ZENAIR CH2000 SERVICE MANUAL
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SECTION VII
FLIGHT CONTROL SYSTEM
GENERAL - Fig. 15 through 18
The CH2000 is controlled in flight by the use of the three standard primary flight control surfaces, consisting
of the ailerons, stabilator and the rudder. Operation of these controls is through the movement of the control
wheel and rudder pedals. The individual surfaces are connected to their control components by the use of
cables and push-pull rods. Provision for longitudinal trim control is provided by an anti-servo trim tab. The
flaps are electrically operated through an interconnecting tube and adjustable rods.
This section describes the replacement and rigging of the control cables.
See Section IV for the control surface replacement. The movable surfaces have stops as well as adjustments
on their cable or control rod connections, so that their range of movement can be altered. The positions and
travel as well as cable tension of the various surfaces are shown in the figures.
Perform a functional check (control rigging) of the affected flight control system whenever re-connection of
the cables is completed (Ref. Figure 15, 17 or 18)
REMOVAL / INSTALLATION OF AILERON CONTROL CABLES - Fig. 15
REMOVAL
1 Open fuselage access panel. (Fig. 2)
2. Remove the balance cable pulley. (Fig. 15)
3. Remove aileron bellcrank inspection plate. (Fig. 2)
4. Disconnect cables from bellcrank (at S, Fig. 15)
5. Attach “Fish line” to cable ends to facilitate reinstallation.
6. Remove the cables.
7. To remove the bellcrank: disconnect the rod from the bellcrank and remove the nut and bolt,
remove the bellcrank.
REINSTALL in reverse order of removal and check the rigging as follows:
AILERON CONTROL RIGGING - Fig. 15
1. With control wheel in neutral, adjust cable length (turnbuckles) so that the bellcranks are
neutral (parallel to the wing rib).
2. Adjust the aileron rods so that both aileron trailing edges are 3/8" lower than the inboard wing
trailing edge.
3. Adjust cable tension to 32 lbs.
4. Safetie all turnbuckles.
5. Verify that when the bellcrank hits the stops, the control wheel arms in front of the instrument
panel have a minimum of 1/8" (3mm) clearance with the structure.
6. Check all components and connections for condition, proper installation, operation and safety.
Feb-00
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