TM 9-2815-225-34&P 3-78.  FUEL PUMP INSTALLATION (Contd) LOCATION/ITEM ACTION REMARKS a.  Fuel Pump Installation (Contd) NOTE Perform step 6 for M915/Big Cam I only. Perform steps 7 and 8 for M915A1/Big Cam III only. 6.   Two screws (5) and Install on support bracket Use air compressor wrench washers (4) (M915/Big (8), fuel pump (10), gasket (2), (3375159) (12).  Do not tighten Cam I) and air compressor (1). screws (5) at this time. 7.   Screw (9) and washer (4) Install on support bracket (8), Use air compressor wrench (M915A1/Big Cam III) fuel pump (10), gasket (2), and (3375159) (12).  Do not tighten air compressor (1). screw (9) at this time. 8.   One screw (5) and washer Install on fuel pump (10), gasket Use air compressor wrench (4) (M915A1/Big Cam III) (2), and air compressor (1). (3375159) (12). 9.   Screws (5) and (9) Tighten to 30-35 lb-ft (41-48 Nm).   If air compressor wrench (12) is (M915A1/Big Cam III) used, tighten screws until tight. 10.     Tachometer drive Connect to fuel pump (10). Refer to TM 9-2320-283-20. 3-598