Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (71)
Page 19 of 28
CHAPTER 71 – POWER PLANT SYSTEM (71-00-00)
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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: 5
Date: 12.06.20
71.3 ENGINE MOUNTS
71.3.1 Engine Mounts
The engine is supported on the service deck
with one bipod and one tripod mount located on
the right and left side of the engine combustor.
A single forward support tube is located at
forward left side of engine. A Turnbuckle
Assembly is provided at each mount leg for
engine alignment.
CAUTION
LEAVE DECK FITTINGS (11, FIGURE 71-10)
IN PLACE EXCEPT WHEN REMOVAL IS
REQUIRED FOR INSPECTION
REPLACEMENT, ADJUST TURNBUCKLE
ASSEMBLY TO CORRECT DRIVESHAFT
ALIGNMENT.
Tools Required
-
- - Hoist
LTCT773 Engine Sling
71.3.1.1 Removal – Engine Mounts
71.3.1.1.1
Install LTCT773 engine sling.
71.3.1.1.2
Raise engine using a suitable
hoist.
71.3.1.1.3
Remove bolts, washers, and
nuts securing mounts (1, 10, and 12, Figure 71-
10) to the airframe deck fittings (11).
71.3.1.1.4
Remove the 204-060-743-005
lever assembly from the D3684-041 mount
assembly. Reference Figure 71-11.
71.3.1.2 Inspection – Engine Mounts
71.3.1.2.1
Inspect the tube assemblies and
weld areas of the mount for cracks. If cracks are
found, replace the mounts.
71.3.1.2.2
Inspect bolt threads and replace
bolts as required.
71.3.1.2.3
Inspect rod end bearings for
play as follows:
NOTE
Bipod mount and tripod mount use a
double row type rod end bearing and
axial play cannot be used to determine
bearing condition.
71.3.1.2.3.1
Rod end bearings on the bipod
mount and tripod mount must be replaced if
radial wear exceeds 0.005 inch.
71.3.1.2.3.2
Rod end bearings on forward
support tube must be replaced if radial wear
exceeds 0.005 inch or axial wear exceeds 0.012
inch.
71.3.1.3 Installation – Engine Mounts
71.3.1.3.1
Check installation of deck
fittings (11, Figure 71-10). Place rod ends of
tripod mount (10) in three fittings at left and rear
of deck. Install close tolerance bolts with
washers under heads and nuts.
71.3.1.3.2
In similar manner, install bipod
mount (1) in right deck fittings (11).
71.3.1.3.3
Install forward support tube (12)
in the deck fitting (11).
71.3.1.3.4 Open
bearing caps (8) on pillow
blocks. Lower engine to seat main trunnion
bearings. Close bearing caps and secure with
latching eyebolts (5).
71.3.1.3.5
Align rod end of forward support
tube (12) on forward left trunnion fitting and
install retaining bolt (14) with washer. Torque
retaining bolt (14) 50 to 60 inch-pounds. Secure
bolt head to upper aft bolt of trunnion with
lockwire (C-405).
71.3.1.3.6
Remove LTCT773 engine sling.