Piper PA-28-236 DAKOTA, Pilot Operating Handbook

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PIPER AIRCRAFT CORPORATION SECTION 9
PA-28-236, DAKOTA SUPPLEMENT 8
ISSUED: JULY 23, 1982 REPORT: VB-910
9-31
SECTION 4 - NORMAL PROCEDURES
(a) PREFLIGHT (PERFORM PRIOR TO EACH FLIGHT)
(1) GYROS - Allow 3-4 minutes for gyros to come up to speed.
(2) RADIO POWER Switch - ON
(3) PREFLIGHT TEST BUTTON - PRESS momentarily and NOTE:
a. All annunciator lights on (TRIM annunciator flashing).
b. After approximately 5 seconds, all annunciator lights off
except AP which will flash approximately 12 times and then
remain off.
NOTE
If trim warning light stays on then the manual
electric trim did not pass preflight test. The
pitch trim circuit breaker should be pulled. The
autopilot can still be used.
(4) MANUAL ELECTRIC TRIM (if installed) - TEST as follows:
a. Actuate the left side of the split switch to the fore and aft
positions. The trim wheel should not move on its own. Rotate
the trim wheel manually against the engaged clutch to check
the pilot’s overpower capability.
b. Actuate right side of split switch unit to the fore and aft
positions. The trim wheel should not move on its own and
normal trim wheel force is required to move it manually.
c. Press the AP DISC/TRIM INTER switch down and hold.
Manual Electric Trim should not operate either nose up or or
nose down.
(5} AUTOPILOT- ENGAGE by pressing AP ENG button.
(6) CONTROL WHEEL- MOVE left and right to verify that the
autopilot can be overpowered.
(7) AP DISC/TRIM INTER Switch - PRESS. Verify that the autopilot
disconnects and all modes are cancelled.
(8) TRIM -SET to take off position.
(b) AUTOPILOT OPERATION
(1) Before takeoff
AP DISC/TRIM INTER Switch - PRESS.