TM 9-2815-225-34&P 3-87.  AIR AFTERCOOLER INSTALLATION (Contd) LOCATION/ITEM ACTION REMARKS Installation (Contd) 4. Air aftercooler (2) and Install on three cylinder three gaskets (9) heads (1) with three screws (5) or screw (8) (M915A1/Big Cam III) and three washers (3) and new lockwashers (4). NOTE   Two middle holes in air aftercooler are used for mounting ether starting kit.   Refer to TM 9-2320-273-20 or TM 9-2320-283-20 to install ether starting kit.   Tighten  screws  from  the  center  outwards.    Tighten  all  screws  (M915A1/Big  Cam  III)  to 20-25 lb-ft (27-34 Nm). 5. Three screws (5), new Install on three outside holes in Tighten, but do not torque, screws lockwashers (4), and air aftercooler (2), three (5).  Install two remaining screws washers (3) (M915/Big gaskets (9), and three outer (5) once ether starting kit has Cam I) cylinder heads (1). been installed.  Refer to TM 9-2320-283-20. 6. Screw (8), two screws (5), Install on four outside holes in Tighten, but do not torque, screws three new lockwashers (4), air aftercooler (2), three (5) and screw (8).  Install two and washers (3) (M915A1/ gaskets (9), and three cylinder remaining screws (5) once ether Big Cam III) heads (1). starting kit has been installed. Refer to TM 9-2320-283-20. FOLLOW-ON TASKS:   Install water crossover tube and connection (TM 9-2320-273-20 or TM 9-2320-283-20).   Remove engine from maintenance stand (para. 3-88). 3-658