TM10-3930-660-20 5-12. HIGH PRESSURE FUEL LINES   - REPLACE  (Cont’d) Hold delivery valve (11) stationary when tightening nuts (12) on fuel lines (2) at injection pump (13) . 1. POSITION FUEL LINES (2) ON INJECTION PUMP (13), AS TAGGED, AND TIGHTEN NUTS (12) TO SECURE. CAUTION Fuel lines (2) must be clamped securely and routed so they do not contact each other or any other component during engine   operation. 2. 3. SECURE BRACKET (9) AND TWO BRACKETS (10) TO ENGINE WITH THREE CAPSCREWS (8) . TORQUE CAPSCREWS (8) TO 216 LB. IN. SECURE FUEL LINES (2) WITH SIX MOUNTS (7), THREE BRACKETS (6), SIX FLATWASHERS (5), AND SIX CAPSCREWS (4) . Install, but do not fully tighten, nuts (1) in Step 4. Nuts will be fully tightened during bleeding in Step 5. 4. POSITION FUEL LINES (2) ON FUEL INJECTORS (3), AS TAGGED, AND LOOSELY INSTALL NUTS (1) TO SECURE. WARNING To prevent danger of fire caused by fuel spilling on hot exhaust manifold, do not bleed fuel lines (2) if engine is hot. 5. BLEED FUEL LINES (2) AT FUEL INJECTORS  (3). Be sure auxiliary fuel shut-off switch is in the ON position, TM10-3939-660-10. a. b. c. d. e. Crank engine until fuel is flowing from all six lines (2) at injectors (3). Tighten all nuts (1) until snug. Bleed fuel lines (2) at injectors (3), one at a time, until engine starts and runs smoothly. Repeat steps 5C through 5e for each fuel line (2) as required. Loosen  nut  (1). Crank engine until fuel flows from line (2). Tighten nut (1) until snug. 5-27