Wing Lock Handle Installation
100636-01
Use the following procedure to install the wing lock handle.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
3408A112 (SPRING DETENT)
ICA008149 (WING LOCK BUSHING)
ICA011209 (WING LOCK MOUNTING, RH)
ICA022210 (WING LOCK MOUNTING, LH)
ICA007497 (WING LOCK HANDLE, RH)
ICA007500 (WING LOCK HANDLE, LH)
98090A365 (PLASTIC SHIM)
9714K999 (WAVE SPRING)
ICA011333 (RETAINING RING)
ICA008147 (SPACER)
ICA008144 (PIVOT PIN)
8C62MTF3/100 (FLUSH-HEAD SCREWS)
Aircraft System and Number
14—Wing
Safety Equipment
As Needed
Consumables
LOCTITE® 222™
MOLYKOTE™
Task Instructions
1. Clean and inspect all parts and replace those that are not serviceable or if their condition is questionable. It is recommended that all retaining rings be replaced with new ones.
2. If the lock handle components were disassembled, proceed with the below steps as necessary:
a. Apple LOCTITE® 222™ to the threads of a new 3408A112 spring detent then, using a slot-head screwdriver, thread it into the handle to a depth of.030-.005 inches (Figure 462).
b. Install the ICA008149 wing lock bushing into the handle, aligning the notches in the bushing to the holes in the handle.
c. Insert the ICA011209(RH)/ICA022210(LH) wing lock mounting boss into the ICA008149 wing lock bushing.
d. Verify that the 90145A488 dowel pin, wing lock bushing, and wing lock mounting boss are installed in the ICA007497(RH)/ICA007500(LH) wing lock handle as shown in Figure 463. The detent ball should run in the groove in the mounting boss.
e. Place a 98090A365 plastic shim on the mounting bass shaft, followed by a 9714K999 wave spring and ICA008147 spacer as shown in Figure 464. Orient the spacer with its beveled side facing away from the handle as shown.
f. Install an ICA011333 retaining ring into the groove in the wing lock mounting boss to hold the above parts in place (Figure 460).
g. Attach the ICA008143 and ICA008148 link rods to the handle and locking pins. Coat each ICA008144 pivot pin with MOLYKOTE™ on assembly. See Figure 461 for a typical installation. Verify correct pin orientation; the retaining rings are installed on the same side as the wing lock bushing flange and mounting boss flange. Also, note that the longer the two links and the longer the two locking pins connect and face aircraft forward, and the shorter the two, face aircraft rearward.
Figure 461. Wing Lock Handle Installation
Figure 462. Wing Lock Handle
Figure 463. Wing Lock Handle
Figure 464. Wing Lock Handle
3. Apply a thin coat of MOLYKOTE™ to the forward and aft wing locking pins.
4. Install the handle assembly to the fuselage BL38 Rib:
a. Insert the forward locking pin into the wing forward wing pin bushing.
b. Insert the aft locking pin into the wing aft wing pin bushing.
c. Align the handle’s mounting boss to the holes in the BL38 Rib.
d. Coat three 8C62MTF3/100 flush-head attach screws with Tef-Gel® and using a T15 Torx driver, torque each to 13 in-lbf
5. Operate the wing lock handle and verify correct function. The initial handle pull out force from the up and locked position should be about 7 lbf. If not, then the wing lock catch may need to be adjusted. (Wing Lock Catch Adjustment)
6. Remove the support from the wing tip and hang the wing on the horizontal tail.
7. Perform three wing fold operations taking the wing from the folded to extended position and back. Ensure the wing lock handle assembly operates freely with detents in appropriate positions. Visually confirm the mechanism locks with each fold operation. Verify the “SECURE WING/TAIL” annunciator in the cabin is functioning correctly with each fold operation.
Verification Method
Operate the wing lock handle and verify correct function. The initial handle pull out force from the up and locked position should be about 7 lbf. If not, then the wing lock catch may need to be adjusted. (Wing
Lock Handle Installation)
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