Nacelle Standard Practices [CFMI]

TASK 70-60-00-910-042-A
Nacelle Standard Practices

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
This section contains standard practices for use in maintenance and repair tasks on the engine nacelle.
Read the applicable section of this manual to become familiar with items to be installed and procedures to be followed before work is done on the engine.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	BRUSH - BRISTLED
No specific	1	BRUSH - NYLON
No specific	1	PLIERS - CONNECTOR, JAW, SOFT
No specific	1	WIRE - SOFT, FLEXIBLE
No specific	1	WRENCH - STRAP

B. Consumable Materials

REFERENCE	DESIGNATION
CP 1041	isopropyl alcohol
(Material No.08BAA9)	Non Aqueous Cleaner-General - -

C. Referenced Information

REFERENCE	DESIGNATION
Electrical Connector Socket Tension
Engine Flanges
Engine Flange Hole Location
Engine Flange Hole Location

3. Job Set-up
Subtask 70-60-00-869-050-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Procedure
Subtask 70-60-00-640-050-A ** ON A/C NOT FOR ALL

A. Lubrication
(1) Lubricate packings with petrolatum or the fluid present in the system that is serviced (i.e. hydraulic fluid for the hydraulic system) prior to installation unless otherwise specified.
(2) Apply grease or anti-seize compound to fasteners as specified.
(3) Lubricate all pneumatic duct couplings with engine oil.

Subtask 70-60-00-912-053-A ** ON A/C NOT FOR ALL

B. Electrical Connector Cleaning
(1) Clean the electrical connector pins and connector face as follows:

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: CLEAN THE ELECTRICAL CONNECTORS ONLY WITH ISOPROPYL ALCOHOL (CP 1041). SOLVENT OTHER THAN ISOPROPYL ALCOHOL WILL DAMAGE THE CONNECTOR AND CAUSE POSSIBLE DAMAGE TO THE MATING COMPONENT.

(a) Flush the electrical connector with CP 1041isopropyl alcohol to remove contamination and other unwanted materials.
(b) Clean the electrical connector pins and connector face with CP 1041isopropyl alcohol and a natural BRUSH - BRISTLED.
(c) Flush the electrical connector again with CP 1041isopropyl alcohol to remove the remaining contamination and other unwanted materials. If heavily contaminated, repeat the steps as necessary to remove all contamination.
(d) Remove the remaining CP 1041isopropyl alcohol from the connector.
(e) Dry the electrical connector.

WARNING: WHEN YOU USE COMPRESSED AIR:

USE THE CORRECT PROTECTION (FACE SHIELD OR GOGGLES)
DO NOT POINT THE AIRFLOW AT YOURSELF OR OTHER PERSONS
DO NOT LET THE PRESSURE BE MORE THAN 30 PSIG (200 KPA).

LOOSE PARTICLES AND/OR HIGH PRESSURE AIR CAN CAUSE INJURY.

1 Allow the electrical connector to fully dry. If necessary, blow the electrical connector dry with clean, filtered air at a maximum pressure of 30 psi (2.07 bar).
(2) Clean the electrical connector socket contacts and connector face as follows:

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: CLEAN THE ELECTRICAL CONNECTORS ONLY WITH ISOPROPYL ALCOHOL (CP 1041). SOLVENT OTHER THAN ISOPROPYL ALCOHOL WILL DAMAGE THE CONNECTOR AND CAUSE POSSIBLE DAMAGE TO THE MATING COMPONENT.

(a) Flush the electrical connector with CP 1041isopropyl alcohol to remove contamination and other unwanted materials from the socket contacts and connector face.
(b) Clean the electrical connector.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: MAKE SURE YOU USE THE CORRECT SIZE MINIATURE NYLON BRUSH TO CLEAN THE ELECTRICAL CONNECTOR SOCKET CONTACTS. USE A MINIATURE NYLON BRUSH THAT IS SIZED FOR THE SPECIFIC SOCKET CONTACT. OTHERWISE, DAMAGE TO THE SOCKET CONTACT CAN OCCUR OR THE SOCKET CONTACTS WILL NOT BE SUFFICIENTLY CLEANED.

1 Clean the electrical connector socket contacts with CP 1041isopropyl alcohol and a miniature BRUSH - NYLON. Use a miniature nylon brush that is sized for the specific socket contact. Use a 0.031 in. (0.79 mm) brush for 20 gauge socket contacts and a 0.062 in. (1.57 mm) brush for 16 gauge socket contacts.
(c) Clean the electrical connector face with CP 1041isopropyl alcohol and a natural BRUSH - BRISTLED.
(d) Flush the electrical connector again with CP 1041isopropyl alcohol to remove the remaining contamination and other unwanted materials. If heavily contaminated, repeat the steps as necessary to remove all contamination.
(e) Remove the remaining CP 1041isopropyl alcohol from the connector.
(f) Dry the electrical connector.

WARNING: WHEN YOU USE COMPRESSED AIR:

USE THE CORRECT PROTECTION (FACE SHIELD OR GOGGLES)
DO NOT POINT THE AIRFLOW AT YOURSELF OR OTHER PERSONS
DO NOT LET THE PRESSURE BE MORE THAN 30 PSIG (200 KPA).

LOOSE PARTICLES AND/OR HIGH PRESSURE AIR CAN CAUSE INJURY.

1 Allow the electrical connector to fully dry. If necessary, blow the electrical connector dry with clean, filtered air at a maximum pressure of 30 psi (2.07 bar).

Subtask 70-60-00-280-050-A ** ON A/C NOT FOR ALL

C. Check of the Connector Socket Tension
(1) (Preferred method) Do a check of the connector socket tension using a spring scale capable of measuring 0.6 oz (17.01 g) to 1.5 oz (42.52 g) and a locally-manufactured pin.
(a) Locally manufacture the pin.

Electrical Connector Socket Tension ** ON A/C NOT FOR ALL

(b) Install the locally-manufactured pin in the female connector.
(c) Attach the spring scale to the pin.

Electrical Connector Socket Tension ** ON A/C NOT FOR ALL

(d) Pull upward on the pin with the spring scale.
(e) Measure the force required to pull the pin out of the female connector.
1 The force must be more than 1.5 oz (42.52 g) for a no. 16 wire pin.
2 The force must be more than 0.6 oz (17.01 g) for a no. 20 wire pin.
(f) Replace the female connector if the force necessary to remove the pin is less than the limits in step (1).(e). above.
(2) (Alternate method) Do a check of the connector contact tension using a weight of 0.6 oz (17.01 g) to 1.5 oz (42.52 g) and a locally-manufactured pin.

NOTE: Use this method if you do not have a spring scale.

(a) Locally manufacture the pin.

Electrical Connector Socket Tension ** ON A/C NOT FOR ALL

(b) Attach a weight to the pin with a WIRE - SOFT, FLEXIBLE.
1 Attach a 1.5 oz (42.52 g) weight for a no. 16 wire pin.
2 Attach a 0.6 oz (17.01 g) weight for a no. 20 wire pin.
(c) With the female connector facing down, install the locally-manufactured pin in the female connector. Let the weight hang free below the connector.
(d) Replace the connector if the weight pulls the pin out of the female connector.
(3) Replace the wiring harness if defects cannot be repaired. See the applicable removal/installation procedure for each wiring harness.

Subtask 70-60-00-420-050-A ** ON A/C NOT FOR ALL

D. Electrical Wire Harness Installation
(1) Make sure there is enough slack in the wire harness to prevent stress on wire harness connectors and receptacles.
(2) Make sure there is maximum clearance between wire harnesses and hot sections of the engine.
(3) Install protective covers over the open ends of connectors and receptacles.
(4) Install connectors carefully to prevent damage to connector pins.
(5) Tighten self-locking electrical connectors as follows:
(a) Make sure the electrical connector is clean and in satisfactory condition.
(b) Align the master-key (largest key) on the connector with the master-key in the receptacle.
(c) Use light hand pressure and push the connector into the receptacle. Turn the coupling nut of the connector in a clockwise direction to engage the connector threads.
(d) Tightening the connector.

CAUTION: YOU MUST NOT STOP AT THE COLORED COUPLING INDICATOR LINE ON THE RECEPTACLE WHEN YOU TIGHTEN THE CONNECTOR. IF YOU STOP AT THE COLORED LINE THE CONNECTION WILL NOT BE TIGHT. THIS CAN CAUSE MECHANICAL AND/OR ELECTRICAL FAILURE.

1 With the threads correctly engaged, continue to turn the coupling nut clockwise with your hand until the connection is tight. Make sure that the colored coupling indicator line on the receptacle cannot be seen when the connection if fully tight.

NOTE: If you move the connector from side to side when you turn the coupling nut it will make it easier to tighten.

(e) Tightening the connector.

CAUTION: YOU MUST NOT USE PLIERS WITH METAL JAWS TO TIGHTEN OR LOOSEN THE CONNECTOR. THE METAL JAWS WILL CAUSE DAMAGE TO THE CONNECTOR.

1 Turn the connector ring 1/8 to 1/4 turn with PLIERS - CONNECTOR, JAW, SOFT or a WRENCH - STRAP to ensure the connector is tight. Stop before the pliers or WRENCH - STRAP slip on the connector ring.
(6) Remove oil, grease, dirt, and other surface contaminants with a clean cotton cloth dampened with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(7) Remove paint and primer coatings from attach hole areas before installing jumpers.
(8) Clamp sizes needed for installation may vary from those called out in a procedure.
(a) Variations in wire diameter between different vendors'wire, as well as variations in the position of the wire bundle, can change the bundle size at any given point.
(b) Installation of a wire bundle may require a variation in clamp size, either one size larger, or one size smaller than the size indicated.
(c) If necessary, wind tape (material No. CP2208) around the harness where the clamp is to be installed to make sure the clamp fits correctly.

Subtask 70-60-00-420-051-A ** ON A/C NOT FOR ALL

E. Tubes Installation
(1) Proper alignment must be maintened between tube components to make sure the threaded parts are put together correctly.
(2) Install protective covers over open ends of tubes.

Subtask 70-60-00-911-050-A ** ON A/C NOT FOR ALL

F. Dissimilar Metals Protection
(1) Cleaning:
(a) Clean touching surfaces with clean wipers dampened with ethyl acetate, and wipe dry immediately with clean, dry wipers.
(2) Apply coat:

CAUTION: DO NOT USE CHLORINATED SOLVENTS ON TITANIUM PARTS.

(a) Apply one coat of primer to touching surfaces of bracket and mounting surface, and install.
(b) Apply wet coat of primer to bolts before installation.

Subtask 70-60-00-911-051-A ** ON A/C NOT FOR ALL

G. Lockwire
(1) Use double-twist lockwiring in accordance with operator standard practices.

Subtask 70-60-00-360-050-A ** ON A/C NOT FOR ALL

H. Liquid Shim
(1) The drain mast on the CFM56-5 engine has a layer of liquid shim between it and the drain module to prevent fluid leakage. If the shim layer is damaged or broken, it must be re-applied as follows.
(2) Prepare the surface of the drain mast as follows:
(a) Sand the mast surface that contacts the drain module with 180-grit or finer abrasive paper to remove the shim.
(b) Blow clean with oil free, filtered air.
(3) Apply a coating of release agent to the area on the drain module that touches the drain mast.
(4) Mix the shim material in accordance with the manufacture's instructions.
(5) Apply the shim material to the drain mast.
(6) Put the parts together slowly and apply pressure so that trapped air and excess shim material will squeeze out.
(7) Install fasteners, tighten, but do not torque.
(8) Wipe excess shim material from joined parts.
(9) Allow shim to cure:
(a) Full cure is complete afer seven days.
(b) Torque fasteners after 24 hours at room temperature, or two hours at 150 deg.F (65.5 deg.C) to between 200 deg.F (93.3 deg.C).

Subtask 70-60-00-869-051-A ** ON A/C NOT FOR ALL

I. Engine Flange Identification.

Engine Flanges ** ON A/C NOT FOR ALL

(1) Engine Flange Hole Identification:
(a) Throughout this manual various equipment items and brackets are installed on engine flanges using numbered bolt holes.

Engine Flange Hole Location ** ON A/C NOT FOR ALL

(b) Some fan case flanges have "absent" bolt holes. The distance between existing bolt holes will be double the average bolt hole spacing. The absent hole must be counted as if it were an actual hole.
(c) Some flanges have two holes at the same location. The hole number is the same for each hole.

Engine Flange Hole Location ** ON A/C NOT FOR ALL

(d) To find the location of a hole used in an installation procedure, do the following:
1 Count down from the first hole on the flange to the right or left of the top centerline of the engine.
2 Count the equally spaced holes until the required hole is reached.

Subtask 70-60-00-911-052-A ** ON A/C NOT FOR ALL

J. Torque Value Tables
(1) Torque values for hydraulic, nonpositional tube fittings (unions, reducers), positionable tube fittings, and AN924 jamnuts.

----------------------------------------------------------------------------

!NOMINAL ! OUTSIDE ! NON-POSITIONAL !POSITIONAL FITTINGS !

!SIZE ! DIAMETER ! FITTINGS ! AND JAMNUTS !

!---------!------------!----------------------------!----------------------!

! ! INCHES ! lbf.in (m.daN) ! lbf.in (m.daN) !

----------------------------------------------------------------------------

!- 2 ! 1/8 ! 70-75 (0.79-0.85) ! !

!---------!------------!----------------------------!----------------------!

!- 3 ! 3/16 ! 80-90 (0.90-1.02) ! !

!---------!------------!----------------------------!----------------------!

!- 4 ! 1/4 ! 115-125 (1.30-1.41) ! 100-110 (1.13-1.24)!

!---------!------------!----------------------------!----------------------!

!- 5 ! 5/16 ! 160-175 (1.81-1.98) ! 135-150 (1.53-1.70)!

!---------!------------!----------------------------!----------------------!

!- 6 ! 3/8 ! 270-300 (3.05-3.39) ! 180-200 (2.03-2.26)!

!---------!------------!----------------------------!----------------------!

!- 8 ! 1/2 ! 540-600 (6.10-6.78) ! 280-310 (3.16-3.50)!

!---------!------------!----------------------------!----------------------!

!- 10 ! 5/8 ! 630-700 (7.12-7.91) ! 540-600 (6.10-6.78)!

!---------!------------!----------------------------!----------------------!

!- 12 ! 3/4 ! 810-910 (9.15-10.28)! 660-735 (7.46-8.30)!

!---------!------------!----------------------------!----------------------!

!- 16 ! 1 ! 900-1000 (10.17-11.30)!900-1000 (10.17-11.30)!

!---------!------------!----------------------------!----------------------!

!- 20 ! 1-1/4 ! 900-1000 (10.17-11.30)!900-1000 (10.17-11.30)!

!---------!------------!----------------------------!----------------------!

!- 24 ! 1-1/2 ! 900-1000 (10.17-11.30)!900-1000 (10.17-11.30)!

!---------!------------!----------------------------!----------------------!

!- 28 ! 1-3/4 ! 900-1000 (10.17-11.30)!900-1000 (10.17-11.30)!

!---------!------------!----------------------------!----------------------!

!- 32 ! 2 ! 900-1000 (10.17-11.30)!900-1000 (10.17-11.30)!

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(2) Torque values for nonhydraulic, nonpositional tube fittings (unions, reducers), positionable tube fittings, and AN924 jamnuts.

---------------------------------------------------------------------------

! ! OUTSIDE ! ! !

!NOMINAL ! DIAMETER ! ! !

! SIZE ! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

!- 2 ! 1/8 ! 68-75 ! 0.77-0.85 !

!----------!--------------!--------------------!--------------------------!

!- 3 ! 3/16 ! 80-90 ! 0.90-1.02 !

!----------!--------------!--------------------!--------------------------!

!- 4 ! 1/4 ! 90-100 ! 1.02-1.13 !

!----------!--------------!--------------------!--------------------------!

!- 5 ! 5/16 ! 120-130 ! 1.36-1.47 !

!----------!--------------!--------------------!--------------------------!

!- 6 ! 3/8 ! 125-140 ! 1.41-1.58 !

!----------!--------------!--------------------!--------------------------!

!- 8 ! 1/2 ! 215-240 ! 2.43-2.71 !

!----------!--------------!--------------------!--------------------------!

!- 10 ! 5/8 ! 360-400 ! 4.07-4.52 !

!----------!--------------!--------------------!--------------------------!

!- 12 ! 3/4 ! 390-430 ! 4.41-4.86 !

!----------!--------------!--------------------!--------------------------!

!- 16 ! 1 ! 810-900 ! 9.15-10.17 !

!----------!--------------!--------------------!--------------------------!

!- 20 ! 1-1/4 ! 810-900 ! 9.15-10.17 !

!----------!--------------!--------------------!--------------------------!

!- 24 ! 1-1/2 ! 900-1000 ! 10.17-11.30 !

!----------!--------------!--------------------!--------------------------!

!- 28 ! 1-3/4 ! 900-1000 ! 10.17-11.30 !

!----------!--------------!--------------------!--------------------------!

!- 32 ! 2 ! 900-1000 ! 10.17-11.30 !

---------------------------------------------------------------------------

(3) Torque values for flared tube steel coupling nuts.

---------------------------------------------------------------------------

! DASH ! OUTSIDE DIAMETER ! TORQUE VALUE ! TORQUE VALUE !

!----------!------------------!-----------------!-------------------------!

! SIZE ! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

! - 2 ! 1/8 ! 75-85 ! 0.85-0.96 !

!----------!------------------!-----------------!-------------------------!

! - 3 ! 3/16 ! 95-105 ! 1.07-1.19 !

!----------!------------------!-----------------!-------------------------!

! - 4 ! 1/4 ! 135-150 ! 1.53-1.70 !

!----------!------------------!-----------------!-------------------------!

! - 5 ! 5/16 ! 170-200 ! 1.92-2.26 !

!----------!------------------!-----------------!-------------------------!

! - 6 ! 3/8 ! 270-300 ! 3.05-3.39 !

!----------!------------------!-----------------!-------------------------!

! - 8 ! 1/2 ! 450-500 ! 5.08-5.65 !

!----------!------------------!-----------------!-------------------------!

! - 10 ! 5/8 ! 650-700 ! 7.34-7.91 !

!----------!------------------!-----------------!-------------------------!

! - 12 ! 3/4 ! 900-1000 ! 10.17-11.30 !

!----------!------------------!-----------------!-------------------------!

! - 16 ! 1 ! 1200-1400 ! 13.56-15.82 !

!----------!------------------!-----------------!-------------------------!

! - 20 ! 1-1/4 ! 1520-1680 ! 17.17-18.98 !

!----------!------------------!-----------------!-------------------------!

! - 24 ! 1-1/2 ! 1900-2100 ! 21.47-23.73 !

!----------!------------------!-----------------!-------------------------!

! - 32 ! 2 ! 2660-2940 ! 30.05-33.22 !

---------------------------------------------------------------------------

NOTE: 1. Tube nominal size or outside diameter determines the amount of torque required.
2. Hold connector hex with wrench when tightening or loosening B-nut.

(4) Torque values for flareless tube steel coupling nuts.

--------------------------------------------------------------------------

! NOMINAL SIZE ! DASH ! OUTSIDE DIAMETER ! TORQUE VALUE ! TORQUE VALUE !

!--------------!-------!-------------------!--------------!--------------!

! INCHES ! SIZE ! INCHES ! lbf.in ! m.daN !

--------------------------------------------------------------------------

! 7/16 ! - 3 ! 3/16 ! 90-100 ! 1.02-1.13 !

!--------------!-------!-------------------!--------------!--------------!

! 9/16 ! - 4 ! 1/4 ! 100-125 ! 1.13-1.41 !

!--------------!-------!-------------------!--------------!--------------!

! 5/8 ! - 5 ! 5/16 ! 150-175 ! 1.69-1.98 !

!--------------!-------!-------------------!--------------!--------------!

! 11/16 ! - 6 ! 3/8 ! 200-250 ! 2.26-2.82 !

!--------------!-------!-------------------!--------------!--------------!

! 7/8 ! - 8 ! 1/2 ! 500-600 ! 5.65-6.78 !

!--------------!-------!-------------------!--------------!--------------!

! 1 ! - 10 ! 5/8 ! 600-700 ! 6.78-7.91 !

!--------------!-------!-------------------!--------------!--------------!

! 1-1/4 ! - 12 ! 3/4 ! 800-900 ! 9.04-10.17 !

!--------------!-------!-------------------!--------------!--------------!

! 1-1/2 ! - 16 ! 1 ! 850-950 ! 9.60-10.73 !

!--------------!-------!-------------------!--------------!--------------!

! 2 ! - 20 ! 1-1/4 ! 900-1000 ! 10.17-11.3 !

!--------------!-------!-------------------!--------------!--------------!

! 2-1/4 ! - 24 ! 1-1/2 ! 1450-1550 ! 16.38-17.51 !

--------------------------------------------------------------------------

NOTE: 1. Tube nominal size or outside diameter determines the amount of torque required.
2. Hold connector hex with wrench when tightening or loosening nut.

(5) Torque values for screws, bolts, and studs with castellated nuts (MS21042, MS21043, NAS679, Specification 48 FT) and low height nutplaces are tabulated below.

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! TORQUE VALUE ! TORQUE VALUE !

!----------------------!-----------------------!--------------------------!

! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

! 6-32 ! 8-10 ! 0.09-0.11 !

!----------------------!-----------------------!--------------------------!

! 8-32 ! 12-15 ! 0.14-0.17 !

!----------------------!-----------------------!--------------------------!

! 10-32 ! 20-25 ! 0.23-0.28 !

!----------------------!-----------------------!--------------------------!

! 1/4-28 ! 50-70 ! 0.56-0.79 !

!----------------------!-----------------------!--------------------------!

! 5/16-24 ! 100-140 ! 1.13-1.58 !

!----------------------!-----------------------!--------------------------!

! 3/8-24 ! 160-190 ! 1.81-2.15 !

!----------------------!-----------------------!--------------------------!

! 7/16-20 ! 450-500 ! 5.08-5.65 !

!----------------------!-----------------------!--------------------------!

! 1/2-20 ! 480-690 ! 5.42-7.80 !

!----------------------!-----------------------!--------------------------!

! 9/16-18 ! 800-1000 ! 9.04-11.30 !

!----------------------!-----------------------!--------------------------!

! 5/8-18 ! 1100-1300 ! 12.43-14.69 !

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! TORQUE VALUE ! TORQUE VALUE !

!----------------------!---------------------!----------------------------!

! INCHES ! lbf.ft ! m.daN !

---------------------------------------------------------------------------

! 3/4-16 ! 190-210 ! 25.76-28.47 !

!----------------------!---------------------!----------------------------!

! 7/8-14 ! 210-250 ! 28.47-33.90 !

!----------------------!---------------------!----------------------------!

! 1-12 ! 310-460 ! 42.03-62.37 !

!----------------------!---------------------!----------------------------!

! 1-1/8-12 ! 415-585 ! 56.27-79.31 !

!----------------------!---------------------!----------------------------!

! 1-1/4-12 ! 750-915 ! 101.69-124.06 !

---------------------------------------------------------------------------

(6) Torque values for AN316 shear-type nuts, and aluminium nuts are tabulated below.

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! TORQUE VALUE ! TORQUE VALUE !

!-----------------------!---------------------!---------------------------!

! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

! 6-32 ! 5-7 ! 0.06-0.08 !

!-----------------------!---------------------!---------------------------!

! 8-32 ! 8-10 ! 0.09-0.11 !

!-----------------------!---------------------!---------------------------!

! 10-32 ! 12-15 ! 0.14-0.17 !

!-----------------------!---------------------!---------------------------!

! 1/4-28 ! 30-42 ! 0.34-0.47 !

!-----------------------!---------------------!---------------------------!

! 5/16-24 ! 60-84 ! 0.68-0.95 !

!-----------------------!---------------------!---------------------------!

! 3/8-24 ! 96-114 ! 1.08-1.29 !

!-----------------------!---------------------!---------------------------!

! 7/16-20 ! 270-300 ! 3.05-3.39 !

!-----------------------!---------------------!---------------------------!

! 1/2-20 ! 288-414 ! 3.25-4.68 !

!-----------------------!---------------------!---------------------------!

! 9/16-18 ! 480-600 ! 5.42-6.78 !

!-----------------------!---------------------!---------------------------!

! 5/8-18 ! 660-780 ! 7.46-8.81 !

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! TORQUE VALUE ! TORQUE VALUE !

!-------------------------------------------------------------------------!

! INCHES ! lbf.ft ! m.daN !

---------------------------------------------------------------------------

! 3/4-16 ! 114-126 ! 15.46-17.08 !

!------------------------!--------------------!---------------------------!

! 7/8-14 ! 126-150 ! 17.08-20.34 !

!------------------------!--------------------!---------------------------!

! 1-12 ! 186-276 ! 25.22-37.42 !

!------------------------!--------------------!---------------------------!

! 1-1/8-12 ! 249-351 ! 33.76-47.59 !

!------------------------!--------------------!---------------------------!

! 1-1/4-12 ! 450-549 ! 61.01-74.43 !

---------------------------------------------------------------------------

(7) Torque values for screws, bolts, and studs with NAS 158 bolts are tabulated below.

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! *TORQUE VALUE ! *TORQUE VALUE !

!-----------------------!----------------------!--------------------------!

! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

! 10-32 ! 45-50 ! 0.51-0.56 !

!-----------------------!----------------------!--------------------------!

! 1/4-28 ! 80-100 ! 0.90-1.13 !

!-----------------------!----------------------!--------------------------!

! 5/16-24 ! 145-200 ! 1.64-2.26 !

!-----------------------!----------------------!--------------------------!

! 3/8-24 ! 240-280 ! 2.71-3.16 !

!-----------------------!----------------------!--------------------------!

! 7/16-20 ! 670-720 ! 7.57-8.13 !

!-----------------------!----------------------!--------------------------!

! 1/2-20 ! 700-1000 ! 7.91-11.30 !

!-----------------------!----------------------!--------------------------!

! 9/16-18 ! 1200-1400 ! 13.56-15.82 !

!-----------------------!----------------------!--------------------------!

! 5/8-18 ! 1680-1860 ! 18.98-21.01 !

---------------------------------------------------------------------------

* Do not use for shear heat bolts.

---------------------------------------------------------------------------

! THREAD ! ! !

! NOMINAL SIZE ! *TORQUE VALUE ! *TORQUE VALUE !

!------------------------!-------------------!----------------------------!

! INCHES ! lbf.in ! m.daN !

---------------------------------------------------------------------------

! 3/4-16 ! 280-300 ! 37.96-40.67 !

!------------------------!-------------------!----------------------------!

! 7/8-14 ! 300-360 ! 40.67-48.81 !

!------------------------!-------------------!----------------------------!

! 1-12 ! 450-665 ! 61.01-90.16 !

!------------------------!-------------------!----------------------------!

! 1-1/8-12 ! 605-845 ! 82.03-114.57 !

!------------------------!-------------------!----------------------------!

! 1-1/4-12 ! 1085-1320 ! 147.10-178.97 !

---------------------------------------------------------------------------

* Do not use for shear head bolts.

Subtask 70-60-00-869-052-A ** ON A/C NOT FOR ALL

K. Special Tools, Fixtures, and Equipment
(1) The following is a tabulation of ground support equipment (GSE) used during engine and nacelle maintenance.

NAME	PART NO.	USAGE
Wrench, Spanner	RSE1098-1	Tighten and torque AFT engine mount nuts
Wrench, Spanner	RSE1098-5	Tighten and torque AFT engine mount nuts
Sling, Inlet Cowl	RSE1112	Hoist inlet cowl
Cover, Inlet Cowl	RSE1114	Cover inlet cowl
Dolly, Inlet Cowl and Workstand	RSE1116	Transport and provide workstand for inlet cowl
Centerbody Support Fixture	RSE1129	Support centerbody
Nozzle Support	RSE1130	Support nozzle
Fixture
Sling, Nozzle	RSE1133	Hoist nozzle
Dolly, Nozzle	RSE1134	Transport and store nozzle
Wrench, Spanner, Anti-Ice Duct	RSE1147	Tighten and torque anti-ice seal nut
Aft Engine Mount Anti Gouge Splint	RSE1224	To protect engine and aft mount when engine is removed.

NOTE: For additional information regarding the above items, see Tools and Equipment Manual.

Subtask 70-60-00-869-053-A ** ON A/C NOT FOR ALL

L. Consumable materials

NAME	SPECIFICATION	USE
Alcohol, Polyvinyl Ethyl Acetate	S-122 TT-E-751	Release agent. Clean surface prior to dissimilar metals protection.
Grease, Graphite	MIL-T-5544	Lubrication of bolts.
Hydraulic Fluid	Aerospatiale Spec. NO. 307.110	Hydraulic system fluid.
Liquid Shim	EA-934NA	Drain mast shim.
Lubricant, Anti-Seize (Molybdenum Disulfide)	MIL-L-25681	Bolt threads, high temperature.
Lubricant, Dry Film (Moly Kote 3402, Kal- Gard AD, Perma Silk G. Lubri-Bond 220, Surf-Kote A5021)	MIL-L-23398	Pneumatic duct couplings.
Lubricant, Oil	MIL-L-7808 MIL-L-23699	Engine oil system, general.
Oil, Lubricating Molybdenum Disulfide, Silicone Base	MIL-L-25681	General purpose.
Paper, Abrasive	180 grit	Abrading surface.
Petrolatum	VVP-236	Packing lubricant.
Primer, Epoxy Polyamide	MIL-P-23377	Dissimilar metals protection, coat mating surfaces, and wet installation of fasteners.
Primer, Thread (Locquic, Grade T)	MIL-S-22473	Fitting threads, cleaner.
Sealant, Silicone	MIL-S-38249	Engine and pylon firewalls.
Tape, Tying, Glass Fiber	MIL-T-43435	Tie electrical wire bundles.
Lotoxane	None	Clean surface for electrical bonding.
Wipers, Cotton	None	General cleaning requirements.

[Rev.10 from 2021] 2026.04.01 02:18:40 UTC