PWS2_AIRCRAFT LUBRICATION..pdf

PDF 720 KB Posted Aug 10, 2026

Attached to: Aircraft Wash and Lubrication Operations
Solicitation number: FA664826Q0008
Issued by: Department of the Air Force Reserve Command

About this file

Written by GovTribe AI · Aug 10, 2026

This document is a maintenance and lubrication procedure manual for aircraft landing gear systems, containing detailed technical instructions and illustrated diagrams for three primary landing gear assemblies: nose landing gear, main landing gear, and speed brake systems.

The nose landing gear lubrication section specifies 11 lubrication points using grease (MIL-G-21164 or MIL-PRF-23827), including fittings for the drag brace fuselage attachment, drag pin assembly, steering collar assembly, steering actuator components, strut housing assembly, and beam assembly. The main landing gear lubrication section details 24 procedures across multiple component areas, requiring both grease and oil lubricants (MIL-G-21164, MIL-PRF-23827, and MIL-PRF-32033), with specific callouts for shock strut fittings, tension strut assemblies, drag brace components, door hinges, uplock mechanisms, and actuator piston rods. Additional procedures include lubrication of shock strut and tension strut bulkhead fittings using molybdenum disulfide grease or aircraft grease, and drag brace toggle assemblies and center link assemblies. The speed brake lubrication section comprises five procedures addressing upper and lower door hinge assemblies, link assemblies, upper seal and link assemblies, and fairing and rod assemblies using grease (MIL-G-21164 or MIL-PRF-23827) and oils (MIL-PRF-32033 or MIL-PRF-7808). Critical requirements include pre-lubrication inspection of all fittings for damage and serviceability, replacement of damaged grease fittings before lubrication, torque specifications of 10-20 inch-pounds for fitting installation, and procedures performed with aircraft on fuselage jacks before operational checkout for phased inspections.

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All landing gear component lubrication points shall be in-spected for damage, security, and serviceability prior to lubri-cation. Any damaged grease fittings shall be replaced prior to lubrication. Any grease fittings that cannot be replaced or secured during replacement will be cause for component replacement.

1. Inspect lubrication fittings for damage, security, and serviceability.

NOTE

• Lubrication performed to fulfill phased inspection require-ments shall be accomplished with aircraft on fuselage jacks and before landing gear operational checkout. Not applicable to aircraft authorized to be inspected under contingency phase criteria.

• Lubricant shall be forced from flanges of both forward and aft bushings in drag brace fuselage attachment fitting until new grease is evident at both locations.

NOSE LANDING GEAR LUBRICATION.

AM−12JG−00−2−7111X40

1. FITTING

2. Lubricate drag brace fuselage attachment fitting using grease (MIL- G-21164 or MIL-PRF-23827).

3. Lubricate drag pin assembly fitting using grease (MIL-G-21164 or

MIL-PRF-23827).

4. Lubricate two steering collar assembly fittings using grease (MIL- G-21164 or MIL-PRF-23827).

5. Lubricate two steering actuator mounting trunnion fittings using grease (MIL-G-21164 or MIL-PRF-23827).

6. Lubricate two strut housing assembly fittings using grease (MIL- G-21164 or MIL-PRF-23827).

7. Lubricate beam assembly fitting (right side) using grease (MIL-G- 21164 or MIL-PRF-23827).

8. Lubricate aft nose landing gear door hinge fitting using grease (MIL-G-21164 or MIL-PRF-23827).

9. Lubricate forward nose landing gear door hinge pin fitting using grease (MIL-G-21164 or MIL-PRF-23827).

10. Lubricate two steering actuator attachment pin fittings using grease (MIL-G-21164 or MIL-PRF-23827).

11. Lubricate steering actuator rod end fitting using grease (MIL-G- 21164 or MIL-PRF-23827).

FITTING

FORWARD HINGE PIN

FITTING

10.

DRAG BRACE

FITTING

DRAG PIN

FITTING

AFT HINGE

FITTING

STEERING

ACTUATOR

PIN FITTING

11. STEERING ACTUATOR

ROD END FITTING

STRUT HOUSING

ASSEMBLY

BEAM

ASSEMBLY

(RIGHT SIDE)

STEERING ACTUATOR

MOUNTING

STEERING COLLAR4.

TRUNNION

STRUT HOUSING

ASSEMBLY

FITTING

ATTACHMENT

ASSEMBLY

FITTING

A−12JG−00−2−7111X99

12. Lubricate four upper drag brace fittings using grease (MIL-G-21164 or MIL-PRF-23827).

13. Lubricate downlock toggle pivot fitting using grease (MIL-G-21164 or MIL-PRF-23827).

14. Lubricate four downlock link pivot pin fittings (two left side and two right side) using grease (MIL-G-21164 or MIL-PRF-23827).

15. Lubricate two lower drag brace attachment lugs using grease (MIL- G-21164 or MIL-PRF-23827).

16. Lubricate two lower drag brace fittings using grease (MIL-G-21164 or MIL-PRF-23827).

NOTE

Lubricant shall be forced from beam assembly bushing flange face.

17. Lubricate beam assembly fitting (left side) using grease (MIL-G- 21164 or MIL-PRF-23827).

18. Lubricate four upper torque arm fittings using grease (MIL-G- 21164 or MIL-PRF-23827).

19. Lubricate four lower torque arm fittings using grease (MIL-G- 21164 or MIL-PRF-23827).

20. Lubricate retract actuator piston rod using oil (MIL-PRF-32033).

21. Lubricate downlock actuator spring and piston using oil (MIL-PRF- 32033).

22. Lubricate door actuator piston rod using oil (MIL-PRF-32033).

23. Disconnect retract actuator rod end if required to access grease fitting (JG32-39-01).

24. Lubricate retract actuator fitting using grease (MIL-G-21164 or

MIL-PRF-23827).

25. Connect retract actuator rod end if disconnected (JG32-39-01).

RETRACT

ACTUATOR

DOWNLOCK

TOGGLE

PIVOT

DOOR ACTUATOR

PISTON ROD

DOWNLOCK LINK

PIVOT PIN

FITTING

RETRACT

ACTUATOR

LOWER

DRAG BRACE

UPPER TORQUE

ARM FITTING

LOWER TORQUE

ARM FITTING

PISTON ROD

ATTACHMENT

LUG

LOWER DRAG

14.

15.

16.

18.

19.

22.

24.20.

13.

FITTING

ROTATED 180°

DOWNLOCK LINK14.

PIVOT PIN FITTING

BRACE FITTING

DOWNLOCK ACTUATOR

SPRING

21.

PISTON

A−12JG−00−2−7112X99

BEAM ASSEMBLY

(LEFT SIDE)

UPPER DRAG

BRACE FITTING

12.

17.

MAIN LANDING GEAR LUBRICATION.

• All landing gear component lube points shall be inspected for damage, security, and serviceability prior to lubrication.

Any damage to high-pressure fittings shall be cause for component replacement. Failure to comply may result in damage to landing gear components.

• Inspect all fittings for serviceability prior to lubrication.

Inspect all non-pressed low and high-pressure lubrication fitting (part number MS15001-1) for damage, security, and serviceability. Replace if necessary. Inspect the threaded bore for damage prior to installing fitting. Torque fitting 10-20 inch-pounds. Torque exceeding 20 inch-pounds may damage landing gear threaded bore requiring replacement of landing gear components.

1. Inspect lubrication fittings for damage, security, and serviceability.

FITTING1.

(TYPICAL)

AM−12JG−00−2−7112X40

NOTE

• Lubrication performed to fulfill phased inspection require-ments shall be accomplished with aircraft on fuselage jacks (JG07-10-01) and before landing gear operational checkout (JG32-00-01). Not applicable to aircraft authorized to be inspected under contingency phase criteria.

• Lubrication procedures for left and right main landing gears are identical; therefore, only right procedure is given.

• Shock strut fitting is located on shock strut aft surface on right side and located on forward surface on left side.

2. Lubricate fitting at upper end of main landing gear shock strut using grease (MIL-G-21164 or MIL-PRF-23827).

NOTE

Grease shall be forced from flanges of both forward and aft bushings in tension strut attachment pin.

3. Lubricate fitting at upper end of tension strut using grease (MIL- G-21164 or MIL-PRF-23827).

4. Lubricate retract actuator fitting using grease (MIL-G-21164 or

MIL-PRF-23827).

5. Lubricate retract actuator rod end fitting using grease (MIL-G- 21164 or MIL-PRF-23827).

6. Lubricate two drag pin bulkhead fittings using grease (MIL-G- 21164 or MIL-PRF-23827).

7. Lubricate four upper drag brace fittings and drag pin fitting using grease (MIL-G-21164 or MIL-PRF-23827).

8. Lubricate two lower drag brace (upper end) fittings using grease (MIL-G-21164 or MIL-PRF-23827).

9. Lubricate eight tension strut collar fittings using grease (MIL-G- 21164 or MIL-PRF-23827).

10. Lubricate four fittings at lower end of tension strut using grease (MIL-G-21164 or MIL-PRF-23827).

UPPER SHOCK

STRUT FITTING

RETRACT

ACTUATOR

ROD END

FITTING

LOWER END

TENSION

STRUT

10.

RETRACT ACTUATOR4. DRAG PIN

FITTING

8. LOWER DRAG

BRACE FITTING

(UPPER END)

LOWER END

TENSION STRUT

FITTING

10. UPPER END

TENSION STRUT

FITTING

UPPER DRAG

BRACE FITTING

TENSION STRUT

COLLAR

DRAG PIN

BULKHEAD

FITTING

UPPER DRAG

BRACE FITTING

A−12JG−00−2−7121X99

11. Lubricate lower shock strut (outboard fittings only) using grease

12. Lubricate connecting link assembly and connecting link pin fittings using grease (MIL-G-21164 or MIL-PRF-23827).

13. Lubricate downlock actuator spring and piston using oil (MIL-PRF- 32033).

11.

CONNECTING LINK

ASSEMBLY FITTING

12.

CONNECTING LINK

PIN FITTING

(OUTBOARD ONLY)

ACTUATOR

DOWNLOCK

SPRING

PISTON

13.

LOWER SHOCK STRUT FITTING

A−12JG−00−2−7122X99

14. Lubricate main landing gear door aft hinge fitting using grease

15. Lubricate main landing gear door middle hinge fitting using grease (MIL-G-21164 or MIL-PRF-23827).

16. Lubricate main landing gear door actuator support fitting using grease (MIL-G-21164 or MIL-PRF-23827).

17. Lubricate main landing gear door aft beam fitting using grease (MIL-G-21164 or MIL-PRF-23827).

18. Lubricate four main landing gear uplock lower link fittings using grease (MIL-G-21164 or MIL-PRF-23827).

19. Lubricate two main landing gear uplock upper link fittings using grease (MIL-G-21164 or MIL-PRF-23827).

20. Lubricate main landing gear uplock hook assembly fitting using grease (MIL-G-21164 or MIL-PRF-23827).

21. Lubricate four uplock bracket assembly fittings using grease (MIL- G-21164 or MIL-PRF-23827).

22. Lubricate retract actuator piston rod using oil (MIL-PRF-32033).

23. Lubricate door actuator piston rod using oil (MIL-PRF-32033).

VIEW LOOKING UP

AFT BEAM

FITTING

17.

UPLOCK LOWER

LINK FITTING

18.

UPLOCK

BRACKET

FITTING

21.

UPLOCK HOOK

ASSEMBLY

FITTING

20.

UPLOCK LOWER

LINK FITTING

18.

UPLOCK UPPER

LINK FITTING

19.

UPLOCK

BRACKET

FITTING

21.

DOOR

ACTUATOR

PISTON

ROD

23.

ACTUATOR

SUPPORT

FITTING

16.

MIDDLE

HINGE

FITTING

15.

AFT HINGE

FITTING

14.

ROTATED 180°

RETRACT

ACTUATOR

PISTON ROD

22.

A−12JG−00−2−7123X99

24. Lubricate JFS pump handle piston rod using preservative oil.

PISTON ROD24.

A−12JG−00−2−7124X99

25. Lubricate two shock strut bulkhead fittings using molybdenum disulfide grease or aircraft grease (MIL-G-21164 or MIL-PRF- 23827).

26. Lubricate two tension strut bulkhead fittings using molybdenum disulfide grease or aircraft grease (MIL-G-21164 or MIL-PRF- 23827).

27. Lubricate six drag brace upper toggle assembly fittings using mo-lybdenum disulfide grease or aircraft grease (MIL-G-21164 or

MIL-PRF-23827).

28. Lubricate five drag brace center link assembly fittings using molyb-denum disulfide grease or aircraft grease (MIL-G-21164 or MIL-

PRF-23827).

29. Lubricate four drag brace assembly fittings using molybdenum disulfide grease or aircraft grease (MIL-G-21164 or MIL-PRF- 23827).

VIEW LOOKING UP

SHOCK STRUT

FITTINGS

UPPER TOGGLE

ASSEMBLY

FITTINGCENTER

ASSEMBLY

FITTING

25.

DRAG BRACE

26. TENSION STRUT

FITTING

LINK

ASSEMBLY

FITTING

27.

28.

29.

AM−12JG−00−2−7125X40

NOTE

Lubrication procedures for left and right speedbrakes are iden-tical; therefore, only right procedure is given.

1. Lubricate two upper speedbrake door hinge assembly fittings using grease (MIL-G-21164 or MIL-PRF-23827).

2. Lubricate two lower speedbrake door hinge assembly fittings using grease (MIL-G-21164 or MIL-PRF-23827).

3. Lubricate four upper and four lower link assembly fittings using grease (MIL-G-21164 or MIL-PRF-23827).

4. Lubricate two upper seal and link assemblies (3 places each) using oil (MIL-PRF-32033 or MIL-PRF-7808).

5. Lubricate lower fairing assembly (2 places) and speedbrake rod assembly (2 places each end) using oil (MIL-PRF-32033 or MIL-

PRF-7808).

SPEED BRAKE LUBRICATION.

UPPER HINGE

ASSEMBLY FITTING

FAIRING ASSEMBLY5.

SEAL AND

LINK ASSEMBLY

ROD ASSEMBLY

(2 PLACES EACH END)

CJ−12JG−00−2−6140X99

LOWER

HINGE

ASSEMBLY

FITTING

LINK

ASSEMBLY

FITTING

UPPER

LINK

ASSEMBLY

LOWER

File details come from the government source that posted it. Updated Aug 17, 2026.