Piper SEMINOLE PA-44-180, Maintenance Manual

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Figure 73-5. Adjustment of Engine Controls (Sheet 1 of 2)
(PA-44-180, s/n’s 44-7195001 thru 44-8195026, and PA-44-180T, s/n’s 44-8107001 and up.)
3. Check security of cable casing attachments.
4. Pull the throttle and mixture levers in the cockpit full aft to ascertain that the idle screw contacts its top
and the mixture control arm contacts its lean position.
5. Adjust the carburetor heat control as follows:
A. Position the air box valve in the full cold position and the cockpit control 0.16 inch below the cold
detent.
B. The air box valve must be in the full heat position when the cockpit control is in the hot position .
ADJUSTMENT OF THROTTLE, MIXTURE AND CARBURETOR HEAT CONTROLS. (PA-44-180,
s/n’s 4495001 and up.) (Refer to Figure 73-5, Sheet 2 of 2.)
1. Throttle
With the engine throttle control at full throttle position, rig quadrant throttle lever to provide a 0.030
to 0.060 inch cushion from forward stop. Adjust the throttle as follows:
A.
Disconnect the clevis end of the throttle control cable from the control arm at the carburetor.
Loosen the jam nut that secures the clevis end.
B. Adjust the linkage by rotating the clevis end of the cable to obtain 0.030 to 0.060 inch cushion on
instrument panel stop when in full throttle position.
C. Reconnect the clevis end to the control arm and safety.
2. Mixture
With the engine mixture control at full rich position, rig quadrant mixture lever to provide a 0.030 to
0.060 inch cushion from forward stop. Adjust the mixture as follows:
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
73-20-02
Page 73-07
Revised: June 20, 1995
3F10
PA-44-180
THROTTLE VALVE
PA-44-180T
THROTTLE VALVE
MIXTURE
THROTTLE