Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (63)
Page 33 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
63.4.5.1.13 Remove stabilizer bar damper and
adapter (Chapter 62).
63.4.5.1.14
Remove swashplate and scissors
and sleeve (Chapter 62).
NOTE
If mast assembly is not installed, transmission can
be hoisted using cover and lift plate assembly
(204-040-929-029 or 204-040-929-101).
63.4.5.1.15
Install nut on top of mast, attach
hoist and take up cable slack.
63.4.5.1.16 Disconnect lift link from
transmission.
63.4.5.1.17
Disconnect fifth mount eyebolt (5,
Figure 63-11) from mounting point on aft side of
transmission support case by removing bolt
assembly (2). Keep attaching parts with mount.
Remove bolts at each end of fifth mount support
(6) and remove fitting.
63.4.5.1.18
Remove retaining bolt (3), washer,
and large shouldered washer (4) from top end of
each of four main mount bolts (7) at corners of
transmission support case.
63.4.5.1.19 Hoist mast and transmission
assembly carefully clear of fuselage structure.
63.4.5.1.20 Place transmission on SWE-
13852-20 stand assembly or equivalent. Secure
with bolts through main mount points on
transmission support case.
63.4.5.1.21
If replacing transmission, remove
mast assembly (paragraph 63.3.2.1). Remove no.
2 hydraulic pump (Chapter 29).
63.4.5.1.22
Remove rotor brake assembly, if
installed.
CAUTION
IF TRANSMISSION IS TO BE TRANSPORTED,
COVER AND LIFT PLATE ASSEMBLY (204-040-
929-029 OR 204-040-929-101) MUST BE
INSTALLED.
63.4.5.1.23
Install cover plate in transmission
top case opening.
63.4.5.2 Inspection
63.4.5.2.1
Remove, inspect, and install all
chip detectors (paragraphs 63.5.4, 63.5.5, and
63.5.6).
63.4.5.2.2
Inspect main driveshaft in
accordance with 63.2.1.3
63.4.5.2.3
Inspect tail rotor drive quill
coupling temperature indicator “TEMP-PLATES”
for discoloration from white or light gray to black.
A change in color indicates a possible overheat
condition and/or component degradation. Cause
of discoloration shall be determined and corrected
prior to helicopter being released for flight. Refer
to Chapter 65 for tail rotor drive quill coupling
“TEMP-PLATE” inspection.
63.4.5.2.4
Remove, inspect, and install
external oil filter (paragraph 63.5.9).
63.4.5.2.5
Remove, inspect, and install sump
internal oil filter (13, Figure 63-15) (paragraph
63.5.7).
63.4.5.2.6
Remove, inspect, and install oil
inlet screen (paragraph 63.5.8).
63.4.5.2.7
Inspect oil level sight gage for
crazing, cracks, or staining (paragraph 63.5.24.3).
63.4.5.2.8
Inspect transmission case for
loose, missing, or damaged studs and bolts.
NOTE
Pay particular attention to attaching bolts
for lift link and four bolts attaching transmission
support case to structure (Figure 63-11).
63.4.5.2.9
Inspect isolation mounts and
dampers for secure installation and distortion.
63.4.5.2.10
Inspect transmission and attached