Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (67)
Page 5 of 55
CHAPTER 67 – FLIGHT CONTROLS (67-00-00)

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
67.1.5 Collective Controls
MATERIALS REQUIRED
NUMBER NOMENCLATURE
0-308 Adhesive
C-405 Lockwire
NOTE
Refer to paragraph 67.1.4 prior to beginning
rigging.
67.1.5.1
Disconnect collective pitch
controls at rigging points as follows:
67.1.5.1.1
Control tube (2, Figure 67-1) from
collective levers (1).
67.1.5.1.2
Control tube (6) and spring (19),
from actuator lever (18).
67.1.5.2
Place collective control stick full
up against stop. Tighten friction adjustment to hold
in position.
67.1.5.3
For helicopters S/N 30850 and
sub. or prior S/N helicopters with adjustable
control tube 212-001-270-001 installed, disconnect
control tube (3, Figure 67-2) at forward end and
position bellcrank (2) to dimension shown. Adjust
control tube (3) to fit and install on lever (10,
Figure 67-1).
67.1.5.4
With collective controls positioned
per step 7.1.5.2 (step 7.1.5.3 for helicopter S/N
30850 and sub. or prior S/N helicopters with
adjustable control tube 212-001-270-001
installed), move actuator lever (18) enough to
release hydraulic lock of cylinder and move (or
bottom) hydraulic cylinder in up position. Set
valve actuator lever in position shown in detail B.
67.1.5.5
Adjust control tube (6) to correct
length to attach to actuator lever (18), then shorten
3 to 5 turns at end fitting. Attach to lever with bolt,
using clip under bolt head and washer under nut.
Attach spring (19) before tightening nut. Install
cotter pin.
NOTE
Maximum exposed thread dimension on control
tube (6) is 1 .0 in. (25.4 mm) (detail B).
CAUTION
COLLECTIVE CONTROL LINKAGE BELOW
SERVO ACTUATOR SHALL NOT MOVE
WHILE PERFORMING STEP 67.1.5.6.
67.1.5.6
Place collective control stick full
down against stop. Tighten friction adjustment to
hold in position. Position collective lever (1) 2.39
to 2.45 in. (60.71 to 62.23 mm) from center of
lever cam roller bolt to top surface of mast
bearing plate (detail A). Center actuator lever
(18) and adjust length of control tube (2) to fit.
Connect control tube (2) to collective lever (1).
Install washers on bolt, install bolt, washer, and
nut. Torque nut, install cotter pin. Torque nut
(23) on clevis (22) 1500 to 1800 in-lbs. (169.47
to 203.36 Nm). Apply lockwire (C-405) to lock
(21, detail D). Apply adhesive (C-308) evenly
around nut, lock, and threads on clevis.
NOTE
If rigging system with hydraulic system not
completely bled of air, apply sufficient downward
pressure on control tube (2) to hold actuator
lever (18) at top of travel. Adjust clevis on
control tube (2) to fit collective lever (1) then
shorten one full turn of clevis and connect as
described in step 67.1.5.6.
67.1.5.7
Establish main rotor low blade
angle of 8° (Chapter 62).
67.1.5.8
Check minimum friction
adjustment on collective control stick (paragraph
67.2.4).
67.1.5.9
Inspect collective pitch control
system for secure installation and unobstructed
full travel.