TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download

Page 20 of 680

TB 9-2320-335-13&P 1-10 1-27.1. STEERING CONTROL SYSTEM OPERATION (SERIAL NUMBERS 300000 AND ABOVE) Major components of the steering system are: A OIL RESERVOIR – The oil reservoir serves as an oil filling point. B HYDRO-BOOSTER – Converts hydraulic power from the steering pump to mechanical power to the master cylinder, providing power assist during braking. C STEERING GEAR – Converts hydraulic power from steering pump to mechanical power at pitman arm. D POWER STEERING COOLER – Directs power steering fluid through a series of fins or baffles so outside air can dissipate excess heat before the fluid is recirculated through the steering system. E SERPENTINE BELT – Transmits mechanical driving power from crankshaft drive pulley to steering pump pulley which drives the steering pump. F STEERING PUMP – Supplies the oil under pressure throughout the steering system. A F C E D B