TM 9-2320-273-20Section VI PUSHER AXLE AND CONTROLS2-15. INTRODUCTION.A pusher axle is provided on M917, M919, and M920 vehicles.2-16. PUSHER AXLE.1.PRESSURE REGULATOR VALVE. Allows operators to regulate air pressure to air bags.2.PRESSURE GAGE. Air-actuated gage indicates pressure in lines to air bags.3.UP-DOWN SELECTOR VALVE. In DOWN position, directs air pressure to air bags whichlower axle. In UP position, directs pressure to air cylinders which raise axle.4.AlR CYLINDERS. Provide force to raise axle to stowed position.5.SHOCK ABSORBERS. Stabilize fluctuations in air bags caused by road surface variations.6.AlR BAGS. Provide force to lower axle to road position.2-14
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