LS MT342 Fault code F18 1076

[TJans]

Any help is appreciated. Two year old LS MT 342 HST 134 hours, while beginning to brush hog RPMs decreased to 800/500 the following code was displayed F18 and 1076 was displayed where hours are normally visible. Massive decrease in power and shut down. Waited a few minutes started tractor again and RPMs did not exceed 500/800 and limped The tractor to barn. No notable leaks or evidence of low fluid volumes.