3. Job Set-up
__________
 (Ref. Fig. 601/TASK 27-44-51-991-007, 602/TASK 27-44-51-991-008)
 Subtask 27-44-51-010-053

 A. Get Access
 (1)
 Put the access platform in position.

 (2)
 Open the access door 312AR.

 (3)
 Put the warning notices in the cockpit to tell persons not to operate the pitch controls.

 4. Procedure
_________
 (Ref. Fig. 601/TASK 27-44-51-991-007, 602/TASK 27-44-51-991-008)
 Subtask 27-44-51-220-050

 A. Carefully examine the ball screw nut (5), the screw (7) and the claw stops (4).
 (1) Clean the claw stops (4), the ball screw nut (5), the screw (7) and the nut assembly (8) with CLEANING AGENTS (Material No. 11-002) and let them dry.
R (2) Use a flashlight and inspect the claw stops (4) for:
 -cracks,
 -dents,

 Claw Stops, Ball Screw Nut and Screw
 Figure 602/TASK 27-44-51-991-008
 1EFF :  ALL  1  27-44-51 Page 607 
1  1  Feb 01/98
 1  1
 1CES  1

 (3) Make sure that the claw stops (4) are correctly installed on the screw (7).
 (a)
 Make sure that the screws (15) are correctly installed through the keys (18) in the claw stops (4).

 (b)
 Make sure that the flange (16) is correctly installed on the claw stop (4) and shows no damage.

 (c)
 Make sure that the tab washer (19) is correctly safetied on the special nut (20) at the lower claw stop (4).

R (4) Use the flashlight and examine the ball screw nut (5) for:
 -cracks,
 -dents,
 -corrosion,
 -satisfactory protective finish.
 (5) Make sure that the ball screw nut (5) is correctly installed in the nut assembly (8).
 (a) Make sure that the grease nipple (17):
 -is clean,
 -shows no damage,
 -is correctly installed in the fail-safe nut (23).
 (b) Make sure that the ice chippers (21),(24):
 -show no damage,
 -are correctly installed on the screw (7),
 (c) Make sure that the locking bush (22):
 -shows no damage,
 -is correctly installed on the ball screw nut (5).
R (6) Use a flashlight and examine the screw (7) for:
 -cracks,
 -corrosion,
 -satisfactory protective finish.
R (7) Use a flashlight and inspect the nut assembly (8) for:
 -cracks,
 -corrosion,
 -satisfactory protective finish.
 (8) Lubricate the ball screw nut (5) as necessary (Ref. TASK 12-22-27-640-003).

 5. Close-up
________ Subtask 27-44-51-410-053
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 312AR

 (3)
 Remove the warning notice(s).

 (4)
 Remove the access platform(s).

 TASK 27-44-51-210-002
R Visual Check of the Threaded (Fail-Safe) Nut
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
 START A TASK ON OR NEAR:

 -
THE FLIGHT CONTROLS

 -
THE FLIGHT CONTROL SURFACES

 -
THE LANDING GEAR AND THE RELATED DOORS

 -COMPONENTS THAT MOVE.
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 274451-06
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R No specific warning notices No specific access platform 5.5 m (18 ft. 1 in.)
R No specific 1 FLASHLIGHT
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
27-44-51-991-007 Fig. 601
 27-44-51-991-008 Fig. 602

 3. Job Set-up
__________
 (Ref. Fig. 601/TASK 27-44-51-991-007)
 Subtask 27-44-51-010-054

 A. Get Access
 (1)
 Put the access platform in position.

 (2)
 Open the access door 312AR.
　
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