International 7400 won't start...blown fuses in battery box

Don’t know how mechanically inclined you are, however first things I would do is clean battery terminals, negative at the frame rail, alternator connections as well as starter connections.

 

There is a wiring harness from those fuses to power the engine control module.
I had a wire rubbed bare on it that periodically shorted to the frame on my 96 9200.
liquid electrical tape after a #10 wire splice and fresh wire loom fixed me up.

 

Somebody says put a larger fuse in as a fix, just assume they're incompetent at electrical and stop listening. Could cost you a truck.

 

Man in have so much to thank you on this one. I had checked all off this but I guess I didn't focus on it hard enough. checked all my battery connections, fuses relays, harness to starter and alternator. checked ECU for corrosion, connectors, followed wiring diagrams. this wire was covered with dirt and grime and never saw the impressions in the harness. I rinsed off the harness cut the anchoring zip tie, exposed harness and saw the wire sheath was exposed touching the other wires. funny thing is the fuses did not pop. Performed the wire splice, soldered the wires together and put heat -shrink. alll ok now