67-13 Cyclic Friction Assembly
NOTE
The cyclic friction assembly is located below the forward left
corner of the cyclic box. Turning friction knob clockwise applies
friction to both longitudinal and lateral cyclic axes. Adjustment
is required if friction cannot be applied.
A. Friction Adjustment
1. Turn friction knob counter-clockwise until it stops.
2. Remove roll pin connecting knob to shaft.
3. Lift knob off shaft.
4. Install NAS1149F0432P or NAS1149F0463P washers under knob washer, as
required, so knob rotates 1/8 to 1 turn before adding friction. With friction off, force
at grip to move cyclic shall not exceed 1.75 pounds longitudinal and lateral within
hydraulic servo deadbands.
5. Replace knob and install roll pin.
6. Move flight controls throughout complete travel. Verify no binding.
67-20 Collective Control
67-21 Collective Stick Assembly
A. Removal
1. Refer to Figure 67-1. Disconnect A333-1 collective-travel stop from F348-1 anchor
by removing NAS6603 bolt at bottom of stop. Position stop parallel to collective
stick and apply collective friction.
2. Refer to Figure 6-8. Remove F445-1 forward tunnel cover, F680-3 pilot's collective
cover, F680-1 co-pilot's collective cover, F463-1 mid-tunnel cover, and F461-1
collective cross tube cover.
3. Pivot pilot's seat bottom to the open position. Remove bolt securing inboard end of
collective stick to pilot's seat structure. Refer to Figure 76-1. Disconnect throttle
control inner wire from A462-4 fitting at outboard end of collective. Remove three
screws securing C522-10 throttle control to collective cross tube.
4. Disconnect wiring exiting aft end of center collective stick from airframe harness
connector. Remove ty-raps as required.
5. Disconnect forward end of F121-1 push-pull tube from collective stick assembly.
6. Remove bolt securing outboard end of collective stick to F303-1 support. Remove
two remaining screws securing F303-1 support to cabin. Slide support, with attached
micro-switches, down to allow aft movement of collective stick.
7. Pivot pilot's seat bottom to the open position. Remove bolt securing collective stick
assembly to pilot's seat structure.
8. Carefully move collective stick assembly aft and remove from helicopter.
Page 67.6 Chapter 67 Flight Controls R66 Maintenance Manual 25 OCT 2010
To Next Page
Loading...