Cat 305CR stalled under load

I have a 305CR that stalled under load and now won't restart. I was digging with it and it almost stalled a few times while under a high load, then it finally stalled while under high load digging. I tried to restart and it would turn over a few times, then act like the battery was weak. There was a small amount of grey smoke coming from the rear of the engine, between the engine and the hydraulic pump after it stalled. I checked several areas on the engine and pump with an infrared...

Cat 305CR stalled under load

Cat 305CR stalled under load