ARMY TM 9-6115-639-13 AIR FORCE TO 35C2-3-386-51 MARINE CORPS TM 10155A-13/1 Table 4-4.  Unit Level Troubleshooting (continued)       MALFUNCTION      TEST OR INSPECTION   CORRECTIVE ACTION 2.     ENGINE CRANKS BUT WILL NOT START (continued) f.     Check governor control A5 as follows: (1) Connect positive (+) probe of multimeter to A5-H. (2) Connect negative (-) probe to A5-J. (3) Place START / RUN / STOP switch in START position. (4) 20 to 32 VDC present? If not present, remove and replace governor control (Para. 4-26). g.    Check malfunction indicator module as follows: (1) Disconnect electrical connector P4 from fault indicator module. (2) Attempt to start engine. If engine starts, remove and replace fault indicator module (Para. 4-18). h.    Refer trouble to direct support level maintenance. 3. ENGINE CRANKS SLOWLY, BATTERY RUNS DOWN PRIOR TO STARTING a.    Inspect and test regulator fuse FU1. Remove and replace defective fuse (Para. 4-25). b.    Check generator G1 as follows: (1) Connect positive (+) probe of multimeter to FU1-2. (2) Connect negative (-) probe to terminal board TB4-9. (3) Start generator set. (4) Reading shall be 36 VAC minimum. If not 36 VAC minimum, refer to direct support level maintenance for replacement of   permanent magnet alternator. c.    Check battery charging regulator A9 as follows: (1) Disconnect battery cable from negative (-) battery terminal. (2) Start set using recoil start, set should continue to run. If unit shuts down, remove and replace regulator (Para. 4-29). d.    Refer trouble to direct support level maintenance. 4-16 Change 1