Eagle ICA-D212-725, Инструкция по эксплуатации

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ICA-D212-725 (63)
Page 125 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
63.9.2.3.2.4 Make sure lift link lower end is
securely attached in fitting on lift beam with bolt,
washers, nut, and cotter pin.
63.9.2.3.2.5 Install
transmission.
63.9.3 Friction
Dampers
The friction dampers (Figure 63-53) are cylindrical
units connected between the lower ends of the
mount bolts and fittings in the pylon support
structure.
63.9.3.1 Removal
63.9.3.1.1
Open transmission cowling.
63.9.3.1.2
Remove nut and bolt securing
damper (11, Figure 63-53) to mount (9).
63.9.3.1.3
Remove nut, washer, and bolt
attaching friction damper (11) to fitting (14) on pylon
support (13). Remove damper from support.
NOTE
Pylon friction dampers may be overhauled. Damper
overhaul kits or refurbished friction dampers may be
obtained from:
Lord Kinematics Refurbishment Department
1635 West 12th Street
Erie, Pennsylvania 16512
63.9.3.2 Inspection
63.9.3.2.1
If friction dampers for pylon rear
main mounts are suspected of being contaminated
with grease or oil, they should be disassembled and
inspected.
63.9.3.2.2
Inspect dampers for binding, rough
movement, or actual lack of movement by stationing
personnel around pylon mounting point. Move pylon
fore-and-aft using the mast as a lever to rock pylon.
If any of the above conditions are noted, replace
dampers.
63.9.3.2.3
Inspect bearing and damper fittings
on friction dampers for a maximum acceptable radial
movement of 0.004 inch (0.102 mm).
63.9.3.3 Installation
63.9.3.3.1
Install bolt, washers, and nut
securing friction damper (11, Figure 63-53) to
fitting (14) on pylon support (13). Torque nut 80 to
100 inch-lbs. (9.04 to 11.30 Nm).
63.9.3.3.2
Install bolt, washer, and nut
securing damper (11) to mount (9).
63.9.3.3.3
Close transmission cowling.
63.9.4 Lift Link
The lift link consists of two roll staked bearings,
one located on each end. The lift link is located
underneath the forward side of the transmission
support case.
63.9.4.1 Removal
SPECIAL TOOLS REQUIRED
NUMBER NOMENCLATURE
T101581 Maintenance Hoist or Equivalent
63.9.4.1.1
Open and remove cowling,
fairings, firewalls, and baffles, as required, for
access to lift link.
63.9.4.1.2 Erect maintenance hoist
(T101581), or provide other suitable hoisting
equipment to steady transmission.
63.9.4.1.3 Install
clevis on top of mast.
Attach hoist to clevis and take up slack.
63.9.4.1.4 Disconnect lift link from
transmission as follows:
63.9.4.1.4.1 Transmissions with lift link
attachment point as an integral part of support
case.
63.9.4.1.4.1.1 Remove nut and washer from bolt
assembly (11, Figure 63-11).
63.9.4.1.4.1.2 Raise transmission sufficiently to
free bolt assembly (11) and remove bolt assembly.