Quantcast b.  Slave Piston Adjustment (Contd)

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TM 9-2815-225-34&P 3-86.  ENGINE RETARDER INSTALLATION (Contd) LOCATION/ITEM ACTION REMARKS b.  Slave Piston Adjustment (Contd) 12. Slave piston (30) Adjust clearance as follows: a.  Loosen locknut (6). b.  Loosen setscrew (7) several Turn counterclockwise to loosen turns. until there is no pressure or tension. c.  Insert feeler gauge between A slight drag should be felt on slave piston (30) and crosshead. the feeler gauge when setscrew (7) Adjust clearance to 0.018 in. is properly adjusted. (0.457 mm). CAUTION After  slave  piston  adjusting  screw  locknut  has  been  tightened  to  specified  value,  check clearance with feeler gauge again.  Do not overtighten adjusting screw locknut or clearance may change and result in damage to engine. d.  Tighten locknut (6) to 40 lb-ft (54 Nm). e.  Recheck clearance between Refer to CAUTION before step 6d. slave piston (30) and crosshead Repeat steps 6a through 6d if with feeler gauge. any change in clearance is found. 13. Solenoid harness (10) Connect spade end (6) to solenoid valve assembly (36).  Connect receiver end (11) to terminal (14) inside of engine brake retarder assembly (31). NOTE If engine will be started after installation and adjustment of engine retarder, it will then be necessary to bleed air from engine retarder assembly and proceed with step 14.  If it will not be started, proceed with follow-on tasks. 14. Engine brake retarder When engine is installed on assembly (31) dynamometer test stand, bleed and purge air as follows: a.  Start engine and run for several minutes. b.  Rev engine to 1800 rpm and release throttle. c.  Push down on solenoid armature (5) five or six times to permit engine lubricating oil to fill engine brake retarder housing oil passages. FOLLOW-ON TASKS:   Install engine lifting brackets (TM 9-2320-273-20 or TM 9-2320-283-20).   Install rocker covers and gaskets (TM 9-2320-273-20 or TM 9-2320-283-20).   Install air aftercooler (para. 3-87). 3-654


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