Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (63)
Page 105 of 144
CHAPTER 63 – MAIN ROTOR DRIVE SYSTEM (63-00-00)
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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
SPECIAL ATTENTION SHOULD BE GIVEN TO
ASSURE NO EXCESSIVE BONDING MATERIAL
IS LEFT BETWEEN THE WEAR SLEEVE AND
COUPLING RACE, AS IT TENDS TO BECOME
HARD AND FLAKE OFF. THIS FLAKING OF
BONDED ADHESIVE HAS BEEN FOUND
BETWEEN THE SEAL LIP AND WEAR SLEEVE
CAUSING LEAKAGE.
63.7.4.1.9
Using a suitable three-leg gear
puller, with legs turned out, and a plate across the
outer end of the pinion, extract seal (14, Figure
63-45) out of the input quill housing. Remove all
old adhesive from around seal area, using a
plastic scraper, and clean with a dry, clean
cheesecloth. Apply a film of sealing compound
(C-328) to outside diameter of seal (14). Bridge
over pinion shaft so that uniform pressure may be
applied around the entire circumference of the
seal while installing to avoid cocking and
distorting. Make sure seal is bottomed against
shoulder of input quill housing. Remove all excess
sealant.
63.7.4.1.10
Spray OD of wear sleeve with dry
film lubricant (C-019), if available, and install
freewheeling assembly into input quill housing. Do
not coat parts, other than wear sleeve (19) and
seal (14) with dry film lubricant.
NOTE
If dry film lubricant (C-019) is not available, it is
permissible to utilize approved transmission oil for
this application.
63.7.4.1.11
Remove previously installed
retaining ring (6, Figure 63-45), grease retainer (5)
and install a new preformed packing (4) on grease
retainer (5). Install nut (2) and using T101488
wrench set torque 350 to 400 foot-pounds. Install
lock ring spring (3). Coat preformed packing (4)
with transmission oil (C-011) and install grease
retainer (5) and retaining ring (6)
63.7.4.1.12
Install main driveshaft and
cowling. (Refer to paragraph 63.2.1.4).
63.7.4.2 Replacement – Input Drive Quill
(205-040-263-101) Seal
63.7.4.2.1 Remove cowling and main
driveshaft in accordance with paragraph 63.2.1.1.
63.7.4.2.2
Remove retaining ring (7, Figure
63-47) and grease retainer (6). Remove and
discard packing (5).
63.7.4.2.3
Remove locking spring (4). Using
T101488 wrench set remove nut (3). Remove
freewheeling clutch assembly (2).
63.7.4.2.4
Remove screws (11), washers
(10), nuts (14), and washers (13).
63.7.4.2.5
Remove cap (9) and seal (12)
from main input quill (17). Keep shim in place.
Press seal (12), from cap (9).
63.7.4.2.6
Remove all old sealing compound
from cap (9).
63.7.4.2.7 Remove
wear sleeve (1). (Refer
to paragraph 63.7.4.1.)
63.7.4.2.8
Install new seal (12) in cap (9)
using sealing compound (C-328). Ensure seal
(12) is seated against shoulder of cap (9).
63.7.4.2.9
Install new packing (8) on sleeve
of main input quill (17).
63.7.4.2.10
Ensure shim is in place. Install
cap (9) and seal (12) on main input quill (17).
Install washers (13), nuts (14). Install screws (11)
and washers (10). Torque nuts (14) 160 to 190
inch-pounds.
63.7.4.2.11 Install freewheeling clutch
assembly (2) on input pinion.
63.7.4.2.12
Install nut (3) using T101488
wrench set, torque 350 to 400 foot-pounds and
install locking spring (4).
63.7.4.2.13
Install new packing (5) on grease
retainer (6). Install grease retainer (6) in
freewheeling clutch assembly and install retaining
ring (7).
63.7.4.2.14
Install cowling and main driveshaft