TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
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TM 9-2350-273-BD POWERTRAIN/STEERING SECTION II. Transmission 7-4. TRANSMISSION SLIPPAGE General Information When the transmission is slipping, the engine overspeeds relative to vehicle movement. The procedure below is the only known battlefield expedient that can be performed on the transmission in less than 2 hours to correct transmission slippage. The transmission converter pressure must be raised to above 60 psi for transmission to operate. Draining and replacing transmission oil with OE 30 or OE 50 oil will not correct transmission slippage caused by pump or disk wear. Limitations Potentially short transmission service life. Personnel/Time Required: 2 soldiers 2 hours Materials/Tool: Steel washer; minimum l/2-inch inside diameter, maximum l-inch outside diameter. Procedural Steps: NOTE This procedure will increase the pressure to the converter approximately 10 psi per washer and raise the converter pressure above 60 psi. Transmission will not operate if pressure is below 60 psi. 1. Remove two flat washers from hydraulic power pack side mount. Re-install bolts and lock washers in side mount. 2. Gain access valve body. 7-3