Technical data

13773-001
34-20
Page 4 30 Nov 2000
(f) Align centerline of airplane on magnetic South heading and note resulting South error.
Adjust N-S set screw until one-half of error is removed.
(g) Align centerline of airplane on magnetic West heading and note resulting West error.
Adjust E-W set screw until one-half of error is removed.
(h) Align centerline of airplane in successive magnetic 30-degree headings and record com-
pass readings on appropriate deviation card. Deviations must not exceed 10 degrees on
any heading.
B. Turn Coordinator (See Figure 34-202)
(1) Removal - Turn Coordinator
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in off position.
(b) Pull TURN COORDINATOR circuit breaker.
(c) Remove pilot-side kick plate.(Refer to 25-10)
(d) Disconnect instrument light connector and cable assembly from back of turn coordinator.
(e) While supporting turn coordinator, remove screws and washers securing unit to instrument
panel.
(f) Remove turn coordinator from airplane.
(2) Installation - Turn Coordinator
(a) Position turn coordinator in instrument panel and install washers and screws.
(b) Connect connector and cable assembly.
(c) Install pilot-side kick plate. (Refer to 25-10)
(d) Reset TURN COORDINATOR circuit breaker.
C. Attitude Indicator (See Figure 34-202)
(1) Removal - Attitude Indicator
(a) Ensure BAT 1, BAT 2, and AVIONICS master switches are in off position.
(b) Pull INSTRUMENT LIGHTS circuit breaker.
(c) Remove glareshield. (Refer to 25-10)
(d) Disconnect electrical connector.
(e) While supporting attitude indicator, remove screws securing unit to instrument panel.
(f) Remove attitude indicator from airplane.
(2) Installation - Attitude Indicator
(a) Position attitude gage in instrument panel and attach with screws.
(b) Connect electrical connector.
(c) Attach vacuum and vent hoses.
(d) Install glareshield. (Refer to 25-10)
(e) Reset INSTRUMENT LIGHTS circuit breaker.