31. Perform stall test as follows:
The stall check in this procedure is not allowed when engine is in
vehicle. Using stall check can harm engine and/or transmission if not
The stall check will tell you if the powerplant is producing
maximum power. If it is not, the check will tell you whether the
engine or transmission is at fault. This check is to be used only if
no other check is available.
M113A3/M548A3 OSV engines with X200-4 or X200-4A
transmissions shall be rated at 275 horsepower +/- 5 percent at
2800 rpm, using DF2 fuel. There will be an additional 10%
decrease in horsepower when using JP8 fuel. The minimum
horsepower allowed is 235.12.
a) Run engine at 800 rpm for 35 minutes with range selector in 1 range and brakes locked until
normal engine operating temperature is reached.