Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (71)
Page 9 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
NOTE
Use shim plates on jacks to obtain
necessary height.
71.1.1.3.3.4
With maintenance hoist
detached, and nut and washer removed from
lower bolt of lift link, adjust jacks to raise
transmission until bolt can be freely moved with
fingers.
71.1.1.3.3.5 Determine that transmission
support points are symmetrically parallel with
pylon support structure by measuring at each
mount with a micrometer depth gage. (Refer to
Figure 71-4.)
71.1.1.3.3.6 Use
micrometer depth gage to
measure from the top surface of the support case
mounting plates to the top of the pylon support.
This measurement is to be taken at each of the
four mounts.
NOTE
Disregard step 71.1.1.3.3.7 if assembly
uses 212-040-054 case which has
integral fifth mount.
71.1.1.3.3.7 Subtract
thickness of support
beam from the measurements obtained at the
two aft mounts. This action will allow for
thickness of the fifth mount support beam
channel, which covers the mounting plates at
these two points. All four measurements should
now be equal within 0.020 inch.
NOTE
The lower thickness of the fifth mount
support beam channel need not be
considered, since it has been
compensated for by a difference in the
filler plates.
71.1.1.3.3.8
When all four points cannot be
adjusted to the same dimension, take the
average of the two front points and adjust the two
rear points accordingly.
71.1.1.3.3.9
Upon completion of transmission
pylon positioning, recheck the lower and upper
bolt of the lift link to make sure that it can be
freely moved with the fingers.
71.1.1.3.4
Install the target plate of
T101419 engine-to-transmission driveshaft
alignment tool set on the transmission input quill
coupling. (Refer to Figure 71-8)
71.1.1.3.5
Set the target plate with the
arrow of the center disc indexed at 8.0 on the
inner scale, and secure by tightening the two
washer-head screws at back of plate. Position
the plate or the coupling with the 35.6 index of
the outer scale at the top of the vertical center
line. Secure with coupling clamp set.
71.1.1.3.6
Install alignment gage of tool set
on the engine output shaft adapter, and secure
with coupling clamp set.
71.1.1.3.7 Check
horizontal and vertical
alignment by inserting a suitable tool through
access holes in the alignment gage housing and
pushing the plunger forward, against the
retracting spring tension, toward the target plate
hole.
NOTE
To indicate correct alignment, largest
diameter of plunger must enter hole in
target plate. If misalignment is
indicated, observe and note amount and
direction of such misalignment.
No correction of misalignment should be
attempted before completion of angularity check
outlined in step 71.1.1.3.8. Correction can be
best determined on the basis of both checks.
71.1.1.3.8
Perform angularity check as
follows:
71.1.1.3.8.1
Mount a dial indicator on the
forward end of the alignment gage plunger as
shown in Figure 71-8.
71.1.1.3.8.2
Position the dial indicator for
contact at 2.5 inch radius (just inside outer scale
numerals). Zero the dial indicator at 12 o’clock
position. Check runout through a full turn of the
gage. Runout must be 0.030 ± 0.004 at 6