Van's Aircraft RV 12iS, Maintenance Manual

Page: 74 / 222

Rev: 2 Date: 11/15/18
5-20
S
TABILATOR HINGE BEARING REPLACEMENT
Special Tools 1/4 drive socket slightly less than
5/8in in diameter. (A common
standard 7/16 socket generally
works).
3/8 drive, 3/4 socket
Hex Bolt 1/4 diameter 3 inches
long (must be threaded at least
50% of its length)
1/4 Flat Washer(2) and Hex Nut
Expendable Cotter pins
Lock Clips (2)
Loctite 648
Replaceable Bearing DW4K2X
Service Rating Line
Minimum Certification LSA-RM or A&P
Additional
References
KAI
■ C
AUTION
: B
E PREPARED WITH ADDITIONAL PERSONEL OR TOOLS TO HANDLE THE
WEIGHT AND AWKWARDNESS OF THE OBJECT TO BE REMOVED
.
Removing the Stabilator
1. Remove the upper and lower tailcone fairing. (3-4)
● NOTE: B
EFORE DISCONNECTING THE STABILATOR CONTROL CABLES BE
PREPARED TO PREVENT THE ENDS OF THE CABLES FROM FALLING INTO THE
TAILCONE
.
2. Remove the two aft most belly inspection covers.
3. Remove the Lock Clips from one of the cable tensioners. Locking clips are one
use only. Clips must be discarded after removal.
4. Rotate the tensioning barrel to slacken the stabilator control cables.
5. Disconnect the stabilator control cables.
6. Disconnect the aft end of the Trim/Servo Pushrod from the Anti-servo Tabs.
7. Remove the two bolts attaching the counter balance arm to the stabilator.
8. Remove the two bolts attaching the stabilator to the aft end of the tail cone.
9. Remove the stabilator assembly. Note: while extracting the counter balance arm
from the fuselage, rotate the counter balance arm 90 degrees to allow it to pass
through the aft tailcone bulkhead.
Bearing Replacement
10. Pressing out the bearing: Position the sockets on each side of the bearing then
use the nut, washer and bolt inserted through both sockets and the bearing. Tighten
the nut on the bolt to press the bearing towards the large socket. See Figure 16 .