Saga continues!!
The batteries are not charging
I do not think they have charged once since I brought it home.
The battery charge meter, well I'm an A hole....... It has never shown a charge.
I never got around to checking out why it reads low and I never got my voltage meter out to check the batteries, because the genset just ran and ran, started each time. my volt meter needs a new 9v battery, etc etc etc like I said Im an a hole!!
Now batteries are dead and starter just clicks.
I charged batteries, preheat, prime, start, runs fine...but no charge at batteries
First thing I did is consult the TM
You would be so proud!
However I believe there is another TM for the engine specifically?
I have downloaded what I can from here but those are 804a with the isuzu
This should be all the TM's you need to work on the MEP-804A generator set.
www.steelsoldiers.com
I found this just downloaded it
This is the Engine Technical Manual, TM 9-2815-538-24&P for the MEP-804B, 15 KW YANMAR engine.
www.steelsoldiers.com
Yanmar engine TM
I have checked the alternator charging fuse, it is good
I have reset the battery charge circuit breaker, 25 amp and the one below it DC power something or other 7.5 amp...both appear fine.
Alternator, gauge, fuse, control panel, and battery wires/connections are good.....belt has proper tension.
I will be cleaning up the battery cable connections at the convenience port there is some corrosion there. I am charging the batteries again with a small generator
Next time I start this thing up I want to test the alternator for 28V DC at idle
As I understand it with the 804b much of the controls are 24V and this genset will shut down if the alternator is not producing power?
Also the alternator has one wire that is not connected to anything?
Is there an alternator wiring diagram?
Thank you!!!!!
I do have a 24V battery charger
Can I hook up a 24V battery charger at the slave receptacle? How?
Battle on!
TM SAYS:
SYMPTOM
12. BATTERY CHARGE ammeter shows low or no charge.
TEST OR INSPECTION
Step 1. Check BATTERY CHARGER FUSE.
CORRECTIVE ACTION
If BATTERY CHARGER FUSE (WP 0004, Figure 1) is blown, notify next higher maintenance level.
TEST OR INSPECTION
Step 2. Check fan belt.
CORRECTIVE ACTION
If loose (WP 0002, Figure 1), notify next higher maintenance level.
TEST OR INSPECTION
Step 3. Check for loose or broken wires.
CORRECTIVE ACTION
Check for loose or broken wires at the back of the battery charging alternator (WP 0002, Figure 1)
and BATTERY CHARGE ammeter (WP 0004, Figure 1). If wires are loose or broken, notify next
higher maintenance level.
SYMPTOM
13. BATTERY CHARGE ammeter shows excessive charging after prolonged operation.
TEST OR INSPECTION
Step 1. Check batteries for low electrolyte level.
CORRECTIVE ACTION
If low, refer to WP 0013, Service. If level is correct, go to Step 2.
TEST OR INSPECTION
Step 2. Check battery connections.
CORRECTIVE ACTION
If loose or corroded, notify next higher maintenance level.