TM 1-1520-240-102-15-16 (2)Press and hold the depressurization valveon the APU start module accumulator until system pres-sure is depleted. When the accumulator has been de-pressurized, return the handle of the UTILITY RES-ERVOIR DEPRESSURIZE valve to NORMAL.(3)Not precharge on accumulators and ensureis within limits as per figure 2-15-3.(4)If servicing is required, refer to TM55-1520-240-23.b.The power steering and swivel lock accumulatoris located on the right side of the cabin, in the cargo ramparea. Determine accumulator precharge as follows:NOTEAn alternate method is to apply external pow-er to the helicopter and cycling the STEER-ING CONTROL SWIVEL STEER switch onthe center console from LOCK to UNLOCKseveral times.(1)Depressurize the accumulator by startingthe APU and placing the APU GEN switch to ON.(2)Place the HYD BRK STEER isolation switchon the overhead switch panel to OFF. Cycle the STEER-ING CONTROL SWIVEL STEER switch on the centerconsole from LOCK to UNLOCK approximately sixtimes.(3)Note precharge on accumulator and ensureprecharge is within limits as per figure 2-15-3.(4)If servicing is required, refer to TM55-1520-240-23.c.The brake accumulator is located within the aftleft side of the forward transmission fairing. Determineaccumulator precharge as follows:(1)Depressurize the accumulator by pressingthe brakes approximately four times or until it becomeshard to apply the brakes.(2)Accumulator precharge should read be-tween 600 and 850 psi.(3)If servicing is required refer to TM55-1520-240-23.2-15-21. Ground Handling (Towing).Refer to TM 55-1520-240-23.2-15-22. Parking.Park helicopter as directed in the following steps:a.Apply wheel brakes. Then, set the parking bra-kes.b.Place chocks as required.CAUTIONFailure to position blades properly can al-low a blade to hit the fuselage. This maydamage the fuselage and blade.c.Position rotary-wing blades 30_ off centerline ofhelicopter.d.Unplug the battery after the last flight of the day.
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