TM 9-2320-289-207-6.SERVICE BRAKE SYSTEM BLEEDING INSTRUCTIONS (Con’t).10.Fill master cylinder reservoir to proper level. (Seeb.MANUAL BLEEDINGWARNINGAlways wear goggles when bleeding brakes.may result in serious eye injury.CAUTIONLO 9-2320-289-12)Failure to follow this warningDO NOT allow master cylinder to run out of brake fluid during bleedingprocedures. Frequently check master cylinder fluid level and refill asrequired. Ensure that master cylinder cover is securely installed. Failure tofollow this caution will allow air into brake system.NOTEIf only front or rear half of system has been serviced, it is usuallynecessary to bleed only that half of system; however, if firm brakingaction cannot be obtained after bleeding, it will be necessary to bleedentire system.MANUAL BLEEDING procedures cover bleeding at one wheel. Repeatsteps for each wheel and bleed brakes in the following order:rightrear, left rear, right front, left front.If master cylinder is suspected to have air in its bore, performsteps 1-3.1.Disconnect front brake pipe fitting (4)and drain fluid into a suitablecontainer. Connect front brake pipefitting, but DO NOT tighten.2.Have an assistant slowly depressbrake pedal to bleed air from loosefront brake pipe fitting (4). Tightenfront brake pipe fitting, then slowlyrelease brake pedal.3.Wait 15 seconds, then repeat steps 1and 2 until all air is purged from frontconnection. Repeat steps 1-3 for rearbrake pipe fitting (4).4.Perform steps 4 and 5 in PRESSUREBLEEDING.TA496637-12
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