Eagle ICA-D212-725, Инструкция по эксплуатации

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ICA-D212-725 (63)
Page 97 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
QUILL.
63.7.2.3.1.1
Wipe grease from coupling (10)
and adjacent parts with clean cloths.
63.7.2.3.1.2
Inspect coupling (10) temperature
indicators “TEMP-PLATES” for discoloration and
overheat condition. A change in color white or
light gray to black indicates a possible overheat
condition and/or component degradation. Cause
of discoloration shall be determined and corrected
prior to continued operation. Refer to Chapter 65,
Tail rotor driveshaft hanger assemblies.
63.7.2.3.1.3
Inspect coupling (10) for grease
leakage and for discoloration due to overheating at
frequent intervals during the next ten flight hours.
If grease leakage and/or overheating occurs,
replace quill.
63.7.2.3.2
Inspect seal (9) for protrusion and
other evidence of damage. Protruding and/or
damaged seals are not acceptable.
63.7.2.3.3
Inspect tail rotor drive quill in
accordance with BHT-212-CR&O.
63.7.2.4 Inspection (Special/Condition)
NOTE
Accomplish the following inspection if helicopter
records indicate quill has been subjected to an
overtorque, sudden stoppage, compressor stall,
etc. Refer, also, to BHT-212-CR&O for further
requirements.
63.7.2.4.1
Remove tail rotor drive quill
(paragraph 63.7.2.1).
63.7.2.4.2
Inspect teeth on quill gear and
mating teeth on pinion inside transmission sump
for scoring. Use a 10X magnifying glass. If
scoring is detected, check scored area with 0.002
inch (0.05 mm) radius probe. If defect can be felt,
affected part shall be replaced (BHT-212-CR&O).
63.7.2.4.3
If unacceptable defects are noted
in the previous step on either the quill or
transmission pinion, remove transmission. Tag
transmission and quill as unserviceable and state
reason for removal, i.e., overtorque, sudden
stoppage, etc.
63.7.2.4.4
If no unacceptable defects are
found, install tail rotor drive quill and return
helicopter to service.
63.7.2.5 Repair
63.7.2.5.1
Repair mechanical and corrosion
damage in accordance with BHT-212-CR&O.
63.7.2.5.2
Replace seal (9, Figure 63-42) in
accordance with BHT-212-CR&O.
63.7.2.5.3
Lubricate coupling (10) in
accordance with Chapter 65.
63.7.2.5.4 Inspect/replace temperature
indicators ‘TEMP-PLATES” if required. Refer to
Chapter 65. Tail rotor driveshaft hanger
assemblies inspection.
63.7.2.6 Installation
MATERIALS REQUIRED
Refer to BHT-ALL-SPM for specification and
source.
NUMBER NOMENCLATURE
C-308 Adhesive
63.7.2.6.1
Install packing (8, Figure 63-42) in
groove around drive quill sleeve (7).
63.7.2.6.2
Uncover mounting port on aft side
of transmission sump assembly (11). Ensure
mating surfaces of quill sleeve and case are clean.
63.7.2.6.3
Coat packing and mating surfaces
of quill sleeve and mounting port with transmission
oil.
CAUTION
IF IT IS NECESSARY TO TAP ON QUILL
DURING INSTALLATION, USE ONLY A SOFT
FACED MALLET AND TAP ONLY ON QUILL
SLEEVE FLANGE.