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Cherokee Electric Pitch Trim
I have a 1977 Archer II with factory-installed electric pitch trim. The
trim servo motor works in both directions, but it doesn't work well for moving the cables. When the ambient temperature is warm, the electric trim works acceptably but occasionally seems to "slip," and when it's cold, I can forget about it. The manual trim wheel seems to have smooth movement regardless of temperature, though it is a bit stiff in extremely cold temperatures. When I run the electric trim, even in warm temperatures, I can literally place my finger on the trim wheel and get it to slip. I do have the Piper maintenance manuals for the airplane, but it appears that the maintenance manual for the electric trim system is not included for the Archer II. I assume that either the servo clutch is bad or the jack screw needs to be disassembled, cleaned, and reassembled due to too much resistance (though the manual trim wheel is not hard to move). Does anyone have a suggestion, or know where I can locate the maintenance manual? Thanks, JKG |
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