Fuse block question L3800

[ctfjr]

I am waiting for the service manual but. . . I am planning my 'rear' wiring behind the seat. My plan is to run a 20 amp fused line to a 6 position fuse block. That will feed my 10 amps worth of rear lighting as well as the future electric / hydraulic valves.
I'm looking for a source for my 12 volts. The battery was my 1st option but in looking at possible routing to get it to the dash area it looks like a major pia. I removed the fuse block to examine the wiring.
It appears there are 3 provided for, blank accessory positions available. In addition there are two large gauge wires in the bundle. I am assuming one is from the battery (the red one?).
Does anyone know:
1) what is the largest fuse those accessory positions can handle?
2) which is the battery feed?
3) are those accessory fuses switched with the key?
If the accessory positions aren't big enough I can tap into the battery feed or, If the accessory positions are switched, I'll bag the extra fuse block and run the multiple wires back from the main fuse block.

 

[Jim L.]

1) what is the largest fuse those accessory positions can handle?
The largest fuse in the block is 15A. If the individual fuse rating capacity is not marked, at least you know that you're safe with 15A.

2) which is the battery feed?
Battery feed is the red size 3 metric thru a 40A slow blow fuse.

3) are those accessory fuses switched with the key?
Yes, fed by red/white metric 3(s).

You already have a working light outlet under your left rear fender. it has a t-shaped connector with yellow wire hot. Existing 10A fuse in main block.

 

[PoTreeBoy]

Look carefully at those spare fuse locations. Some tractors have spare spaces but there aren't any fuse contacts there.

 

[ctfjr]

1) what is the largest fuse those accessory positions can handle?
The largest fuse in the block is 15A. If the individual fuse rating capacity is not marked, at least you know that you're safe with 15A.

2) which is the battery feed?
Battery feed is the red size 3 metric thru a 40A slow blow fuse.

3) are those accessory fuses switched with the key?
Yes, fed by red/white metric 3(s).

You already have a working light outlet under your left rear fender. it has a t-shaped connector with yellow wire hot. Existing 10A fuse in main block.

Thank you! Yes I just found the working light connector. It was taped to the wires
That changes everything for me. I will use that to feed my switch and then the 2 LED lights.
The other accessory fuses I'll use later when I install my additional valves.
Thanks again!