Table 6-1 Troubleshooting
Condition | Possible cause | Checks | Action |
| Batteries | Voltmeters should read | Check electrolyte |
|
| at least 12.5 or 25 VDC | Test and recharge bad |
|
| Check each battery in | |
|
| battery(s) | |
|
| bank for correct voltage | |
|
| Replace battery(s) with | |
|
|
| good battery(s) |
| Battery circuits | Check battery and | Clean and tighten |
|
| ground connections | connections as |
Engine does not crank |
|
| necessary |
| Check battery voltage |
| |
with MANUAL |
|
| |
START |
| Check battery cables |
|
|
| and connections |
|
|
| Check engine starter | Clean and tighten |
|
| cables and connections | connections as |
|
|
| necessary |
|
|
|
|
Engine does not crank | MANUAL CRANK #1 | Check battery voltage | Refer to schematic |
using MANUAL | switch | while holding | Use volt/ohm meter to |
START - Battery No. 1 |
| MANUAL CRANK #1 | determine which |
|
| switch | component is faulty |
Engine does not crank | MANUAL CRANK #2 | Check battery voltage | Refer to schematic |
using MANUAL | switch | while holding | Use volt/ohm meter to |
START - Battery No. 2 |
| MANUAL CRANK #2 | determine which |
|
| switch | component is faulty |
If voltage checks indicate batteries and circuits OK then the engine starter or the pilot (or starting) contactors are faulty.
