806A panel has no power won’t start

[027rdh]

How’s it going fellas,
I’m having issues with a generator 806A the panel has no power I’ve checked batteries checked continuity to the starter replaced relays but still can’t find the issue. I’ve looked for the TM and found a handful but none of them give me the T/S for this certain issue. I would appreciate the help if someone could guide me in the right direction. Thank you in advance.

 

[kloppk]

Which TM are you looking at?
The TM 9-6115-645-24 has a troubleshooting section in it in table 2-6

1. ENGINE FAILS TO CRANK.
Step 1. Test for defective DEAD CRANK switch, paragraph 2-110.1.
a. If DEAD CRANK switch is not defective, do Step 2.
b. f defective, replace DEAD CRANK Switch, paragraph 2-110.
Step 2. Check for loose or corroded battery cable terminals or battery posts.
a. If terminals are tight and posts are clean, do Step 3.
b. If not clean and tight, clean and tighten battery cable terminals and posts, paragraph 2–12.4.
Step 3. Check that batteries are installed correctly, paragraph 2-12.5.
a. If batteries are installed correctly, do Step 4.
b. If not properly installed, install batteries correctly, paragraph 2-12.5.
Step 4. Test for low or no battery charge, paragraph 2-12.1.
a. If fully charged, do Step 5.
b. If not fully charged, replace batteries, paragraph 2-12.
Step 5. Test for defective DC CONTROL POWER circuit breaker, paragraph 2-50.2.
a. If DC CONTROL POWER circuit breaker is not defective, do Step 6.
b. If defective, replace DC CONTROL POWER circuit breaker, paragraph 2-50.
Step 6. Test for battery voltage at input of MASTER SWITCH.
a. If battery voltage is present, do Step 7.
b. If battery voltage is not present do Step 8.
Step 7. Test MASTER SWITCH output voltage in Start position.
a. If battery voltage is present at MASTER SWITCH output terminal (7) and ground, do Step 11.
b. If battery voltage is not present at output terminal, test MASTER SWITCH, paragraph 2-32.3.
Step 8. Test for defective battery charging ammeter shunt, paragraph 2-54.2.
a. If not defective do Step 9.
b. If defective, replace battery charging ammeter shunt, paragraph 2-54.
Step 9. Test for defective reverse battery diode (CR1), paragraph 2-66.2.
a. If not defective, do Step 10.
b. If defective, replace reverse battery diode, paragraph 2-66.4.
Step 10. Test for defective EMERGENCY STOP switch, paragraph 2-41.3.
a. If not defective, do Step 11.
b. If defective, replace EMERGENCY STOP switch, paragraph 2-41.
Step 11. Test for defective start relay (K15), paragraph 2-60.2.
a. If not defective, do Step 12.
b. If defective, replace start relay, paragraph 2-60.
Step 12. Test for defective cranking relay (K2), paragraph 2-101.2.
a. If cranking relay is not defective, do Step 13.
b. [f defective, replace cranking relay, paragraph 2-101.
Step 13. Test for defective crank disconnect relay (K16), paragraph 2-60.2.
a. If crank disconnect relay is not defective, do Step 14.
b. If defective, replace crank disconnect relay, paragraph 2-60.
Step 14. Check starting circuit for breaks or loose connections. Refer to Electrical Schematic FO-1.
a. If starting circuit has no breaks and connections are tight, do Step 15.
b. if defective, repair or replace defective wires or connections.
Step 15. Test for defective starter solenoid, refer to TM 9-2815-256-24.
a. If starter solenoid is not defective, do Step 16.
b. If defective, replace starter solenoid in accordance with TM 9-2815-256-24.
Step 16. Test for defective starting motor, refer to TM 9-2815-256-24.
a. If defective, replace starting motor in accordance with TM 9-2815-256-24.
b. If starting motor is not defective, notify next higher level of maintenance.

 

[Guyfang]

All the TM's for this gen set are in the TM forum. You do know, that there are two different sets of TM's. One set for the engine, one set for the generator. The information posted above should get your problem fixed.