Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (63)
Page 96 of 144
CHAPTER 63 – MAIN ROTOR DRIVE SYSTEM (63-00-00)

COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO ANY
OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision:
6
Date: 13.08.26
63.7 TRANSMISSION QUILLS
63.7.1 Transmission
Quills
63.7.2
Tail Rotor Drive Quill
A drive quill equipped with a flexible spherical
toothed coupling located on aft side of
transmission sump case. The tail rotor driveshaft
is connected to the face splined coupling by a V-
band clamp set.
63.7.2.1 Removal
SPECIAL TOOLS REQUIRED
NUMBER NOMENCLATURE
T101338 Jackscrew set
63.7.2.1.1
Open engine cowling and remove
induction baffle panels for access to transmission
tail rotor drive quill.
63.7.2.1.2
Disconnect and remove forward
section of tail rotor driveshaft (Chapter 65).
63.7.2.1.3
Remove nuts (1, Figure 63-42),
washers (2, 4, and 5), and spacers (3) from six
mounting studs around drive quill flange. Remove
sealant from around quill sleeve and jackscrew
holes (6).
63.7.2.1.4 Drain
oil, as necessary, to a level
below quill mounting port.
63.7.2.1.5
Use T101338 jackscrew set
through three threaded holes (6) in mounting
flange to pull drive quill from sump case. Turn
jackscrew set evenly to keep quill aligned during
removal to avoid damage. Cover open port.
63.7.2.1.6
Remove and discard packing (8)
from drive quill sleeve.
63.7.2.2 Cleaning
MATERIALS REQUIRED
Refer to BHT-ALL-SPM for specification and
source.
NUMBER NOMENCLATURE
C-304 Solvent
CAUTION
DO NOT IMMERSE TAIL ROTOR DRIVE QUILL
IN SOLVENT OR SPRAY SOLVENT ON QUILL.
USE ONLY CLEAN CLOTHS DAMPENED WITH
SOLVENT (C-304) TO EXTERIOR OF QUILL.
63.7.2.2.1
Clean sealant residue from both
quill and transmission mounting port using a sharp
plastic scraper.
63.7.2.2.2
Clean external surfaces of parts
using solvent (C-304).
63.7.2.2.3
Dry with filtered, compressed air
or clean, dry cloths.
63.7.2.3 Inspection
NOTE
The following inspection procedures shall be
accomplished when tail rotor drive quill is removed
for normal maintenance. If accompanying records
indicate helicopter has been subjected to an
overtorque, sudden stoppage, compressor stall,
etc., refer to BHT-212-CR&O and accomplish the
inspection outlined in paragraph 63.7.2.4.
63.7.2.3.1
Inspect coupling (10, Figure 63-
42) for grease leakage. Wetting of adjacent areas
by grease is cause for replacement of defective
parts with the following exception: A small amount
of grease expelled from around lip of seal (9)
and/or other quill parts provided the following
evaluation of grease leakage is accomplished.
CAUTION
DO NOT CLEAN OR SPRAY BEARING OR
HANGER ASSEMBLY WITH ANY TYPE OF
SOLVENT DURING INSPECTION. USE ONLY
CLEAN, LINT-FREE CLOTH DAMPENED WITH
SOLVENT (C-304) TO CLEAR EXTERIOR OF