NLG Lock Spring
Figure 402/TASK 32-21-18-991-002
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1 1
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(4) TORQUE the nut (7) to between 0.8 and 0.95 m.daN (70.79 and 84.07 lbf.in).
NOTE : Put a wrench on the flats of the shoulder of the pin (2) to
____
prevent movement.
(5)
Install a new cotter pin (8)
(6)
Make sure that the spacer (12) is in position on the pin (13).
(7)
Install the WASHER SPACER (M46789) on the pin (13).
(8)
Install the washer (11) and the nut (10). TORQUE the nut (10) to between 0.8 and 0.95 m.daN (70.79 and 84.07 lbf.in).
(9)
Install a new cotter pin (9).
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Installation of one NLG Lock Spring
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice(s)
R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft) M21929 1 TENSIONING FIXTURE M46789 1 WASHER SPACER
B. Consumable Materials
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
Material No. 04-004 USA MIL-PRF-23827 TYPE I
SYNTH.ESTER BASED GREASE HIGH PRESSURE
(Ref. 20-31-00)
Material No. 04-022 USA MIL-PRF-81322 GRADE 2
SYNTHE.HYDROCARBON GREASE HIGH PRESSURE
(Ref. 20-31-00)
Material No. 05-047 C Z-11.904
ANTI COR. COMPOUND(HIGH TEMP.SILICONE SEALANT)
(Ref. 20-31-00)
Material No. 09-001 USA MIL-S-8802 TYPE I CLASS A
FUEL TANK SEALANTPOLYSULFIDE (Ref. 20-31-00)
Material No. 11-004A
1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
(Ref. 20-31-00)
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-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
3 adjustment washers 32-21-17 02 -040 3 adjustment washers 32-21-17 02 -040A 8 cotter pin 32-21-17 02 -010
R 9 cotter pin 32-21-11 06 -010 9 cotter pin 32-21-11 06A-010
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
32-22-00-010-001 Nose Gear Doors - Ground Doors Opening
32-22-00-410-001 Nose Gear Doors - Ground Doors Closing
32-21-18-991-002 Fig. 402
3. Job Set-up
__________
Subtask 32-21-18-860-051
A. Aircraft Maintenance Configuration
(1)
In the cockpit, on the panel 400VU, make sure that the warning notice(s) is (are) in position to tell persons not to operate the landing gear control lever.
(2)
Make sure that the doors of the nose landing gear are open (Ref. TASK 32-22-00-010-001).
4. Procedure
_________
(Ref. Fig. 402/TASK 32-21-18-991-002)
Subtask 32-21-18-110-051
A. Preparation for Installation
(1)
Clean the removed components with CLEANING AGENTS (Material No. 11-004A) and dry the components with dry filtered compressed air.
(2)
Apply a light coat of SPECIAL MATERIALS (Material No. 05-047) to the threads of all the nuts, screws, bolts and pins.
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R R (3) Apply a thin layer of COMMON GREASE (Material No. 04-004) or COMMON GREASE (Material No. 04-022) to the threaded fasteners.
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.
Subtask 32-21-18-080-050
B. Removal of the WASHER SPACER (M46789)
(1) Cut and remove the cotter pins (8) and (9).
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