Eagle ICA-D212-725, Instructions Manual

Page: 435 / 729

ICA-D212-725 (63)
Page 108 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
63.7.5 Hydraulic Pump and Tachometer
Drive Quill
A drive quill located on right side of transmission
sump case drives No 1 hydraulic pump by splined
connection to its gear shaft. A chain-and-sprocket
offset drive in the quill drives the rotor tachometer
generator.
63.7.5.1 Removal
SPECIAL TOOLS REQUIRED
NUMBER NOMENCLATURE
T101308 Jackscrew set
63.7.5.1.1
Remove access doors on right
side of pylon support in cabin.
63.7.5.1.2 Remove rotor tachometer
generator, by disconnecting electrical plug and
removing nuts (15, Figure 63-48) and washers
(14) from four mounting studs.
63.7.5.1.3
Remove nuts (1) and washers (2)
from four mounting studs. Remove no. 1
hydraulic pump (3) and gasket (4).
63.7.5.1.4
Remove nuts and washers from
two remaining quill mounting studs (11, Figure 63-
48).
63.7.5.1.5
Using a sharp, non-metallic
scraper, remove sealant from around quill and
from jackscrew holes.
CAUTION
TIGHTEN JACKSCREWS CAREFULLY AND
EVENLY TO KEEP QUILL ALIGNED DURING
REMOVAL.
63.7.5.1.6
Use T101308 jackscrew set to pull
drive quill from transmission sump case. Cover
open port.
63.7.5.1.7
Remove packing from quill sleeve.
Discard packing.
63.7.5.2 Cleaning
MATERIALS REQUIRED
Refer to BHT-ALL-SPM for specification and
source.
NUMBER NOMENCLATURE
C-304 Solvent
63.7.5.2.1
Clean sealant residue from both
quill and transmission mounting port using sharp
plastic scraper.
63.7.5.2.2
Clean external surfaces of parts
with a clean, lint-free cloth dampened with solvent
(C-304).
63.7.5.2.3
Dry with filtered, compressed air.
63.7.5.3 Inspection
63.7.5.3.1
Visually inspect all accessible
parts for damage.
63.7.5.3.2
Rotate quill gear and check
bearings for smooth operation. Roughness which
can be detected by feel is unacceptable.
63.7.5.3.3
Inspect gear teeth for nicks,
cracks, and abnormal wear pattern. Any such
damage which can be detected visually is
unacceptable.
63.7.5.3.4 For additional inspection
requirements, refer to BHT-212-CR&O.
63.5.7.4 Repair
MATERIALS REQUIRED
Refer to BHT-ALL-SPM for specification and
source.
NUMBER NOMENCLATURE
C-304 Solvent
63.7.5.4.1
Quill shall be replaced as an
assembly when inspection requirements are not
met.