TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download

Page 54 of 870

TM 9-2350-247-20-1 EQUIPMENT DESCRIPTION — Continued 0002 00 Transmission (M548A3) Characteristics Metric Equivalents Manufacturer Allison Transmission Division, GMC Model X-200-4/4A Type Hydromechanical cross drive Rating Input horsepower (max) 275 Input speed 2975 rpm Gross vehicle weight 31,000 lb at 40 mph 1407 kg at 64.4 kph Hydraulic torque converter Type Single stage, three element, polyphase Stall torque ratio 3.32:1 Lockup clutch Automatic second through fourth range Gearing type Constant mesh, spur type, planetary Ranges Four forward, one reverse Ratios First 4.16:1 Second 2.34:1 Third 1.46:1 Fourth 1.04:1 Reverse 6.62:1 Steering Type Infinitely variable hydrostatically controlled differential Range Minimum Steer Ratio First 2.31:1 Second 1.58:1 Third 1.32:1 Fourth 1.22:1 Neutral Pivot Brakes Type Multiple wet plate Service apply Hydraulic with mechanical actuation 0002 00-8 Change 1