Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (63)
Page 134 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
transmission cowling to gain access to
transmission.
63.12.10.2 Remove outboard brake assembly
half (11, Figure 63-56).
63.12.10.3 Cut lockwire and remove retaining nut
(5, Figure 63-58) using T101649-101 (3) tool to
restrain brake disc (2).
63.12.10.4 Remove and discard packing (4).
CAUTION
ROTOR BRAKE DISC AND FLANGE ASSEMBLY
SHALL BE REMOVED AS AN ASSEMBLY. DO
NOT ATTEMPT TO REMOVE DISC FROM
FLANGE ADAPTER WHILE ASSEMBLY IS
INSTALLED ON QUILL. DO NOT SEPARATE
DISC FROM FLANGE IF DISC IS NOT BEING
REPLACED.
63.12.10.5 Remove disc and flange adapter (as
an assembly) from quill assembly (1, Figure 63-
56).
63.12.10.6 To remove rotor brake disc (2, Figure
63-58) from flange adapter (1).
63.12.11 Rotor Brake Disc - Inspection
SPECIAL TOOLS REQUIRED
NUMBER NOMENCLATURE
AN4-5A Bolt
AN960-416 Washer
Commercial Dial
Indicator
Commercial Lathe
NOTE
If rotor brake disc has been removed using an
arbor press (or equivalent), or warpage is
suspected, the following disc inspection is
required.
63.12.11.1 Install inspection arbor (Figure 63-59)
in pilot hole of disc. Install four bolts (AN4-5A) and
washers (AN960-416).
63.12.11.2 Install arbor and disc assembly
between lathe centers.
63.12.11.3 While rotating disc, measure run-out
as indicator probe is swept across full radical width
of each friction surface (front and back).
63.12.11.4 Total indicator deflection shall not
exceed 0.010 inch (0.254 mm).
63.12.12 Rotor Brake Disc - Installation
SPECIAL TOOLS REQUIRED
NUMBER NOMENCLATURE
T101649-101 Brake Disc Holding Tool
MATERIALS REQUIRED
Refer to BHT-ALL-SPM for specifications.
NUMBER NOMENCLATURE
C-405 Lockwire
63.12.12.1 If not previously accomplished, install
brake disc (2, Figure 63-58) on flange adapter (1).
63.12.12.2 Apply a light coat of transmission oil
(Chapter 12) to splines in rotor brake quill
assembly (1, Figure 63-56) and mating splines on
flange adapter (6).
63.12.12.3 Install brake disc (7) and flange
adapter (6) assembly on rotor brake quill assembly
(1).
63.12.12.4 Lubricate new packing (4, Figure 63-
58) and install nut (5).
63.12.12.5 Install nut (5) in center of brake disc
(2) and flange adapter (1). Using the brake disc
holding tool (T101649-101) to hold disc, tighten
nut to 125 to 150 ft-lbs (169.5 to 203.4 Nm)
NOTE
Confirm torque of 50 to 70 inch-pounds (5.65 to
7.91 Nm) on bolts (6).
63.12.12.6 Secure bolts (8, Figure 63-62, View B-
B) to retaining nut (10) with lockwire (C-405).
63.12.12.7 Install outboard brake assembly half
(paragraph 63.12.14).