TM 5-3805-262-343-1. ENGINE MAINTENANCE (CONT)a. Engine Tune-up (SHEET 20 OF 21)(8) Engine Stall Speed Tests (Cent).(j) Torque converter stall test:1Start engine and operate at idle speed.2Release parking brake by pushing parking brake valve knob inward.3Put transmission control lever in H position.4Press and hold down brake treadle and valve pedal for remainder oftest.5Press accelerator pedal fully.6Tell first assistant to presstachometer against enginetachometer drive shaft andtake constant reading of en-gine speed.7Tell second assistant to watchthermometer of temperatureprobe installed in transmis-sion elbow.8When transmission temperaturereaches 200 degrees F, tellfirst assistant to record en-gine speed as indicated by ta-chometer. Engine speed shouldbe 2000 to 2100 rpm usingnumber 2 Diesel fuel or 1900to 2000 rpm using number 1Diesel fuel.NOTETachometer drive shaft operates at half engine speed. Double tachometerindication to obtain engine rpm.9Release accelerator pedal and place transmission control lever in Nposition. Allow engine to operate at idle speed for three minutes thenturn off engine and apply parking brake by pulling parking brake valveknob outward.3-22
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