TM 9-2350-277-20-2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0155 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED CREWMEMBER PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 5 Semi- Annual Stall Check CAUTION A stall check can seriously damage the transmission. ALWAYS do a road test on the carrier. Do NOT do a stall check on the carrier unless conditions absolutely prevent a road test. NOTE The stall check will tell you if the power plant 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. a.  Run engine at 800 rpm for 3-5 minutes with range selector in 1 range and brakes locked until normal engine operating temperature is reached. b.  If outside temperature is less than 85 F (29 C), normal operating temperature should be 160 F to 200 F (71 to 93 C). If outside air temperature is greater than 85 F (29 C), normal operating temperature should be 160 to 225 F (71 to 107 C). CAUTION Limit stall test to 30 seconds. Full throttle use with brakes locked overheats oil and will damage power plant. If you suspect a bad governor, do not perform stall check. Unless absolutely necessary do NOT use stall check, use alternate test. c.  Lock brakes, move range selector to range 1 and push accelerator all the way down. 0155 00-37