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(a) Remove the nuts [19], washers [18], washers [17] and bolts [16] that attach the ballscrew
assembly [2] to the yoke [4].
(b) Remove the ballscrew assembly [2] from the yoke [4].
NOTE: You can turn the ballscrew assembly [2] and the gimbal assembly [14] to get
access to remove the ballscrew assembly [2].
(c) Remove the ballscrew assembly [2] with the gimbal assembly [14].
SUBTASK 27-51-42-020-003
(4) If it is necessary, remove the gimbal assembly [14] from the ballscrew nut [13]:
(a) Remove the bolts [12], washers [11] and collars [10] that attach the gimbal bushings [5] to
the gimbal assembly [14].
(b) Remove the gimbal assembly [14] from the ballscrew nut [13].
------------------------- END OF TASK ---------------------------
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Figure 401 (Sheet 2 of 4)/27-51-42-990-801
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TASK 27-51-42-400-801
3. Outboard Flap Outboard Ballscrew and Gimbal Installation
(Figure 401)
A. General
(1) This task is applicable to the ballscrew and gimbal at flap supports No. 1 and 8.
B. References
Reference Title
12-22-51-640-805 Outboard Flap Outboard Ballscrew and Gimbal Lubrication (P/B 301)
27-51-00-440-801 Trailing Edge Flap System Reactivation (P/B 201)
27-51-00-820-802 Trailing Edge Flap Drive System Adjustment (P/B 501)
27-51-00-860-801 Trailing Edge Flap System Operation With Primary Control (P/B 201)
27-51-28-400-802 Outboard Flap Outboard Support Aft Fairing Installation (P/B 401)
29-11-00-860-801 Hydraulic System A or B Pressurization (P/B 201)
29-11-00-860-805 Hydraulic System A or B Power Removal (P/B 201)
C. Consumable Materials
Reference Description Specification
D00633 Grease - Aircraft General Purpose BMS3-33
D. Expendables/Parts
AMM Item Description AIPC Reference AIPC Effectivity
2 Ballscrew assembly 27-51-42-01-120 GUN 001-007, 155-157,
201-999
14 Gimbal assembly 27-51-42-01-115 GUN 001-007, 155-157,
201-999
E. Location Zones
Zone Area
544 Left Wing - Fairing Flap Support No. 1
567 Left Wing - Outboard Flap
644 Right Wing - Fairing Flap Support No. 8
667 Right Wing - Outboard Flap
F. Outboard Flap Outboard Ballscrew and Gimbal Installation
SUBTASK 27-51-42-420-001
(1) If you removed it, install the gimbal assembly [14] on the ballscrew nut [13]:
(a) Apply grease, D00633 to the inside and outside mating surfaces of the gimbal bushings [5].
GUN 001-099, 101-122, 156, 157, 201-999; GUN 155 POST 737-SL-57-077
(b) Apply grease, D00633 to the outside surfaces of the gimbal bushings [5].
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(c) Put the gimbal assembly [14] in its location on the ballscrew nut [13].
(d) Install the gimbal bushings [5] through the gimbal assembly [14] on the ballscrew nut [13].
(e) Install the bolts [12], washers [11] and collars [10] to attach the gimbal bushings [5] to the
gimbal assembly [14].
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SUBTASK 27-51-42-420-002
(2) Connect the ballscrew assembly [2] to the yoke [4] on the transmission [3]:
(a) Turn the ballscrew nut [13] until it is at the forward end of the ballscrew assembly [2].
　
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