Installation of the Fuel Nozzle for SAC Engines [CFMB]

B. Installation of the Fuel Nozzle
   (1) Remove the protective caps from the nozzles, fuel lines and combustion case pads.
   (2) Apply a thin layer of vaseline (Material No.CP5070) on the AIPC 73-11-40-03-020 O-RING (140) for the drain shroud and on the AIPC 73-11-40-03-010 O-RING (150) for the fuel nozzle.
   (3) Install the new o-ring (140) on the drain shroud.
   (4) Install the new o-ring (150) on the nozzle.
   (5) Apply a thin layer of vaseline (Material No.CP5070) to the tip of the fuel nozzle.
   (6) Install the AIPC 73-11-40-04-076 SEAL (40), AIPC 73-11-40-05-076 SEAL (40), AIPC 73-11-40-06-076 SEAL (40), AIPC 73-11-40-07-076 SEAL (40), AIPC 73-11-40-08-076 SEAL (40), into the seal ring assembly (30) on the and flange of the fuel nozzle. Align the holes in the flange of the seal ring assembly (30) with the holes in the flange of the nozzle.
   (7) Installation of an inlet strainer and a retaining ring if necessary.

CAUTION: MAKE SURE THE FILTER SCREEN IS IN POSITION AND IS INSTALLED CORRECTLY IN THE INLET OF THE FUEL NOZZLE. THIS CAN PREVENT DAMAGE TO THE ENGINE.

     (a) Install a new conical AIPC 73-11-40-03-040 INLET STRAINER (120) and AIPC 73-11-40-03-030 RETAINING RING (130) in the inlet of the fuel nozzle if necessary.

NOTE: The filter screen is installed only in the PARKER-HANNIFIN fuel nozzles.

Pre SB 73-0044

CAUTION: DO NOT USE FORCE TO INSTALL THE NOZZLE IN THE COMBUSTION CASE. YOU MAY CAUSE DAMAGE TO THE COMBUSTION CHAMBER INNER OR OUTER FERRULES OR TO THE TIP OF THE NOZZLE.

   (8) Installation of the nozzle.

NOTE: Install standard flow, wide spray angle fuel nozzles in positions 7, 8, 14 and 15 above and below the igniter plugs. These nozzles should have a natural band color.

     (a) Put the nozzle into the combustion case pad with the tip forward.
     (b) Turn the nozzle counterclockwise while you push it down onto the combustion case pad.
   (9) Move the nozzle aft to engage the tip of the nozzle in the combustor swirl cup.
   (10) Apply a thin layer of graphite grease (Material No.CP2101) or CP2619Never Seez-Pure Nickel, Special to the threads and friction surfaces of the bolts (10) and (50) that attach the nozzles to the combustion case.
   (11) Move the hinge bracket (20) into the correct position, if necessary.
   (12) Put the brackets (60), (70), (80), (90), (100), (110), (800) into position on top of the fuel nozzle, if necessary.
   (13) Install the bolts to attach the fuel nozzle, seal ring assembly (30) and brackets (20), (60), (70), (80), (90), (100), (110), as necessary, to the combustion case.
   (14) TORQUE the bolts (10) and (50) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) .
   (15) Wirelock the bolts (10, 50) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (16) Apply a small amount of fuel system preventative (Material No.CP5066) on the nut to ferrule interface surfaces of the fuel nozzle, fuel supply tube, and drain tube.
   (17) Tighten the coupling nut that connects the fuel nozzle to the fuel manifold three times, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) as follows:
     (a) Tighten the coupling nut, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN )
     (b) Loosen the coupling nut one-half turn and tighten it again, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN )
     (c) Loosen the coupling nut one-half turn and tighten it again, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) .
   (18) Wirelock the fuel tube coupling nut to the tab on the nozzle with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (19) Connect the drain shroud to the nozzle. Tighten the drain shroud using soft-jawed connector pliers until the shroud nut bottoms out.

NOTE: When the shroud nut is bottomed out, no more than two full threads should be exposed on the fuel nozzle.

   (20) Connect the drain tube to the fuel nozzle drain shroud. TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) .
   (21) Do a leak check of the fuel nozzles: (Ref. AMM TASK 73-11-40-790-002).
   (22) Wirelock the drain shroud coupling nut to the nozzle with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

END of PRE SB 73-0044

Post SB 73-0044

   (23) Installation of the nozzle.

NOTE: Install standard flow, wide spray angle fuel nozzles in positions 7, 8, 14 and 15 above and below the igniter plugs. These nozzles should have a natural band color.

     (a) Put the nozzle into the combustion case pad with the tip forward.
     (b) Turn the nozzle counterclockwise while you push it down on the combustion case pad.
   (24) Move the nozzle aft to engage the tip of the nozzle in the combustor swirl cup.
   (25) Apply a thin layer of graphite grease (Material No.CP2101) or CP2619Never Seez-Pure Nickel, Special to the threads and friction surfaces of the bolts (10) and (50) that attach the nozzles to the combustion case.
   (26) Move the hinge bracket (20A) into the correct position, if necessary.
   (27) Put the brackets (60A), (70A), (80A), (90A), (100A), (110A), (800A) into position on top of the fuel nozzle, if necessary.
   (28) Install the bolts to attach the fuel nozzle, seal ring assembly (30) and brackets (20A), (60A), (70A), (80A), (90A), (100A), (110A), as necessary, to the combustion case.

NOTE: Make sure you use the correct length bolts (10) at positions where there are brackets and that the brackets are installed in the correct position on top of the fuel nozzle.

   (29) TORQUE the bolts (10) and (50) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) .

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

   (30) Wirelock the bolts.

NOTE: In all cases, wiring must be installed through the holes given. When no hole is given, attach the wire to an adjacent part so as not to interfere with the function of the parts. Refer to the recommendations Ref. AMM 70-22-00-911-002-A, Locking Procedures.

     (a) Wirelock the bolts (10) and (50) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (31) Apply a small amount of fuel system preventative (Material No.CP5066) on the nut to ferrule interface surfaces of the fuel nozzle, fuel supply tube, and drain tube.
   (32) TORQUE the coupling nut that connects the fuel nozzle to the fuel manifold three times, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) as follows:
     (a) TORQUE the coupling nut, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) .
     (b) Loosen the coupling nut one-half turn and TORQUE it again, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN )
     (c) Loosen the coupling nut one-half turn and TORQUE it again, to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) .
   (33) Wirelock the fuel tube coupling nut.

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

     (a) Wirelock the fuel tube coupling nut to the tab on the nozzle with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

NOTE: When the shroud nut is bottomed out, no more than two full threads should be exposed on the fuel nozzle.

   (34) Do a leak check of the fuel nozzles: (Ref. AMM TASK 73-11-40-790-002).
   (35) Wirelock the shroud coupling nut

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

     (a) Wirelock the shroud coupling nut to the nozzle with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

C. Installation of the HPTACC Manifold:
   (1) Remove the protective covers from the open ends of the HPTACC manifold (490), the open pads of the combustion case and the open ports of the HPTACC valve.
   (2) Install a serviceable AIPC 73-11-40-15-210 C-SEAL (680) on the upper combustion case pad. Align the holes in the C-seal (680) with the holes in the combustion case pad.
   (3) Install a serviceable C-seal (680) on the lower combustion case pad. Align the holes in the C-seal (680) with the holes in the combustion case pad.
   (4) Put the manifold (490) in position on the upper and lower combustion case pads.
   (5) Apply a thin layer of graphite grease (Material No.CP2101) to the threads and friction surfaces of the bolts (670), (720), (600), (550), (540).
   (6) Temporarily install the bolts (670) in the manifold (490) and the upper and lower combustion case pads. Do not tighten the bolts (670) at this time.
   (7) Install the bolts (720), nuts (690), serviceable AIPC 75-21-10-01-090 GASKET (700) and plate (710) between the forward 4-bolt pad of the HPTACC manifold (490) and the air manifold (730). Ensure that one AIPC 75-21-10-01-090 GASKET (700) is installed on each side of the plate (710) and that the bolt heads are on the forward side. TORQUE the bolts (720) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (8) Install the V-clamp (740) and a serviceable AIPC 75-21-10-01-120 SEAL (750) between the large forward port of the HPTACC manifold (490) and the discharge port of the HPTACC valve at 3 o'clock. TORQUE to between 80 and 70 lbf.in (0.90 and 0.79 m.daN ) .
   (9) TORQUE the bolts (670) at the upper combustion case pad to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (10) TORQUE the bolts (670) at the lower combustion case pad to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (11) Wirelock the bolts (670) at the upper combustion case pad with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia
   (12) Wirelock the bolts (670) at the lower combustion case pad with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (13) Put the strap clamp (780) on the HPTACC manifold (490) and the support bracket assembly (70) at the fuel nozzle in position 6. Install the bolts (790), washers (770), and nuts (760).
   (14) TORQUE the bolts (790) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (15) Put the strap clamp (610) on the HPTACC manifold (490) at the bracket (620) between flange R and flange S. Install the bolts (600).
   (16) TORQUE the bolts (600) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (17) Put the strap clamp (560) on the HPTACC manifold (490) at the bracket (570) at the combustion case end of the upper RH LPT cooling tube (440). Install the bolts (550), washers (580), and nuts (590).
   (18) TORQUE the bolts (550) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (19) Put the strap clamp (530) on the HPTACC manifold (490) at the bracket (520) at the combustion case end of the lower RH LPT cooling tube (410). Install the bolts (540), washers (510), and nuts (500).
   (20) TORQUE the bolts (540) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (21) If removed, install the LPTACC tube (470) as follows:
     (a) Remove the protective covers from the open ends of the LPTACC tube (470) and the open end of the LPTACC valve.
     (b) Ensure that the piston ring (650) is installed on the aft end of the LPTACC tube (470).
     (c) Carefully engage the aft end of the LPTACC tube (470) in the LPTACC air manifold.
     (d) Attach the forward end of the LPTACC tube (470) to the LPTACC valve with the clamp assembly (480). Hand tighten the nut on the clamp assembly.
     (e) Apply a thin layer of graphite grease (Material No.CP2101) to the threads and friction surfaces of the bolt (660).
     (f) Attach the LPTACC tube (470) to the support bracket assembly (70) at the fuel nozzle in position 6 with bolt (660), nut (630) and washer (640).
     (g) TORQUE the nut (630) to between 110 and 98 lbf.in (1.24 and 1.11 m.daN ) .
     (h) TORQUE the nut on the clamp assembly (480) to between 53 and 47 lbf.in (0.60 and 0.53 m.daN ) .
   (22) If removed, install the start bleed tube (280) as follows:
     (a) Remove the protective covers from the open ends of the start bleed tube (280), the open pad of the combustion case and the open port of the RACSB valve (260).
     (b) Apply a thin layer of graphite grease (Material No.CP2101) to the threads and friction surfaces of the bolts (290), (300), (330).
     (c) Install a serviceable AIPC 73-11-40-15-100 SEAL RING (310) on the combustion case pad. Align the holes in the seal ring (310) with the holes in the pad.
     (d) Put the start bleed tube in position on the combustion case pad. Temporarily install the bolts (300). Do not torque the bolts (300) at this time.
     (e) Install a serviceable AIPC 75-23-10-01-090 GASKET (270) between the end of the start bleed tube (280) and the RACSB valve (260).
     (f) Install the bolts (290) that attach the start bleed tube (280) to the RACSB valve (260).
     (g) TORQUE the bolts (290) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
     (h) TORQUE the bolts (300) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
     (i) Wirelock the bolts (300) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
     (j) Install the bolts (330), strap clamp (340), washers (350) and nuts (360) that attach the start bleed tube to the start bleed tube bracket (320).
     (k) TORQUE the bolts (320) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) .
   (23) If removed, install the strap clamps (170), (210), (390), (460) that attach the LPT cooling tubes (180), (230), (410), (440) to the LPT cooling brackets (60), (80), (90), (100) at fuel nozzles in positions 3, 8, 13, and 18 as follows:
     (a) Apply a thin layer of graphite grease (Material No.CP2101) to the threads and friction surfaces of the bolts (160), (220), (400), (450).
     (b) Install the bolts (160), (220), (400), (450) strap clamps (170), (210), (390), (460), washers (190), (240), (380), (430), and nuts (200), (250), (370), (420) on the LPT cooling brackets (60), (80), (90), (100) at the nozzle.
   (24) If removed or displaced, install the ignition leads and spark igniters as follows:
     (a) Install the left ignition lead into the hinged clamp on the LPT cooling bracket (90) at the fuel nozzle in position 13. Turn the attachment bolt of the hinged clamp a quarter of a turn to engage the locking feature, and continue to torque until the ignition lead no longer moves in the clamp (Ref. AMM TASK 74-21-20-400-002).
     (b) If removed, install the right ignition lead into the hinged clamps on the core engine. Turn the attachment bolt of the hinged clamp a quarter of a turn to engage the locking feature, and continue to torque until the ignition lead no longer moves in the clamp .
     (c) Remove protective covers and install the spark igniter (Ref. AMM TASK 74-21-30-400-002).
   (25) If removed, install the engine bleed air ducts (Ref. AMM TASK 36-11-49-400-044) or (Ref. AMM TASK 36-11-49-400-045) or (Ref. AMM TASK 36-11-49-400-046) or (Ref. AMM TASK 36-11-49-400-048).