Eagle ICA-D212-725, Инструкция по эксплуатации

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ICA-D212-725 (76)
Page 9 of 21
CHAPTER 76 – ENGINE CONTROLS (76-00-00)

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:
0
Date: 07.05.31
Figure 76-2. Rigging N2 Governor Actuator (Sheet 2 of 2)
76.2.2
Cambox and Linear Actuator
The electrically operated linear actuator (15,
Figure 76-1) is controlled by the GOV RPM
INCR/DECR switch on the pilots collective pitch
control stick. The actuator moves a control lever
(16) on the fuel control governor to change
settings on the power turbine rpm. The droop
compensator stabilizes rpm as powerplant load
fluctuates with changes of main rotor pitch. This
is provided by mounting the actuator to a
cambox (14) which is mechanically linked to a
bellcrank in the collective pitch control system.
76.2.2.1 Removal – Cambox and
Linear Actuator
76.2.2.1.1
Remove terminal cover with
attaching screws from top of linear actuator (15,
Figure 76-1). Disconnect and stow electrical
leads. Reinstall cover.
NOTE
Tag and identify electrical leads
for proper installation on
terminals upon reassembly.
76.2.2.1.2
Detach actuator jackshaft rod
end from control lever (16) by removing cotter
pin, nut, washer, and bolt.
CAUTION
HANDLE ACTUATOR WITH
CARE, FOR IN NEXT STEP IT
WILL BE COMPLETELY
DETACHED.
76.2.2.1.3
Detach actuator clevis from
cambox (14) by removing cotter pin, nut,
washer, spring washer, and bolt.
NOTE
Use care to avoid losing spring
washer, which is installed
between actuator clevis and
slider. Tag and identify for
proper reinstallation on
reassembly.
76.2.2.1.4
Remove nuts and washer from
inboard end of two bolts that attach cambox (14)
to cambox bracket (13).
76.2.2.1.5
Remove cambox (14) with bolts
in place. Reinstall washers and nuts on bolts
with care so that shims remain in place on
bellcrank pivot bolt, between bearing and sides
of housing.