead.2. Turn MASTER switch ON and hold starterswitch ON (refer to TM 9-2350-287-10)3. Check for 24 ± 3 vdc.4. Release starter switch and turn MASTERswitch OFF (refer to TM 9-2350-287-10).Is voltage indicated?Replace starter protection relay(para 7-3). Verify problem issolved.G. 1. Disconnect wire harness 12260287 fromdrivers bulkhead and disconnect harness12268418-1 from voltage regulator.2. Place red lead of multimeter in socket T ofharness 12268418-1 driver’s bulkhead con-nector and place the other lead on socket A ofharness 12268418-1 starter protection relayconnector.3. Check for continuity.4. Place red lead of multimeter in socket B ofharness 12268418-1 driver’s bulkhead con-nector and place the other lead in socket B ofharness 12268418-1 voltage regulator con-nector.5. Check for continuity.6. Place black lead of multimeter on socket Bof harness 12266418-1 starter protection re-lay connector and leave red lead as in step 3.7. Check for continuity.SOCKET BSTARTERRELAYHARNESS12268418-1SOCKET THARNESS12268418-1Continued on next pageHARNESS122502872-55TM 9-2350-287-20-1SOCKET BHARNESS12268418-1
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