TASK 32-21-24-400-001
 Installation of the Swivel Bearing
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
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REFERENCE  QTY DESIGNATION
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No specific access platform 1.7 m (5 ft. 7 in.)
 No specific Torque Wrench : range 0.20 to 3.60 m.daN

 (2.00 to 26.00 lbf.ft)
 B. Consumable Materials
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REFERENCE  DESIGNATION
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Material No. 04-004  USA MIL-PRF-23827 TYPE I
 SYNTH.ESTER BASED GREASE HIGH PRESSURE
 (Ref. 20-31-00)

R Material No. 04-022 USA MIL-PRF-81322 GRADE 2

R  SYNTHE.HYDROCARBON GREASE HIGH PRESSURE
R (Ref. 20-31-00) Material No. 11-002 USA MIL-PRF-680 DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT) (Ref. 20-31-00)
 C. Expendable Parts
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FIG.ITEM |DESIGNATION  |IPC-CSN
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3 O-ring 32-21-01 01 -075 4 O-ring 32-21-01 01 -060 7 cotter pin 32-21-01 01 -010
 1EFF : ALL 1 32-21-24Page 404 1 1 Feb 01/04 1 1 1CES 1 1EFF : ALL 1 32-21-24Page 405 1 1 Feb 01/04 1 1 1CES 1 Subtask 32-21-24-420-050

 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-26-42-000-001 21-26-42-400-001 32-21-11-000-002 32-21-11-400-002 32-31-00-720-002 52-41-00-410-002 32-21-24-991-001-A  Removal of the Avionics Equipment Ventilation DuctInstallation of the Avionics Equipment Ventilation DuctRemoval of the NLG Leg Assy (2526GM)Installation of the NLG Leg Assy (2526GM)Functional Test of the Normal Extension and Retraction of the Landing GearClose the Avionics Compartment Doors after AccessFig. 401
 3. Job Set-up__________
 Subtask 32-21-24-010-051
 A. Get Access
 (1) Make sure that the landing gear is removed (Ref. TASK 32-21-11-000-002).
 (2) Make sure that the access platform is in position in zone 123.
 (3) Make sure that the access door 824 is open to get access to the hinge points of the nose landing gear.
 (4) Make sure that the avionics equipment ventilation duct is removed (Ref. TASK 21-26-42-000-001).
 4. Procedure_________
 (Ref. Fig. 401/TASK 32-21-24-991-001-A)
 Subtask 32-21-24-110-050
 A. Preparation for Installation
 (1) Clean all the components and the swivel bearing with CLEANING AGENTS (Material No. 11-002) and dry them with filtered compressed air. 
R R R  (2) Apply a light coat of COMMON GREASE (Material No. 04-004) or COMMON GREASE (Material No. 04-022) on the swivel bearing to make its installation easier. 
R R R R  NOTE : Do not mix Material No. 04-004 with Material No. 04-022. You____ can use Material No. 04-022 as an alternative to Material No. 04-004. Clean and degrease the parts before you use Material No. 04-022.

 B. Installation of the Swivel Bearing
 (1)
 Install the new O-ring (3) on the protective cover (5).

 (2)
 Install the new O-ring (4) on the protective cover (5).

 (3)
 Install the swivel bearing (2).

 (4)
 Install the bolts (1).

 (5)
 Install the protective cover (5), the washers (6) and the nut (8).

 (6)
 TORQUE the nut (8) to between 1.2 and 1.35 m.daN (106.19 and 119.46 lbf.in) and safety with the new cotter pin (7).

 (7)
 Make sure that the swivel bearing has no friction points and can move freely in its housing.

 (8) Install the nose landing gear (Ref. TASK 32-21-11-400-002).
 Subtask 32-21-24-720-050

 C. Functional Test
 (1) Do the functional test of the NLG normal extension and retraction (Ref. TASK 32-31-00-720-002).
 5. Close-up
________
 Subtask 32-21-24-410-050

 A. Close Access
 (1) Install the avionics equipment ventilation duct (Ref. TASK 21-26-42-400-001).
R (2) Close the access door 824 (Ref. TASK 52-41-00-410-002).
 (3)
 Remove the access platform(s).

 (4)
 Make sure that the work area is clean and clear of tool(s) and other items.
　
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